1. www.ghgprotocol.org
1. Introduction: Background on Scope 2 and the need for
Guidance
2. Boundary: How do I determine what are my scope 2
emissions and how do I set my scope 2 boundary?
3. Background: What are “energy attribute certificates” like
RECs?
4. Methods: What are the two scope 2 accounting methods?
5. Calculation: How do I calculate emissions based on both
methods?
6. Requirements: What are the new accounting and
reporting requirements?
7. Targets: How do I set reduction targets with the new
methods and track emissions over time ?
8. Impact: How can I drive bigger impacts on new low-carbon
projects that reduce emissions beyond BAU?
9. Examples: Calculation examples
Outline
2. www.ghgprotocol.org
• How to identify and calculate emissions
• Where to find relevant emission factors
• How to choose which emission factors are most appropriate for
your inventory
For further reading, see:
GHG Protocol Scope 2 Guidance Chapter 6: Calculating Emissions.
Learning objectives
3. www.ghgprotocol.org
1. Identify GHG emission sources for scope 2 emissions
2. Determine whether the market-based approach applies
3. Collect activity data and choose emission factors for each
method
4. Calculate emissions
5. Roll up GHG emissions data to corporate level
Steps to calculating emissions
4. www.ghgprotocol.org
Scope 2 = Activity x Emission
Emissions Data Factor (EF)
MWh mt CO2e/
MWh
How do I calculate scope 2 emissions?
MWh Market-based
Location-based
For every MWh…
Need an EF for
each method.
EF represents
what’s generating
on the grid
EF derived from
contractual
information,
applied on a
MWh basis
5. www.ghgprotocol.org
• Metered electricity consumption or utility bills specifying
consumption in MWh or kWh
• If not available, estimations may be used such as allocating an
entire building’s electricity usage to all tenants on the basis of
the reporter’s square footage and the building’s occupancy rate
(called the Area Method).
Activity data
6. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
7. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
For location-based
scope 2: calculate using
grid average emission
factor types in Table
6.2.
If no
You will report one
scope 2, location-
based method.
8. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
You will report two scope 2 totals for
the overall corporate inventory: one
market-based and one location-based.
For location-based
scope 2: calculate using
grid average emission
factor types in Table
6.2.
If yes
If no
You will report one
scope 2, location-
based method.
9. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
You will report two scope 2 totals for
the overall corporate inventory: one
market-based and one location-based.
For location-based
scope 2: calculate using
grid average emission
factor types in Table
6.2.
If yes
If no
If no
For market-based scope 2: data that
meet the Quality Criteria?
You will report one
scope 2, location-
based method.
Calculate using
residual mix or
location-based
emission factors
10. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
You will report two scope 2 totals for
the overall corporate inventory: one
market-based and one location-based.
Calculate using
residual mix or
location-based
emission factors
Calculate using
the emission
factors derived
from contractual
instrument
For location-based
scope 2: calculate using
grid average emission
factor types in Table
6.2.
If yes
If no
If yes
If no
For market-based scope 2: data that
meet the Quality Criteria?
You will report one
scope 2, location-
based method.
11. www.ghgprotocol.org
FLOW CHART VISUAL?
Are any of your energy-consuming facilities located in areas where grid
customers can be provided with product or supplier-specific data in the
form of contractual instruments?
You will report two scope 2 totals for
the overall corporate inventory: one
market-based and one location-based.
Calculate using
residual mix or
location-based
emission factors
Calculate using
the emission
factors derived
from contractual
instrument
For location-based
scope 2: calculate using
grid average emission
factor types in Table
6.2.
If yes
If no
If yes
If no
For market-based scope 2: data that
meet the Quality Criteria?
You will report one
scope 2, location-
based method.
12. www.ghgprotocol.org
1. Multiply activity data from each operation by the emission factor
for that activity for each applicable GHG. Some electricity
emission factor sets may include emission rates for CO2, CH4
and N2O; others may only provide CO2 emission rates (see Box
7.1)
2. Multiply Global Warming Potential (GWP) values by the GHG
emissions totals to calculate total emissions in CO2equivalent
(CO2e).
3. Report final scope 2 by each method in metric tons of each
GHG (where available) and in metric tons of CO2e.
Match emission factors to each unit of electricity
consumption
16. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Regional or sub-national
emission factors
eGRID total output emission rates (US)
Defra annual grid average emission factor
(UK)
National production emission
factors
IEA national electricity emission factors
Location-based Method Emission Factor Hierarchy
Data forms listed here should convey combustion-only (direct) GHG emission
rates, expressed in metric tons per MWh or kWh.
17. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Regional or sub-national
emission factors
eGRID total output emission rates (US)
Defra annual grid average emission factor
(UK)
National production emission
factors
IEA national electricity emission factors
Location-based Method Emission Factor Hierarchy
Data forms listed here should convey combustion-only (direct) GHG
emission rates, expressed in metric tons per MWh or kWh.
18. www.ghgprotocol.org
• Location-based is not supplier-specific.
• Grid average emission factors do not factor out contractual purchases
• Grid average emission factors are different from marginal grid emission
factors
– Spatial boundaries: Approximate regions of energy distribution and use,
such as balancing areas. All generation and emissions data within this
boundary should be aggregated and any net physical energy
imports/exports and their related emissions should be taken into account.
– Other data quality: Companies can evaluate emission factor data based on
quality indicators including their reliability, completeness, and geographic,
temporal, and technological representativeness.
Guidance on location-based method emission factors
22. www.ghgprotocol.org
Can I use the Clean Development Mechanism (CDM)
country-published emission factors for the location-based
method calculation?
- No. These emission factors are designed for estimating
emission reductions from renewable energy or energy efficiency
carbon offset projects. They reflect the marginal emission rate
on the grid, not the grid average emission rate required for
scope 2 accounting.
- In the absence of better information, stick with International
Energy Agency national emission factors.
Frequently Asked Question
23. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Electricity attribute
certificates or equivalent
instruments
Renewable Energy Certificates (US, Canada, Australia and others)
Generator Declarations (UK) for fuel mix disclosure
Guarantees of Origin (EU)
Any other certificate instruments meeting the Quality Criteria
Contracts for electricity, such
as power purchase agreements
(PPAs )
• In the US, contracts for electricity from specified non-renewable
sources like coal in regions other than NEPOOL and PJM
Contracts that convey attributes to the entity consuming the power
where certificates do not exist.
Supplier/Utility emission rates
Emission rate allocated and disclosed to retail electricity users
Green energy tariffs
Voluntary renewable electricity program or product
Residual mix (sub-national or
national)
Calculated by EU country under RE-DISS project ,
Other grid-average emission
factors (sub-national or
national) – see location-based
data
eGRID total output emission rates (US). In many regions this
approximates a consumption-boundary, as eGRID regions are drawn
to minimize imports/exports
Defra annual grid average emission factor (UK)
IEA national electricity emission factors
Market-based Method Emission Factor
Hierarchy
24. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Electricity attribute
certificates or equivalent
instruments
Renewable Energy Certificates (US, Canada, Australia and others)
Generator Declarations (UK) for fuel mix disclosure
Guarantees of Origin (EU)
Any other certificate instruments meeting the Quality Criteria
Contracts for electricity, such
as power purchase agreements
(PPAs )
• In the US, contracts for electricity from specified non-renewable
sources like coal in regions other than NEPOOL and PJM
Contracts that convey attributes to the entity consuming the power
where certificates do not exist.
Supplier/Utility emission rates
Emission rate allocated and disclosed to retail electricity users
Green energy tariffs
Voluntary renewable electricity program or product
Residual mix (sub-national or
national)
Calculated by EU country under RE-DISS project ,
Other grid-average emission
factors (sub-national or
national) – see location-based
data
eGRID total output emission rates (US). In many regions this
approximates a consumption-boundary, as eGRID regions are drawn
to minimize imports/exports
Defra annual grid average emission factor (UK)
IEA national electricity emission factors
Market-based Method Emission Factor
Hierarchy
25. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Electricity attribute
certificates or equivalent
instruments
Renewable Energy Certificates (US, Canada, Australia and others)
Generator Declarations (UK) for fuel mix disclosure
Guarantees of Origin (EU)
Any other certificate instruments meeting the Quality Criteria
Contracts for electricity, such
as power purchase agreements
(PPAs )
• In the US, contracts for electricity from specified non-renewable
sources like coal in regions other than NEPOOL and PJM
Contracts that convey attributes to the entity consuming the power
where certificates do not exist.
Supplier/Utility emission rates
Emission rate allocated and disclosed to retail electricity users
Green energy tariffs
Voluntary renewable electricity program or product
Residual mix (sub-national or
national)
Calculated by EU country under RE-DISS project ,
Other grid-average emission
factors (sub-national or
national) – see location-based
data
eGRID total output emission rates (US). In many regions this
approximates a consumption-boundary, as eGRID regions are drawn
to minimize imports/exports
Defra annual grid average emission factor (UK)
IEA national electricity emission factors
Market-based Method Emission Factor
Hierarchy
26. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Electricity attribute
certificates or equivalent
instruments
Renewable Energy Certificates (US, Canada, Australia and others)
Generator Declarations (UK) for fuel mix disclosure
Guarantees of Origin (EU)
Any other certificate instruments meeting the Quality Criteria
Contracts for electricity, such
as power purchase agreements
(PPAs )
• In the US, contracts for electricity from specified non-renewable
sources like coal in regions other than NEPOOL and PJM
Contracts that convey attributes to the entity consuming the power
where certificates do not exist.
Supplier/Utility emission rates
Emission rate allocated and disclosed to retail electricity users
Green energy tariffs
Voluntary renewable electricity program or product
Residual mix (sub-national or
national)
Calculated by EU country under RE-DISS project ,
Other grid-average emission
factors (sub-national or
national) – see location-based
data
eGRID total output emission rates (US). In many regions this
approximates a consumption-boundary, as eGRID regions are drawn
to minimize imports/exports
Defra annual grid average emission factor (UK)
IEA national electricity emission factors
Market-based Method Emission Factor
Hierarchy
27. www.ghgprotocol.org
EMISSION FACTORS INDICATIVE EXAMPLES
Electricity attribute
certificates or equivalent
instruments
Renewable Energy Certificates (US, Canada, Australia and others)
Generator Declarations (UK) for fuel mix disclosure
Guarantees of Origin (EU)
Any other certificate instruments meeting the Quality Criteria
Contracts for electricity, such
as power purchase agreements
(PPAs )
• In the US, contracts for electricity from specified non-renewable
sources like coal in regions other than NEPOOL and PJM
Contracts that convey attributes to the entity consuming the power
where certificates do not exist.
Supplier/Utility emission rates
Emission rate allocated and disclosed to retail electricity users
Green energy tariffs
Voluntary renewable electricity program or product
Residual mix (sub-national or
national)
Calculated by EU country under RE-DISS project
Other grid-average emission
factors (sub-national or
national) – see location-based
data
eGRID total output emission rates (US). In many regions this
approximates a consumption-boundary, as eGRID regions are drawn
to minimize imports/exports
Defra annual grid average emission factor (UK)
IEA national electricity emission factors
Market-based Method Emission Factor
Hierarchy
28. www.ghgprotocol.org
What is a REC swap? How do I account for it?
- Definition: where a company acts as an off-taker to a renewable
energy project, entering into a power purchase agreement, but the
RECs from the generation are sold to another party, typically a utility.
The offtaker then buys unbundled “replacement” RECs so that a green
power usage and scope 2 claim can still be made.
- The scope 2 accounting looks at the replacement RECs. The sold RECs
are out of the picture.
- See Federal Trade Commission guidelines on how to describe
renewable energy usage (e.g. can only refer to features of
replacement RECs, not the power purchase agreement project).
Frequently Asked Question
29. www.ghgprotocol.org
Supplier emission factor disclosure
?
Owned
asset,
purchased
power
Power
purchase
agreement or
contract
Supplier
• An emissions factor/rate for every MWh supplied to customers
• For energy generation that has certificates – must have + retire on
behalf of customers
• Unbundled certificates possible – must apply transparently to
delivered energy (either for whole product or just green power
program)
34. www.ghgprotocol.org
Example market-based method calculation
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
MB in
lbs CO2e
Nevada 1,000 MWh 669.23 NWPP 750 lbs CO2e/MWh
(utility emission
factor)
750,000
California 500 MWh 652.72 CAMX Green pricing
program for 100%
of consumption
0
Indiana 500 MWh 1,386.55 RFCW 250 MWh RECs 346,638
New York 100 MWh 140.31 NYUP No information 14,031
Florida 100 MWh 1,129.86 FRCC 1,580 lbs
CO2e/MWh (utility
emission factor)
158,000
Total 0
35. www.ghgprotocol.org
Why is it hard to get supplier specific factors? What amount
of effort should I put in?
- Possible reasons:
- Suppliers lack knowledge of Scope 2 consumer requirements
- Complex reporting for complex utility/holding company
structures and multiple customer classes
- Reporting overload: permitting, GHG reporting, EIA forms,
state environmental labels/power source disclosure (usually
only owned assets)
- Staff turnover
- Data acquisition should not overtake inventory process –other
data available on the emission factor hierarchy.
Frequently Asked Question
36. www.ghgprotocol.org
• Definition: The mix of energy generation resources and associated attributes
such as GHG emissions in a defined geographic boundary left after contractual
instruments have been claimed/ retired/canceled. The residual mix can
provide an emission factor for companies without contractual instruments to
use in a market-based method calculation.
Residual Mix
Only available in EU currently
37. www.ghgprotocol.org
• Definition: The mix of energy generation resources and associated attributes
such as GHG emissions in a defined geographic boundary left after contractual
instruments have been claimed/ retired/canceled. The residual mix can
provide an emission factor for companies without contractual instruments to
use in a market-based method calculation.
Residual Mix
Market boundary
REC
Generation Mix Generation Mix
REC
Unclaimed attributes
Residual mix for a state or country = State or country generation mix (grid
average factor) – sold attributes (e.g. RECs) + unclaimed attributes from
other regions in the market boundary (in portion to sold attributes)
38. www.ghgprotocol.org
• Guidance does not prescribe how to allocate certificates to
consumption sites within a market boundary
• Companies should clarify method they use
• Example: One 100 MW wind project in Texas generates enough RECs
for half of a company’s U.S. footprint (offices in five states). The
company can decide how RECs are allocated to each office on a MWh
basis.
How to “apply” certificates if decentralized
39. www.ghgprotocol.org
Why can’t we treat RECs like offsets, and deduct avoided
emissions?
• RECs are not offsets, do not convey tons avoided global
emissions that can be deducted form the inventory. Secondary
avoided emissions attribute can be reported separately for
context.
• Avoided emissions/”offset” approach would treat renewables
differently from other labeled electricity. Not consistent with
how suppliers calculate and disclose emissions.
• Reductions approach more relevant for new and additional
projects, not able to be consistently applied across scope 2.
Would require time limit/eligibility decisions.
Frequently Asked Question
40. www.ghgprotocol.org
1. Introduction: Background on Scope 2 and the need for
Guidance
2. Boundary: How do I determine what are my scope 2
emissions and how do I set my scope 2 boundary?
3. Background: What are “energy attribute certificates” like
RECs?
4. Methods: What are the two scope 2 accounting methods?
5. Calculation: How do I calculate emissions based on both
methods?
6. Requirements: What are the new accounting and
reporting requirements?
7. Targets: How do I set reduction targets with the new
methods and track emissions over time ?
8. Impact: How can I drive bigger impacts on new low-carbon
projects that reduce emissions beyond BAU?
9. Examples: Calculation examples
Outline
41. www.ghgprotocol.org
• Which information must reported in a GHG inventory
• Which information may be reported optionally
• Each market-based method Scope 2 Quality Criteria and how to
apply it to contractual data
For further reading, see:
GHG Protocol Scope 2 Guidance Chapter 7: Accounting and
Reporting Requirements and Chapter 8: Recommended Reporting
on Instrument Features and Policy Context.
Learning objectives
42. www.ghgprotocol.org
For companies with operations only in
markets without information or choice
about electricity product or supplier
No change.
Only one scope 2 total will be reported based on
the location-based method.
43. www.ghgprotocol.org
For companies with operations in
markets with information about their
electricity product or supplier:
1. Dual reporting
• Methodology disclosure
• Method in base year
• Method basis for goal setting
2. Scope 2 Quality Criteria
3. Recommended additional disclosures
45. www.ghgprotocol.org
Contractual instruments shall:
1. Convey GHG information
2. Be an exclusive claim
3. Be retired
4. Match up to inventory period
5. Be sourced from same market as company
Utility emission factors shall be:
6. Calculated based on delivered electricity
Direct purchases shall:
7. Convey GHG claims to the purchaser
Using any instruments requires:
8. Adjusted residual mix, or disclose its absence
Scope 2 Quality Criteria (for market-based method)
46. www.ghgprotocol.org
• Why this criteria? Scope 2 accounting requires emission rate (tons
Co2e/MWh) so certificate must convey this. Ensures it is designed and
intended for consumer claims.
• If certificates do not specify attributes: Certificates that do not currently
specify what, if any, energy attribute claims are conveyed, may still
convey a claim implicitly through proving the second point: that no
consumer is claiming the same energy generation attributes. Evidence of
this may be achieved through attestations from each owner in the chain
of custody or equivalent procedures providing the same information.
• If the attribute emission rate itself is not specified and the technology is
not zero emissions, the reporting organization should seek from the
generating entity a specific emission rate from that generation facility.
Otherwise, a default factor from IPCC or other government publications
may be used and disclosed.
Criteria 1: Conveying GHG emission rate attribute and claims
47. www.ghgprotocol.org
Criteria 2: Unique claims
• Why this criteria? Ensure no double counting in scope 2 across
multiple instruments.
• Where multiple instruments carry the GHG emission rate attribute
claim, some jurisdictions or programs may require acquisition and
“pairing” of the multiple certificates to support a voluntary consumer
GHG emission rate claim.
48. www.ghgprotocol.org
Criteria 3: Retirement for claims
• Why this criteria? Ensure only consumers make a claim, even as
instrument may change hands through trading.
• Terminology: Retired/redeemed/claimed/canceled
• Achieved through tracking system, audit of contracts, 3rd party
certification, or other disclosure registries, systems or mechanisms.
49. www.ghgprotocol.org
Criteria 4: Vintage
• Why this criteria? Ensure temporal accuracy (as much as possible) in
scope 2 accounting in market-based method. The generation on which
the emission factors are based occurs close in time to the reporting
period for which the certificates (or emissions) are claimed.
• Date of energy generation from which the contractual instrument is
• derived. (This is different from the age of the facility.)
• Should be consistent with existing standards for the market where the
contractual instruments exist.
50. www.ghgprotocol.org
Criteria 4: Vintage
• Why this criteria? Ensure temporal accuracy (as much as possible) in
scope 2 accounting in market-based method. The generation on which
the emission factors are based occurs close in time to the reporting
period for which the certificates (or emissions) are claimed.
• Date of energy generation from which the contractual instrument is
• derived. (This is different from the age of the facility.)
• Should be consistent with existing standards for the market where the
contractual instruments exist.
51. www.ghgprotocol.org
• Why this criteria? Ensure certificates are used as intended by electricity
suppliers and regulators, and consumers direct demand to market reasonably
linked to their usage.
• Why limit it to a regional market? No globally liquid market for certificates,
because no single electricity market. Boundary for usage should be “reasonable
for an RE usage claim.”
• Why not make it grid region? Definition of a tradable instrument already
necessitates a separation from “physical” flows, so any further restrictions would
simply be policy/program choices rather than “inherent accounting” restrictions.
• If the market boundary is not specified or not clear:
• Assume political (country) or regulatory boundaries, not just physical
interconnection. Over time can be group of countries that recognize each other’s
certificates as fungible and available to any consumers located therein, and
create common tracking system and residual mix.
Criteria 5: Market Boundary
52. www.ghgprotocol.org
• US as single market
- United by
overarching federal
laws (FERC) despite
state regulation of
sector
- Argument to provide
flexibility in sourcing,
build RE where most
cost-effective
54. www.ghgprotocol.org
Why can’t we apply a certificate from one country to
another? What if there are no certificates/contracts/supplier
programs available in the countries where I have operations?
• Goal is to address company’s electricity emissions where they occur.
• Markets take time to develop. Electricity consumers demanding
disclosure, tracking and procurement options can help build market,
change supply and reduce emissions over time.
• In the meantime, use other scope 2 emission factor sources.
Frequently Asked Question
55. www.ghgprotocol.org
1. Annual electricity consumption (in kWh, MWh, BTU, etc.)
2. Method basis for upstream scope 3
3. Instrument features
4. Other instrument retirement
5. Role of corporate procurement in driving
Recommended reporting (1 of 2)
56. www.ghgprotocol.org
To distinguish differences in purchases between markets, and
enhance transparency, Guidance recommends disclosing:
• Instrument labels
• Power plant features
– resource type, facility location, facility age
• Policy context
– Supplier quotas like RPS?
– Cap and trade?
– Funding/subsidy receipt?
Recommended reporting (2 of 2)
57. www.ghgprotocol.org
1. Scope 2 totals disaggregated by country
2. Avoided emissions estimation
3. Advanced grid study estimation
4. Scope 2 results calculated by other methods
5. Purchases that did not meet S2 Quality Criteria
Optional reporting
58. www.ghgprotocol.org
1. Introduction: Background on Scope 2 and the need for
Guidance
2. Boundary: How do I determine what are my scope 2
emissions and how do I set my scope 2 boundary?
3. Background: What are “energy attribute certificates” like
RECs?
4. Methods: What are the two scope 2 accounting methods?
5. Calculation: How do I calculate emissions based on both
methods?
6. Requirements: What are the new accounting and
reporting requirements?
7. Targets: How do I set reduction targets with the new
methods and track emissions over time ?
8. Impact: How can I drive bigger impacts on new low-carbon
projects that reduce emissions beyond BAU?
9. Examples: Calculation examples
Outline
59. www.ghgprotocol.org
• How to assess your company’s emissions trends
• How to choose a base year
• How to clarify whether reduction targets reflect market-based
method results, location-based method results, or both
• When you may need to re-calculate base year emissions
For further reading, see:
GHG Protocol Scope 2 Guidance Chapter 9: Setting Reduction
Targets and Tracking Emissions over Time.
Learning objectives
60. www.ghgprotocol.org
• Companies that have already set a base year for scope 2 shall specify which
method was used to calculate it, in order to allow for clearer comparison over
time.
• For companies calculating a GHG inventory for the first time, the Corporate
Standard guidance on choosing a base year applies (see Chapter 5 of the
Corporate Standard).
Selecting a base year
61. www.ghgprotocol.org
• This guidance’s new requirement to report scope 2 according to two different
methodologies—location-based and market-based—constitutes a change that
could trigger base-year recalculation.
• Companies should ensure that the base-year inventory includes both a
location-based and market-based scope 2 total, if applicable and feasible. This
ensures “like with like” comparison over time.
• For most companies, location-based data was used in the base year and
market-based contractual information was not likely available. Therefore,
recalculation would only entail disclosing that the market-based figure for the
base year is the same as location-based (using ‘proxy data’).
Recalculating base year
62. www.ghgprotocol.org
• If setting a target, companies shall specify which method is used in the goal
calculation and progress tracking.
• Two targets, one for each method’s results, can help prioritize new low-carbon
energy projects that will reduce both totals’ emissions over time (if contractual
instruments are retained from the project).
• Renewable energy sourcing targets should follow market-based
methodology – no double counting location-based levels of RE and
certificates.
• Supplier-specific emission factors and RE product disclosure typically includes
RE sourced to meet quota (e.g. RPS in US), and forms a portion of all
customers’ electricity. Programs recognizing corporate leadership differ as to
how this is counted towards corporate targets.
Targets
63. www.ghgprotocol.org
1. Introduction: Background on Scope 2 and the need for
Guidance
2. Boundary: How do I determine what are my scope 2
emissions and how do I set my scope 2 boundary?
3. Background: What are “energy attribute certificates” like
RECs?
4. Methods: What are the two scope 2 accounting methods?
5. Calculation: How do I calculate emissions based on both
methods?
6. Requirements: What are the new accounting and
reporting requirements?
7. Targets: How do I set reduction targets with the new
methods and track emissions over time ?
8. Impact: How can I drive bigger impacts on new low-carbon
projects that reduce emissions beyond BAU?
9. Examples: Calculation examples
Outline
64. www.ghgprotocol.org
• The difference between corporate accounting and project-level accounting
• The term “additionality” in offset accounting and its application to energy
accounting in scope 2
• Different ways to achieve impact
For further reading, see:
GHG Protocol Scope 2 Guidance Chapter 11: How Companies can drive Electricity
Supply Changes over Time with the Market-Based Method.
Learning objectives
65. www.ghgprotocol.org
• Definition: A criterion often applied to GHG project activities, stipulating
that project-based GHG reductions should only be quantified if the project
activity “would not have happened anyway”—i.e., that the project activity
(or the same technologies or practices that it employs) would not have
been implemented in its baseline scenario.
• Why not require?
– The market-based method for scope 2 accounting applies to all energy
generation in a defined grid, not just “low-carbon” or renewable energy
from projects supported by a specific company’s financial support.
– Suppliers and companies can make energy procurement choices that
can shift a company’s impact from “aggregate” to more directly
spurring an increase in new, low-carbon energy generation facilities in
a short period of time, consistent with the ambition needed to avoid
dangerous climate change.
Concept of Additionality
67. www.ghgprotocol.org
• Contributing to
aggregate
demand over
long-term
Spectrum of impact
• New low-carbon
generation you
helped come
online this year
Period of Time (Short to Long)
Attribution
(Direct
to
aggregate)
• Supplier green tariff
subscription from
existing facilities,
will build more if
more demand
68. www.ghgprotocol.org
1. Contract directly with new low-carbon energy projects
2. Work with electricity suppliers for new projects
3. Establish “eligibility criteria” for corporate procurement
4. Provide incremental funding or donations
Jurisdictional
policy
Certification
schemes
Utility/
supplier
labels
Corporate
policy and
decisions
Choices by all players in the market can have an impact
Companies can:
WRI papers on Additionality and policy interactions (like Clean
Power Plan) coming in Fall/Winter 2016-2017
69. www.ghgprotocol.org
1. Introduction: Background on Scope 2 and the need for
Guidance
2. Boundary: How do I determine what are my scope 2
emissions and how do I set my scope 2 boundary?
3. Background: What are “energy attribute certificates” like
RECs?
4. Methods: What are the two scope 2 accounting methods?
5. Calculation: How do I calculate emissions based on both
methods?
6. Requirements: What are the new accounting and
reporting requirements?
7. Targets: How do I set reduction targets with the new
methods and track emissions over time ?
8. Impact: How can I drive bigger impacts on new low-carbon
projects that reduce emissions beyond BAU?
9. Examples: Calculation examples
Outline
70. www.ghgprotocol.org
Example 1. No U.S. contractual purchases or information at all
Level: Easier
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information
?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP None, no
residual mix
California 500 MWh 652.72 CAMX “
Indiana 500 MWh 1,386.55 RFCW “
New York 100 MWh 140.31 NYUP “
Florida 100 MWh 1,129.86 FRCC “
Total
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
71. www.ghgprotocol.org
Example 1. No U.S. contractual purchases or information at all
Level: Easier
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information
?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP None, no
residual mix
669,230
California 500 MWh 652.72 CAMX “ 326,360
Indiana 500 MWh 1,386.55 RFCW “ 693,275
New York 100 MWh 140.31 NYUP “ 14,031
Florida 100 MWh 1,129.86 FRCC “ 112,986
Total 1,815,882
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
72. www.ghgprotocol.org
Example 1. No U.S. contractual purchases or information at all
Level: Easier
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information
?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP None, no
residual mix
669,230 669,230
California 500 MWh 652.72 CAMX “ 326,360 326,360
Indiana 500 MWh 1,386.55 RFCW “ 693,275 693,275
New York 100 MWh 140.31 NYUP “ 14,031 14,031
Florida 100 MWh 1,129.86 FRCC “ 112,986 112,986
Total 1,815,882 1,815,882
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
73. www.ghgprotocol.org
Example 2. RECs to match all U.S. consumption
Level: Easier
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
Nevada 1,000 MWh 669.23 NWPP 1,000 MWh RECs @
0 lbs CO2e/MWh
669,230
California 500 MWh 652.72 CAMX 1,000 MWh RECs @
0 lbs CO2e/MWh
326,360
Indiana 500 MWh 1,386.55 RFCW 500 MWh RECs @
0 lbs CO2e/MWh
693,275
New York 100 MWh 140.31 NYUP 100 MWh RECs @ 0
lbs CO2e/MWh
14,031
Florida 100 MWh 1,129.86 FRCC 100 MWh RECs @ 0
lbs CO2e/MWh
112,986
Total 1,815,882
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
74. www.ghgprotocol.org
Example 2. RECs to match all U.S. consumption
Level: Easier
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
Nevada 1,000 MWh 669.23 NWPP 1,000 MWh RECs @
0 lbs CO2e/MWh
669,230 0
California 500 MWh 652.72 CAMX 1,000 MWh RECs @
0 lbs CO2e/MWh
326,360 0
Indiana 500 MWh 1,386.55 RFCW 500 MWh RECs @
0 lbs CO2e/MWh
693,275 0
New York 100 MWh 140.31 NYUP 100 MWh RECs @ 0
lbs CO2e/MWh
14,031 0
Florida 100 MWh 1,129.86 FRCC 100 MWh RECs @ 0
lbs CO2e/MWh
112,986 0
Total 1,815,882 0
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
75. www.ghgprotocol.org
Example 3. 1,000 MWhs RECs purchased
Level:
Moderate
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
Nevada 1,000 MWh 669.23 NWPP 669,230
California 500 MWh 652.72 CAMX 326,360
Indiana 500 MWh 1,386.55 RFCW 693,275
New York 100 MWh 140.31 NYUP 14,031
Florida 100 MWh 1,129.86 FRCC 112,986
Total 1,815,882
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
Allocation to sites is up to you!
76. www.ghgprotocol.org
Example 3. 1,000 MWhs RECs purchased
Level:
Moderate
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP 1,000 MWh RECs 669,230 0
California 500 MWh 652.72 CAMX No information 326,360 326,360
Indiana 500 MWh 1,386.55 RFCW No information 693,275 693,275
New York 100 MWh 140.31 NYUP No information 14,031 14,031
Florida 100 MWh 1,129.86 FRCC No information 112,986 112,986
Total 1,815,882 1,146,652
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
Allocation to sites is up to you! – All allocated to Nevada site
77. www.ghgprotocol.org
Example 3. 1,000 MWhs RECs purchased
Level:
Moderate
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP No information 669,230 669,230
California 500 MWh 652.72 CAMX 300 MWh RECs
(200 MWhs with
no information)
326,360 130,544
Indiana 500 MWh 1,386.55 RFCW 500 MWh RECs 693,275 0
New York 100 MWh 140.31 NYUP 100 MWh RECs 14,031 0
Florida 100 MWh 1,129.86 FRCC 100 MWh RECs 112,986 0
Total 1,815,882 912,760
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
Allocation to sites is up to you! – allocated to multiple sites
78. www.ghgprotocol.org
Example 4. Partial supplier specific information
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
Nevada 1,000 MWh 669.23 NWPP 750 lbs CO2e/MWh
(utility emission
factor)
669,230
California 500 MWh 652.72 CAMX Green pricing
program for 100%
of consumption
326,360
Indiana 500 MWh 1,386.55 RFCW 250 MWh RECs 693,275
New York 100 MWh 140.31 NYUP No information 14,031
Florida 100 MWh 1,129.86 FRCC 1,580 lbs
CO2e/MWh (utility
emission factor)
112,986
Total 1,815,882 0
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
Level:
Moderate
79. www.ghgprotocol.org
Example 4. Partial supplier specific information
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in lbs
CO2e
Nevada 1,000 MWh 669.23 NWPP 750 lbs CO2e/MWh
(utility emission
factor)
669,230 750,000
California 500 MWh 652.72 CAMX Green pricing
program for 100%
of consumption
326,360 0
Indiana 500 MWh 1,386.55 RFCW 250 MWh RECs 693,275 346,638
New York 100 MWh 140.31 NYUP No information 14,031 14,031
Florida 100 MWh 1,129.86 FRCC 1,580 lbs
CO2e/MWh (utility
emission factor)
112,986 158,000
Total 1,815,882 1,268,669
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
Level:
Moderate
80. www.ghgprotocol.org
Example 5. Asia Pacific Sites
Sites Annual
Consumption
National
EF1
Contractual
information?
LB in tons
CO2e
MB in tons
CO2e
Japan 1,000 MWh 0.55 Supplier specific factor,
0.45 tCO2e/MWh
Australia 500 MWh 0.79 green power program
for 100% consumption
India A 500 MWh 0.82 Wind contract for 50%
consumption
India B 100 MWh 0.82 No information
India C 100 MWh 0.82 No information
Total
1. International Energy Agency, reported here in tonnes CO2e/mWh
Level:
Moderate
81. www.ghgprotocol.org
Example 5. Asia Pacific Sites
Sites Annual
Consumption
National
EF1
Contractual
information?
LB in tons
CO2e
MB in tons
CO2e
Japan 1,000 MWh 0.55 Supplier specific factor,
0.45 tCO2e/MWh 550
Australia 500 MWh 0.79 green power program
for 100% consumption 395
India A 500 MWh 0.82 Wind contract for 50%
consumption 410
India B 100 MWh 0.82 No information
82
India C 100 MWh 0.82 No information
82
Total 1,519
1. International Energy Agency, reported here in tonnes CO2e/mWh
Level:
Moderate
82. www.ghgprotocol.org
Example 5. Asia Pacific Sites
Sites Annual
Consumption
National
EF1
Contractual
information?
LB in tons
CO2e
MB in tons
CO2e
Japan 1,000 MWh 0.55 Supplier specific factor,
0.45 tCO2e/MWh 550
450
Australia 500 MWh 0.79 green power program
for 100% consumption 395
0
India A 500 MWh 0.82 Wind contract for 50%
consumption 410
205
India B 100 MWh 0.82 No information
82 82
India C 100 MWh 0.82 No information
82 82
Total 1,519 819
1. International Energy Agency, reported here in tonnes CO2e/mWh
Level:
Moderate
83. www.ghgprotocol.org
Example 6. U.S. onsite/Off-site combination
Level:
Difficult
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
California
Site A
100 MWh
electricity from CHP2
N/A for eGRID –
source specific is
600 lbs CO2e/MWh
Source specific is 600
lbs CO2e/MWh
California
Site B
100 MWh onsite
leased solar
consumption with
REC retention
N/A, onsite
source-specific
N/A, onsite source-
specific
100 MWh grid
consumption
652.72 CAMX 100 MWh REC
purchase
New
Jersey
100 MWh onsite
leased solar
consumption with
REC sales
862.86 RFCE REC sales, treat as
grid delivered – no
additional contractual
information
Total
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
2. CHP owned/operated by outside organization. Only consuming electricity output.
84. www.ghgprotocol.org
Example 6. U.S. onsite/Off-site combination
Level:
Difficult
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
California
Site A
100 MWh
electricity from CHP2
N/A for eGRID –
source specific is
600 lbs CO2e/MWh
Source specific is 600
lbs CO2e/MWh
60,000
California
Site B
100 MWh onsite
leased solar
consumption with
REC retention
N/A, onsite
source-specific
N/A, onsite source-
specific
0
100 MWh grid
consumption
652.72 CAMX 100 MWh outside REC
purchase
65,272
New
Jersey
100 MWh onsite
leased solar
consumption with
REC sales
862.86 RFCE REC sales, treat as
grid delivered – no
additional contractual
information
86,286
Total 211,558
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
2. CHP owned/operated by outside organization. Only consuming electricity output.
85. www.ghgprotocol.org
Example 6. U.S. onsite/Off-site combination
Level:
Difficult
Sites Annual
Consumption
eGRID
subregion and
EF1
Contractual
information?
LB in lbs
CO2e
MB in
lbs CO2e
California
Site A
100 MWh
electricity from CHP2
N/A for eGRID –
source specific is
600 lbs CO2e/MWh
Source specific is 600
lbs CO2e/MWh
60,000 60,000
California
Site B
100 MWh onsite
leased solar
consumption with
REC retention
N/A, onsite
source-specific
N/A, onsite source-
specific
0 0
100 MWh grid
consumption
652.72 CAMX 100 MWh outside REC
purchase
65,272 0
New
Jersey
100 MWh onsite
leased solar
consumption with
REC sales
862.86 RFCE REC sales, treat as
grid delivered – no
additional contractual
information
86,286 86,286
Total 211,558 146,286
1. EGRID 2012, reported here in lbs CO2e/MWh only, for simplicity. Full reporting by gas, and in metric tons,
required for complete inventory.
2. CHP owned/operated by outside organization. Only consuming electricity output.
86. www.ghgprotocol.org
• Download the Guidance, Executive
Summary, other materials at:
http://www.ghgprotocol.org/scope_2_gui
dance
Thanks!
Mary Sotos
Mary.sotos@wri.org
202-729-7627