Conservation Modeling and Verification in Agriculture Operations - Reinholtz
Download as PPTX, PDF0 likes353 views
This document discusses energy audits and modeling for agriculture operations. It addresses estimating energy savings from equipment upgrades, the disconnect that can occur between auditors and installers, and the importance of verification to ensure projected savings are achieved. Examples are provided showing potential savings from improvements like plate coolers, circulation fans, ventilation fans, and lighting upgrades. It emphasizes that producers should understand expected savings and have installations verified by an independent party to receive promised performance.
Conservation Modeling and Verification in Agriculture Operations - Reinholtz
- 1. GDS Associates, Inc. ENGINEERS & CONSULTANTS CONSERVATION MODELING AND VERIFICATION IN AGRICULTURE OPERATIONS
- 2. AGRICULTURE ENERGY AUDITS Required for some federal, state, utility programs Recommend EE options for the business May be based on auditor/producer/ utility/state/equipment dealer/BMP preferences
- 3. AGRICULTURE ENERGY AUDITS Used for: o Finding energy and cost savings o Acquiring incentives/payments/grants for improvements o Encourage equipment sales
- 4. ESTIMATING ENERGY SAVINGS Who is doing the modeling and calculations for energy savings? o Done by independent 3rd parties o Done by equipment dealers o Done using university tools
- 5. ESTIMATING ENERGY SAVINGS http://ruralenergy.wisc.edu/default.aspx http://maec.msu.edu/farmenergy/calcul ators.html Proprietary tools
- 6. ENERGY SAVINGS Energy audit is complete and producer installs recommendations How can he/she be sure they are getting what they paid for? How can an EE program be sure they are getting the savings they are paying incentives for?
- 7. THE DISCONNECT Disconnect between person doing energy audit, equipment dealer, and installer Energy savings and system performance vary based upon design changes and control set points that may appear minor
- 8. PLATE COOLER ON DAIRY FARM 0 40,000 80,000 120,000 Green Bay, WI 55⁰ well water Charlotte, NC 65⁰ well water Duluth, MN 45⁰ well water Sacramento, CA 70⁰ well water Annual kWh Usage Analysis of Plate Coolers Baseline - no plate cooler kWh Milk enter bulk tank within 15°F of well water temp (0.5" water line) Milk enter bulk tank within 7°F of well water temp (0.75" water line) Milk enter bulk tank within 2°F of well water temp (1.25" water line)
- 9. PLATE COOLER ON DAIRY FARM 0 40,000 80,000 120,000 Green Bay, WI 55⁰ well water Charlotte, NC 65⁰ well water Duluth, MN 45⁰ well water Sacramento, CA 70⁰ well water Annual kWh Usage Analysis of Plate Coolers Baseline - no plate cooler kWh Milk enter bulk tank within 15°F of well water temp (0.5" water line) Milk enter bulk tank within 7°F of well water temp (0.75" water line) Milk enter bulk tank within 2°F of well water temp (1.25" water line) 59% savings from 15 to 2 41% savings from 15 to 2 27% savings from 15 to 2 25% savings from 15 to 2
- 10. HVLS FANS 0 4,000 8,000 12,000 Pocatello, ID Green Bay, WI Knoxville, TN Redding, CA Annual kWh Usage Analysis of 3, 24-foot Circulation (HVLS) Fans Manual Control Automated Control Detailed and Tuned Automated Control 23% Savings 23% Savings 30% Savings 20% Savings
- 11. VENTILATION FANS 0 40,000 80,000 120,000 Pocatello, ID Green Bay, WI Knoxville, TN Redding, CA Annual kWh Usage Analysis of 24 Tunnel Ventilation Fans Manual Control Basic Automated Control Detailed and Tuned Automated Control 14% Savings 13% Savings 16% Savings 13% Savings
- 12. LIGHTING Must know desired lighting levels and height before getting bids Lighting layouts can help verify new lighting will meet desired lighting How reasonable are the layouts? No requirements for lighting, only recommendations
- 13. LIGHTING LAYOUT
- 14. VERIFICATION Producer should get energy savings verified by independent 3rd party Hold back of final payment installation until verification is complete If not getting what paid for equipment dealer/installer fix before receiving payment
- 15. CONCLUSIONS Producer should know what he can expect from new equipment Need to remove disconnect between energy auditor, equipment dealer, and installer Need to verify what is installed is going to give producer what is expected
- 16. QUESTIONS?
- 17. CONTACT INFORMATION Bethany Reinholtz, CEM, CWEP 608.354.0188 bethany.reinholtz@gdsassociates.com
- 18. GDS Associates, Inc. ENGINEERS & CONSULTANTS
Editor's Notes
- #8: You can say after this that you are going to show them the different energy savings between a few different sample projects that had different energy savings based upon the level of installation expertise of the installer and equipment dealer. You can also show how the type of project that has the most variable savings changes across the country.
- #9: 500 head dairy, 85#/cow/day, with VSMP Assuming milk in pipeline is at 95 degrees before hitting plate cooler. There is additional cost and control needed to get to these goals. Require larger water line, larger water holding tanks, more plumbing to livestock waterers for reuse, solenoids, etc.
- #10: 500 head dairy, 85#/cow/day, with VSMP Assuming milk in pipeline is at 95 degrees before hitting plate cooler. There is additional cost and control needed to get to these goals. Require larger water line, larger water holding tanks, more plumbing to livestock waterers for reuse, solenoids, etc.
- #11: Automated control = temp control for on/off Detailed and Tuned = temp control with VFD
- #12: Automated = thermostat for all on/off or ½ on/off Detailed and Tuned = PLC with staging in groups of 4 fans
- #13: This one is a bit different because for many ag. operations the lighting levels are only suggestions. Then you need to determine what you are aiming for at the end of the project and specify you want that performance. Bids can be drastically different in if they are producing varying levels of light. Lighting layouts should have reasonable depreciation taken into account as well as reasonable reflectance values and mounting heights