How to use smart metering to improve the efficiency of electric system operation
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The document discusses the use of smart metering to enhance electric system efficiency, emphasizing load control's benefits such as reduced CO2 emissions and less need for new investments. It presents various data on Spain's electricity demand, wind power production, and households' energy consumption patterns. Additionally, a survey from the Emeríe project indicates favorable public attitudes towards remote load control and demand-side management programs.
How to use smart metering to improve the efficiency of electric system operation
- 1. International workshop smart metering 10/10/2007 - Bruges How to use smart metering to improve the efficiency of electric system operation Carmen Rodríguez Villagarcía R & D Project Director, carmenrodri@ree.es Red Eléctrica de España. www.ree.es
- 2. 2 RED ELÉCTRICA DE ESPAÑA The value of load control for the electric system efficiency Source: Red Eléctrica de España. The Spanish Electricity System 2005 Maximum demand day, hourly load curve
- 3. 3 RED ELÉCTRICA DE ESPAÑA The value of load control for the electric system efficiency Translating consumption from System peak periods to valleys implies: •Less CO2 emissions from the peak generation mix •Less grid energy losses •Less need for new generation and grid investments •More security of supply •The added loads in the valley absorb the excess of irregular wind power production Source: Red Eléctrica de España. The Spanish Electricity System 2005 Maximum demand day, hourly load curve
- 4. 4 RED ELÉCTRICA DE ESPAÑA Monotonous wind power production in Spanish the system Wind power output peaked to its highest value only for a short period of time. 100 times a year, the variation during two consecutive hours of power delivery reached 2% of system demand. Size of peak load and wind power main triggers Hourly energy demand in the 300 hours of higher consumption. Spanish system monotonous power curve For these 300 hours alone the system needed up to 3.000 MW of additional capacity of generation and grid adequacy in 2006 Monótona de producción de eólica 2006 Spanish peninsular syistem WIND power production Monotonous 0 1000 2000 3000 4000 5000 6000 7000 8000 9000 1 623 1245 1867 2489 3111 3733 4355 4977 5599 6221 6843 7465 8087 8709 Horas Hours GW Source: Red Eléctrica de España 2006
- 5. 5 RED ELÉCTRICA DE ESPAÑA Households operable capacity Considered all the loads as interruptible with the exception of the cooker, oven, lighting, TV and miscellanea. The top of load management in the residential sector reaches 4.000 MW in the winter average peak. 0 2 4 6 8 10 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 GW Lavadora /Washing machine Secadora/ Dryer Lavavajillas/Dishw asher Frigorífico/Refrigerator Congelador/Fridge Iluminación/Lihgting Calefacción/Sapce heating Bomba de calor/ Heat pump Aire Acondicionado/Air conditioning Agua sin acum/Water heating Agua con acum/Storage W. H. TV Cocina/Cooker Horno/Oven Stand-by Miscelanea Consumo de los hogares peninsulares Invierno laborable 2006 Peninsular households hourly comsumtion in an average w inter labour day 2006 Consumo de los hogare s pe ninsulare s Ve rano Laborable Summe r labour day 0 2 4 6 8 10 12 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Milesdemillones Lavadora Secadora Lavavajillas Frigorífico Congelador Iluminación Calefacción Bomba de calor Aire Acondicionado Agua sin acum Agua con acum Televisión Cocina Horno Stand-by Miscelanea Refrigerator Heat pum p TV W . Machine Fridge Air conditioning Cooker Dryer Ligting W ater heating Oven Dishwasher Space heating Storage W. H. Source: Red Eléctrica de España EMERGIE Project 2006
- 6. 6 RED ELÉCTRICA DE ESPAÑA Pay attention Red Eléctrica EMERGÍE project 2006 survey found wide favourable attitudes The questions and answers were: Remote load control half an hour, several pieces of equipment, paid as a service provided, 100E a year, PLC and intelligent plugs as infrastructure; 55% declared in favour. Remote load control half an hour, override permitted, several pieces of equipment, paid as a service provided, less (not defined how much less) than 100E a year, PLC and intelligent plugs as infrastructure; 57% declared on favour. A domotic system would sift consumptions from expensive periods to cheaper ones, that option would reduce the electricity bill. (Not defined which quantity of reduction); 62% declared in favour. The attitudes towards participating in new DSM programs? Source: Red Eléctrica de España EMERGIE Project 2006