The night time electric cost is cheaper due to electric supply and demand policy in Korea from 1985. Currently about 900,000 customers are using night time electric heating boilers and this causes shift of peak demand time to night in winter and increase of deficit spending. To solve this problem, replacing night time electric heating boiler by air-source heat pump using night time electricity has been proposed. An air-source heat pump can provide efficient heating equipment especially in a warm climate. For estimating the night time electric heat pump COP(Coefficient of Performance), Korean Standard KS C 9306:2010 and European Standard EN-14511:2004 is available. SCOP(Seasonal COP) using European weather bin data is also calculated. SCOP is not available yet but European Committee for Standardization will establish a standard in the near future. The evaluation result show that the replacing night time electric heating boiler by heat pump can be possible.

Abstract
 1. 서론
 2. 심야보일러 대체용 공기열 히트펌프 성능평가
  2.1 히트펌프 구성
  2.2 히트펌프 성능평가 조건
  2.3 히트펌프 성능 평가
  2.4 히트펌프 검증 평가
 3. 평가 결과
 4. 결론
 참고문헌

• 조종영(한국전력공사 전력연구원) | J.Y. Jo
• 정훈(한국전력공사 전력연구원) | H Jung
• 이철희(한국전력공사 전력연구원) | C.H. Lee