Journal
JOURNAL OF THE JAPAN INSTITUTE OF ENERGY
Volume 100, Issue 11, Pages 263-272Publisher
JAPAN INST ENERGY
Keywords
Demand response; PV curtailment; Cogeneration; Air-conditioning heat source; Commercial buildings
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This study aims to evaluate the impact of distributed energy resources responding to Demand Response (DR) in reducing PV curtailment and increasing energy efficiency. The results indicate that DR has the potential to utilize over 40% of estimated PV curtailment in both Kyushu and Tohoku electric power tube areas.
Recently, the introduction of renewable energy, especially Photovoltaic power generation (PV). has been increasing. On the other hand, it has been pointed out that there might be lack of adjustment capability in the grid system. As a countermeasure, Demand Response (DR) is expected to contribute to the adjustment of supply and demand. The objective of this study is to quantitatively evaluate the reduction of PV curtailment and energy efficiency when distributed energy resources respond to DR. which increases electricity demand when PV generates excess power. Specifically, when PV generates excess power, the cogeneration system is stopped and Air-Conditioning (A/C) heat sources is switched from fuel-based to power-based to increase power demand while maintaining the A/C function. Three types of commercial building were examined, which results were combined with Geographic Information System (GIS) database to estimate regional DR potential in Kyushu electric power tube area and Tohoku electric power tube area. The results imply that DR can utilize more than 40% of the estimated PV curtailment in both regions.
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