Berkeley Lab-EPRI study quantifies the pros and cons of multiple participation models for hybrid power plantsUtility-scale hybrid storage
, behind the same point of interconnection – creates uncertainties for system operators, who grapple with efficient and reliable ways of operating them. An immediate challenge is properly representing hybrid resources in market clearing software, which requires defining a model for their participation in wholesale power markets.
To help system operators better understand and utilize hybrid resources, Berkeley Lab is pleased to announce the release of its. By comparing the implications of different hybrid participation models in a realistic simulated wholesale electricity market, the study offers specific metrics to quantify the advantages and disadvantages of each.
, where market participants may or may not provide a single price/quantity offer for each market interval, but will submit other information so market clearing software canFig. 1: Different configurations of hybrid storage resource participation models.. The 2R model generally provides greater cost savings, but differences in efficiency across participation models were not significant for this case study..
. These depend on hybrids’ cleared energy awards and can differ considerably based on bidding strategies and battery state-of-charge considerations.. The 2R model adds greater computational complexity and solve time as the number of hybrids increases.. While the offer strategies were considered state of the art for a study environment, empirical bids from operational hybrids could help substantiate these results as hybrid resources begin to play a larger role in markets.
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