DGS-SE employs a Block & Index electricity purchasing strategy, wherein fixed rate blocks of electricity are purchased in advance, and the remainder is purchased on day-ahead and real-time electricity markets, for the DGS building portfolio’s 800+ PEPCO electric accounts. The new strategy enables the agency to integrate large-scale wind and solar supplies, while saving 5-8% on generation and transmission costs. It stabilizes anticipated electricity costs, while mitigating long-term risk over the entire purchasing time horizon.
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