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Green Bank and utilities press for faster telemetry and clearer interconnection paths for non-export batteries
Summary
Connecticut Green Bank and the state's two electric distributors highlighted data latency differences between DERMS providers and urged API connections to OEMs; utilities warned bulk conversion of non-export batteries to export would be a material interconnection change requiring study and fees.
Connecticut Green Bank staff and Connecticut's electric distribution companies told PURA technical meeting attendees that improving telemetry speed and data quality is essential if the ESS program is to rely more heavily on performance payments, and they disagreed on the feasibility of bulk-converting already installed non-export batteries to export-capable systems.
Why it matters: If enrollment or payment depends on measured export and performance, delayed or poor-quality telemetry can undermine fair payments, make performance reconciliation slow, and increase financial risk for entities that may assume up-front payments.
Green Bank managers described two separate telemetry pathways used in the program: Uplight, the DERMS provider that serves UI residential customers and the CNI sector, now delivers near-real-time telemetry to the Green Bank through an API; EnergyHub, the DERMS provider for Eversource residential territory, typically delivers monthly batched CSV telemetry files (for example, June data around July 11). "Evaluating participant…
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