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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    Energy Storage Solutions (ESS) Aggregate Loadshape

    Metadata Updated: February 1, 2026

    The Energy Storage Solutions (ESS) program is an incentive program designed to help Eversource and United Illuminating (UI) customers install battery energy storage systems for their home or business. The program helps lower the cost of buying a battery by providing upfront and performance incentives. This incentive program is overseen by the Public Utilities Regulatory Authority (PURA), is paid for by electric ratepayers, and is administered by the Connecticut Green Bank, Eversource, and UI.

    This time series dataset shows the aggregate "load shape", or average system power, of all batteries enrolled in Connecticut's Virtual Power Plant (VPP) as operated through the ESS program, broken down by residential or commercial host sites, at 15-minute intervals. Positive values indicate charging activity, while negative values indicate discharge to local load or the grid. Telemetry data, including historical data, is subject to ongoing quality control and quality assurance and may be updated, revised, or corrected periodically.

    More information and an interactive dashboard of this and other program data can be found at https://energystoragect.com/ess-performance-report/

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date December 20, 2025
    Metadata Updated Date February 1, 2026

    Metadata Source

    Harvested from Connecticut Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date December 20, 2025
    Metadata Updated Date February 1, 2026
    Publisher data.ct.gov
    Maintainer
    Identifier https://data.ct.gov/api/views/jjyf-pk6e
    Data First Published 2025-12-15
    Data Last Modified 2026-01-27
    Category Environment and Natural Resources
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.ct.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 1415eecd-b7eb-4685-b56f-d0d026f7a708
    Harvest Source Id 36c82f29-4f54-495e-a878-2c07320bf10c
    Harvest Source Title Connecticut Data.json
    Homepage URL https://data.ct.gov/d/jjyf-pk6e
    Source Datajson Identifier True
    Source Hash 6003f8021aa1ea0044ef2982567840c267da93a7c84c0bb0092a14463bb26268
    Source Schema Version 1.1

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