ConnectDER
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ConnectDER meter socket adapters approved by Pepco for installs in the Washington DC area
ConnectDER makes meter socket adapters, also known as meter collars, for solar, battery storage and EV charging, which connect at the existing meter socket outside a home and can avoid a service panel upgrade or added service capacity. The devices are UL-listed and National Electrical Code compliant, with approvals now in 54 US utility service territories, the latest being Pepco, which serves the Washington DC area. The company says its EV MSA can allow a high-power charger to be added without upgrading an existing 100-amp panel, as reported on 1 November 2026.
Why it matters
Avoiding panel upgrades can cut cost and installation time on residential charger projects, which matters to installers and programme buyers working on home charging. Utility approval in the Washington DC area opens another market where this approach can be specified.