ConnectDER

About

Founded in 2011, ConnectDER is a private headquartered in Philadelphia, United States specializing in Solar, Energy Storage.

ConnectDER is a manufacturer of meter socket adapters (MSAs), also called meter collars, designed to streamline the installation of residential distributed energy resources (DERs) including solar PV systems, battery energy storage systems (BESS), EV chargers, heat pumps, and vehicle-to-home systems. The company's products—IslandDER MSA, Solar MSA, and EV MSA—connect between the utility meter socket and billing meter, providing safe, code-compliant interconnection points without requiring main panel upgrades, service replacements, or complex electrical rewiring. All products are tested and listed by ETL (Intertek) to UL 414 standard and comply with the National Electric Code. The IslandDER MSA functions as a Microgrid Interconnect Device (MID), enabling whole-house or partial-home backup during grid outages. The Solar MSA supports grid-tied PV systems up to 15.36kW on an 80A breaker and enables net metering. The EV MSA is engineered for 100A and 125A electrical services, integrating load management and automatic disconnect capabilities. Installation time is typically 15-30 minutes, with reported savings of $2,500-$5,000 per installation compared to traditional electrical work. ConnectDER has secured approvals from major utilities across the United States including PG&E, SDG&E, SCE, ComEd, and Ameren.

Products

Certifications & Awards