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OUR COMPANY

We’re On A Mission To Provide Quicker Electrification For Everyone

Our meter socket adapters are the bridge connecting homeowners to fast, affordable electrification—and installers to a safer, more efficient workday.

ConnectDER's founder Whit Fulton stands next to a graphic of a massive meter socket adapter.
  • +Devices installed nationwide
  • StatesActively installing
  • UtilitiesApproved for use
"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder"ConnectDER's meter socket adapter is an installer's dream." — Solar Builder
Image of the Philadelphia skyline with tall buildings, the liberty bell, and the famous statue.
Our Story

Born In Philly, Built For The Nation

From the birthplace of America to every corner of the map, ConnectDER helps accelerate the adoption of renewable energy solutions—one meter socket at a time.

  1. 2011
    2011

    Infinite Invention, LLC is founded by Whit Fulton after receiving a grant from the Department of Energy's SunShot Incubator program. The goal: Develop a plug-and-play, at-the-socket solution to help solve the complexity and poor economics of distributed energy system installations.

  2. 2013
    2013

    Fulton and team are instrumental in helping develop new UL (Underwriters Laboratories) standards around the use of meter socket adapters, including supplements A, B, and C to UL 414 that remain the blueprint for all manufacturers to follow.

  3. 2014
    2014

    After years of development, iterating, field-testing, and collaborating with installers and utilities, the company's first device "The ConnectDER" hits the market in Vermont, with approval from Green Mountain Power to install behind the utility-owned billing meter.

  4. 2015
    2015

    The company launches a new SMART version of its Solar Meter Socket Adapter (MSA) with intelligence and connectivity functionality, expanding its market use cases and securing additional utility approvals.

  5. 2016
    2016

    Infinite Invention, LLC changes its name to ConnectDER and secures its first major round of funding, a $1.1M Series A. ConnectDER scales its R&D and manufacturing, utility and market opening initiatives, and customer growth.

  6. 2017
    2017

    ConnectDER surpasses 10,000 devices installed on homes thanks to major utility adoption including programs in Hawaii, New York, Pennsylvania, Arizona, and more.

  7. 2019
    2019

    Utilities nationwide have approved ConnectDER's Solar MSA, with more than 20,000 devices installed.

  8. 2023
    2023

    After a $7M Series B funding round in 2020, ConnectDER receives an additional $27M Series C investment to scale operations, expand its workforce, and launch new products aimed at simplifying renewable energy installations beyond just rooftop solar.

  9. 2024
    2024

    ConnectDER secures a $35M Series D round of funding from BlackRock and Temasek's joint venture, Decarbonization Partners, and appoints Ivo Steklac as President & CEO; Founder Whit Fulton becomes Chief Product Officer. The company launches its EV MSA for panel upgrade avoidance on at-home charger installs, and its IslandDER™ MSA for easier solar-plus-battery installs.

  10. 2025
    2025

    ConnectDER partners with leading battery manufacturers for integration with its next-gen IslandDER™ MSA including FranklinWH, Lunar Energy, EcoFlow, Fox ESS, and SolarEdge—with 20 others under agreement for future integration. The company expands its executive team with new appointments to Chief Revenue Officer, Chief Financial Officer, Chief Operations Officer, and VP of Sales & Marketing.

  11. 2026
    2026

    ConnectDER receives device approval from California's "Big Three" utilities (SCE, SDE&G, and PG&E) reaching availability in more than 60% of the U.S. residential market and surpassing 40,000 total devices installed across the country.

PRODUCT DEVELOPMENT

Pioneers—& Perfectionists—Of The Meter Socket Adapter For The Last 15 Years

Patented product designs with years of iterative development based on field feedback from utilities and installers.

  1. IslandDER™ v1 – Digital

    Digital Ethernet Communication
    2026
  2. IslandDER™ v1 – Analog

    Microgrid Interconnect Device (MID)
    2025
  3. Solar MSA Data Out (D.O.)

    Integrated CTs
    2025
  4. EV MSA v1

    EVSE Interface
    2024
  5. Solar MSA v5.2

    Reversible Connection Module
    2023
  6. Solar MSA v5.1

    Mechanical Improvements
    2023
  7. Solar MSA v4

    Redesigned Form Factor
    2021
  8. Solar MSA v3

    Junction Box On Top
    2017
  9. Solar MSA v2

    Smart Capabilities
    2015
  10. Solar MSA v1

    Connection On Bottom
    2014
The ConnectDER team standing in their office in Philadelphia, PA.
OUR EMPLOYEES

Join ConnectDER

We’re looking for innovative, diligent, and open-minded individuals who share our belief in the power of technology and the role clean energy will play in the future of our planet.

Openings
Investors

Backed By Goliaths In Renewable Energy & Technology

Funding
  • Virginia Velocity Tour logo.
  • Clean Energy Ventures logo.
  • Skyview Ventures logo.
  • Avista Corp logo.
  • Prime logo.
  • E8 logo.
  • Sunshot logo.
  • Joules Accelerator logo.