[3][4][5] Enphase founder Martin Fornage discovered this issue when he saw the low performance of the central inverter for the solar array on his ranch.

Fornage was looking for a new opportunity after the 2001 Telecoms crash and brought an idea to build micro-inverters to his former Cerent Corporation colleague, Raghu Belur, and they formed PVI Solutions.

The two hired Paul Nahi to be CEO at the end of 2006 and the trio formed Enphase Energy, Inc. in early 2007.

[9] Enphase experienced leadership changes in September 2017 when the President and CEO, Paul Nahi, announced his resignation from the company.

[13] In 2021, Enphase completed a series of acquisitions that focused on software-as-a-service and home electrification: Sofdesk's Solargraf, a software platform offering digital tools and services to support the sales process for solar installers;[14] the Solar Design Services business of DIN Engineering Services, a software service provider for solar proposal drawings and permit plan sets;[15] 365 Pronto, a software platform that connects solar installers with operations and maintenance providers;[16] and ClipperCreek, a company that offers electric vehicle (EV) charging solutions for residential and commercial customers in the U.S.[17] Also in 2021, the company launched its eighth-generation microinverter technology, the IQ8 series, to customers in North America.

[2] In 2022, Enphase completed the acquisition of SolarLeadFactory LLC, a company that provides leads to solar installers.

The microinverter(s) in the Enphase battery products are the same units as installed on the roof, with only software settings changed.

The M190 had a slightly higher power rating of 190 Watts, but in a much smaller case with built-in cable connections replacing the earlier compression fittings.

The next-gen Envoy-S[24] offers revenue-grade metering of solar production, consumption monitoring, and integrated Wi-Fi.

[26] Since 2017, Enphase has been offering its "IQ" series microinverters which use a simplified cabling system with two conductors (down from four) that eliminated the need for a neutral line.

This chip is built in 55 nm technology with high-speed digital logic and has fast response times to changing loads and grid events, alleviating constraints on battery sizing for home energy systems.

[28] In 2020, the company introduced the Enphase Encharge storage system, now known as the IQ Battery, to customers in North America and expansion into parts of Europe began in 2021.

[30] In 2021, Enphase Energy Systems added the option of including software to integrate most AC home standby generators.