Tesla | Record 46.7 GWh Energy Storage Deployed in Full-Year 2025📅 January 2, 2026
Tesla deployed 46.7 GWh of energy storage products across full-year 2025, with Q4 2025 alone delivering a record 14.2 GWh — the highest single-quarter deployment in the company's history. This includes both Powerwall residential deployments and Megapack utility-scale systems, reflecting accelerating demand for Tesla's integrated solar-plus-storage offerings.
Enphase Energy | 4th-Generation Energy System Launch — IQ Battery 10C 📅 July 29, 2025
Enphase Energy launched the 4th-generation Enphase® Energy System, featuring the IQ Battery 10C, IQ Meter Collar, and IQ Combiner 6C. The system ships from US contract manufacturing facilities with domestic content that qualifies for the federal Domestic Content Bonus Credit under the IRA. The full system is backed by a 15-year limited warranty — Enphase's longest ever.
Generac | PWRmicro 820W Solar Microinverter Launch + PWRcell 2 Ecosystem 📅 September 3, 2025
Generac launched PWRmicro, an 820W microinverter designed to integrate directly with its PWRcell 2 solar battery storage system, ecobee smart thermostats, and home standby generators — forming a unified residential energy ecosystem. PWRmicro features an installer-friendly design that reduces commissioning time while maximising output from high-powered solar panels. Mintlify This follows Generac's May 2025 launch of the ecobee by Generac Smart Thermostat Enhanced with Home Energy Management, which integrates real-time solar battery monitoring with the PWRcell 2 system into a single homeowner dashboard.
Enphase Energy × Green Mountain Power | Home Battery Lease + Virtual Power Plant, Vermont 📅 November 12, 2025
Enphase announced a partnership with Green Mountain Power (GMP) in Vermont to launch a home battery lease program where customers receive backup power and share stored energy during peak usage times, feeding Vermont's largest dispatchable energy source — a 75 MW virtual power plant. The partnership also covers Enphase's upcoming IQ Bidirectional EV Charger expected in 2026, enabling EVs to power homes or export to the grid during peak demand.
Q1 2025: SunPower Secures $150 Million Financing to Expand Residential Solar Storage Offerings SunPower announced a $150 million financing round to accelerate the rollout of its integrated solar and battery storage solutions for U.S. homeowners.
Q1 2025: Enphase Energy Launches IQ Battery 5P for Residential Solar Storage Enphase Energy introduced the IQ Battery 5P, its latest home energy storage product, offering higher power output and improved reliability for residential solar customers.
Q2 2025: Tesla Signs Major Supply Agreement with Panasonic for Residential Battery Cells Tesla and Panasonic entered a multi-year supply agreement to provide advanced battery cells for Tesla’s residential energy storage products, supporting increased production capacity.
Q2 2025: Sunrun Wins Contract to Deploy 10,000 Home Solar Storage Systems in California Sunrun secured a contract with a California utility to install 10,000 residential solar-plus-storage systems, aimed at enhancing grid resilience and supporting state clean energy goals.
Q2 2025: Enphase Energy Appoints New Chief Technology Officer to Lead Storage Innovation Enphase Energy named Dr. Priya Patel as Chief Technology Officer, tasking her with advancing the company’s residential solar storage technology portfolio.
Q3 2025: Sonnen Partners with Homebuilder Lennar to Integrate Solar Storage in New Homes Sonnen announced a partnership with Lennar, one of the largest U.S. homebuilders, to equip new residential developments with integrated solar and battery storage systems.