Lunar Energy Unveils 13.4-kW Home Battery and 25-kW EV Charger

• Lunar Energy unveiled a next-generation Lunar System with a 13.4-kW inverter and 10-30 kWh of storage per battery tower.
• Its new Lunar Fast Charger is a bidirectional DC charger rated at up to 25 kW that plugs into the battery's DC side.
• The system reaches customers in early 2027 and the charger in mid-2027; Lunar did not publish prices.

Lunar Energy unveiled the next generation of its Lunar System on Nov. 11, pairing a 13.4-kW inverter with home batteries of 10 to 30 kWh per tower. The company also introduced the Lunar Fast Charger, a bidirectional charger for electric vehicles rated at up to 25 kW, it said in a blog post.

Towers placed side by side reach 300 kWh. The system works with new residential solar, an existing array or no solar at all. A pad-mounted version for businesses fits 1 MWh into four parking spaces.

The charger plugs into the DC side of the Lunar Battery, so no extra grid-interfacing device is needed. Its spec sheet lists a DC output of 200 to 500 volts, up to 60 amps, and CCS and NACS connectors. Lunar says it adds roughly 100 miles of range in an hour. In an outage, a compatible EV can help power the house for days. Lunar said it will help owners join vehicle-to-grid programs as utilities launch them, but named none.

The system in numbers

• 10 towers of 30 kWh side by side make up the 300-kWh maximum per home (list.solar calculation).
• 29.6 kWh a day bought by the average US household in 2022, from EIA's 10,791 kWh a year, or about one full tower (list.solar calculation).
• About 10 days of average US household use would fit in the 300-kWh maximum (list.solar calculation).
• 3.5 times the power of most home Level 2 chargers: 25 kW for the Fast Charger versus 7.2 kW, per the Energy Department (list.solar calculation).
• 12.5 years of battery warranty, and 15.3 kW of maximum AC power off-grid, per the spec sheet.

Lunar AI, the company's battery energy management tool, picks when to store, use or export power based on household demand, tariffs and weather. California customers using it saved an extra $338 on average last year compared with a standard battery mode, Lunar said. Its Gridshare virtual power plant platform links more than 150,000 devices and delivered over 112 MW in California on Oct. 5.

In Texas, an Octopus Energy program pairs a Lunar Battery with a three-year fixed-rate plan and no upfront battery cost. PenTex Energy, a Texas cooperative, will deploy 10 MW of Lunar batteries.

The new Lunar System will begin reaching customers in early 2027, followed by the Fast Charger in mid-2027. Lunar did not publish prices.