Renewable energy
2026 home battery guide: costs, sizing, and top systems for homeowners and pros
...TOU) or peak rates, a battery becomes a profit center. By charging during off-peak hours (often overnight) and discharging during peak hours (typically 4 PM to 9 PM), you can avoid the most expensive electricity.
In some regions, like Ontario, California or Massachusetts the spread between ultra-low overnight rates and...
