Sharing a recent project we designed and commissioned, since the sizing logic might be useful to others planning storage around time-of-use tariffs.

The site is a 4 MWp agrivoltaic farm in Israel. Instead of one central battery block, we deployed **46 × 261 kWh units**, each paired 1:1 with a **50 kW hybrid inverter**, distributed across the farm (total 2.3 MW / 12 MWh, energy-to-power ratio \~5.2h).

**Why distributed?** Each unit sits next to its own section of the PV array — no central block, no long DC runs, and the farm can expand by adding units rather than committing to a big block upfront.

**Why 5 hours?** The project qualifies under Israel's "800-hour tariff": eligible PV+storage earns a premium for shifting solar into defined evening peak periods (typically 5-6 hours), with an annual threshold of 800 kWh of peak export per kW of PV. So duration was dictated by the tariff window — we sized each unit to cover the full evening peak in one daily cycle.

Commissioned May 2026, now shifting daytime solar into the evening peak daily.

Video shows the site layout and the units in place — happy to answer questions on the architecture, sizing, or tariff mechanics in the comments.

46 distributed BESS units paired 1:1 with hybrid inverters on a 4 MWp agrivoltaic site in Israel — built around an 800-hour peak tariff