Self-Sufficiency

Self-Sufficiency uses as much of your own solar as possible and buys as little as possible from the grid. It needs no tuning, so it is the natural start for an ordinary solar and battery system.

The battery fills with solar the site doesn't use, and covers the site when the panels can't, keeping grid import close to zero. If later hours will be noticeably more expensive, SEMS keeps energy back for them.

What it won't do

Self-Sufficiency never buys from the grid to fill the battery and never discharges it to sell; the battery serves your own consumption. Solar the battery can't take is exported only if export is allowed and it earns your Minimum net profit (ct/kWh), otherwise it is turned down.

For cheap night-time charging, see Home Tariff; if the battery may also earn on the market, Savings usually fits better.

What you need

A battery, solar, and a meter at the grid connection. Prices help, but a flat price works too.

Settings

Only the shared settings. In Advanced mode the panel shows the values read from your inverter and battery, such as Battery power limit, SOC limits and Grid limits, so you can check them.