Optimize PV systems: storage size, 7-day forecast and true island capability

Anyone investing in a photovoltaic system today wants to achieve maximum independence and minimal electricity costs. But standard solutions often fall short. For economical and crisis-proof operation, three factors must be optimally coordinated: the storage size, a forward-looking charging strategy and the typer Storage is never full in the winter months and never empty in the summer. This does not pay for the high investment costs.

The design of the storage size at least for the so-called daily electricity demand ensures the most economical use of the battery cycles and allows you to take full advantage of dynamic electricity tariffs in combination with a highly efficient energy management system such aseapi.com" title="SpotpriceApi.com - 7 days electricity price forecast " target ="_blank">SpotpriceApi.com) enables a much smarter charging strategy:

• • • Weekend effect: * * Electricity prices are often particularly low at the weekend due to lower industry demand. With a 7-day forecast, the system can already decide in the middle of the week to use the memory for cheap charging windows forjust one phase in the house.

In the Austrian power grid, however, households are connected in three phases as standard. Important large consumers such as heat pumps, cooktops or the well pump need a real three-phase field (3 phases).

• Single-phase emergency power: Only selected light circuits work. The heater will remain cold in an emergency.
• Three-phase island capability: The inverter disconnectsreal crisis preparedness.