Temat: Dyskusja nad wymaganym PV systemem dla domu i malego...

Project layout for single-family house and commercial business

We have asked the market overview participants for typical project layouts for two exemplary applications.

Example 1 – private household: Annual usage 4,000 to 5,000 kWh (single family house with two working parents and two children, and there is no solar power installed as yet on the 70 square meter roof space.)

Result: The suggestions from participants vary vastly: Solar capacity of 3 to 11 kWp, inverter capacity of 2 to 10 kW, storage capacity of 5 to 13 kWh. According to the entries, a 30 to 90% self-consumption rate and an autarky degree of 40 to 90% can be achieved. Costs vary between €17,000 and €35,000.

Example 2 – commercial business: 15 kWp installation, annual usage 30,000 to 60,000 kWh (according to German Energy and Water Industries, BDEW, consumption profile L1, dairy farm).

Result: The suggestions vary again vastly: Inverter capacity between 6 and 15 kW, storage capacity of 10 to 40 kWh. According to the entries, a 30 to 100% self-consumption rate and an autarky degree between 10 to 45% can be reached. Costs vary between €31,000 and €58,000.

The answers come from: Akasol, Azur Solar, Frankensolar, IBC Solar, juwi, MHH, Prosol Invest, SMA, Solon, Tritec, voltwerk and Würth Solar.

Read more: http://www.pv-magazine.com/archive/articles/beitrag/st...