12 Solar PV Systems
317
Fig. 12.8 PV installation in Kandersteg (CH) with multi-String PV inverters (Photo Muntwyler)
• The losses due to Inverter, DC- and AC cable losses, typically between 10 and
15%.
With this information we can calculate the AC-production of the PV plant. This
is often expressed as the specific annual yield [kWh/kW p ]. Typical values are: “800–
1200 kWh/kW p ” for Europe and places in the northern and southern hemispheres.
Sunnier places get from “1200 kWh/kW p ” up to more than “2000 kWh/kW p ”. For
detailed calculations there is extensive calculation software, which offers additional
options.
12.4.2 Planning Grid-Connected PV Plants
There are different ways to start the planning. We have to consider:
1. The amount of available space
2. The budget
3. The electricity consumption during the day
4. The maximum power of the cable of the grid, into which we want to inject
electricity
5. The orientation and inclination of the PV field
317
Fig. 12.8 PV installation in Kandersteg (CH) with multi-String PV inverters (Photo Muntwyler)
• The losses due to Inverter, DC- and AC cable losses, typically between 10 and
15%.
With this information we can calculate the AC-production of the PV plant. This
is often expressed as the specific annual yield [kWh/kW p ]. Typical values are: “800–
1200 kWh/kW p ” for Europe and places in the northern and southern hemispheres.
Sunnier places get from “1200 kWh/kW p ” up to more than “2000 kWh/kW p ”. For
detailed calculations there is extensive calculation software, which offers additional
options.
12.4.2 Planning Grid-Connected PV Plants
There are different ways to start the planning. We have to consider:
1. The amount of available space
2. The budget
3. The electricity consumption during the day
4. The maximum power of the cable of the grid, into which we want to inject
electricity
5. The orientation and inclination of the PV field