Frequently Asked Questions

Is it profitable to install solar panels in Sweden?

Yes, if the solar plant is facing south, southwest or southeast with a tilt angle between 15-50 degrees. The life cycle of the panels are more than 30 years and most installations gives a positive cash flow after 12-15 years, depending on the invested cost of the installation.

What does the shortening mean: kWp, kWt, kWh?

kWp = kilowatt peak = the peak effect of the panel at 25°C and a solar irradience of 1000W/sqm. You can measure this in laboratories and the value underpins the pricing of the panel.

kWt = kilowatt topp = Swedish for kilowatt peak

kWh = kilowatt hour = the amount of energy that is produced from a solar plant. For example, a solar plant of 1kWp with optimal location in Stockholm can produce around 1000kWh in one year.

Can you install solar panels on all types of roofs?

Yes, there are mounting solutions for almost all types of roofs, from flat roofs to pitched roofs with all different types of roofing.

How much space does a solar plant take?

A solar plant requires about 7sqm/kWh.

How large must the solar plant be for it to pay?

Dimension the plant so that you use all electricity produced and that any surplus is included in the tax reduction rule. A larger plant provides a lower price per kWt, but the property where it is installed will have to consume all the solar power for best economy

What happens with the solar plant during winter?

The solar plant does not produce any power when they are covered with snow. However, in Sweden, only about 9% of the annual output comes from months of snow. Therefore, it is recommended to let the snow melt and slide away by itself as there is a risk of damage to the modules if you scrape away the snow and that could be very costly.

 

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