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Solar panels for detached houses

Solar power plants will remain in Helen's service offering, but in the future, our long-term installation partner Aurinkotekniikka will also be responsible for the sales of solar power plants to consumer customers. Aurinkotekniikka independently sells solar power plants, which enables them to handle sales, customer service, and product management tasks.

Order a solar power plant for your home through our partner

Aurinkotekniikka If you have any questions regarding solar power plants, you can contact Aurinkotekniikka using the form available on their website.

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Frequently asked questions about solar electricity and small-scale generation

Helen AI-assistant will answer immediately.

Frequently asked questions about solar panels

Selection of a panel package

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  1. A three-phase system will distribute the production across all the electricity-consuming phases in your home, which means that a larger share of your production goes to your own use. In the future, air-source heat pumps and electric vehicle charging points may increase your home’s electricity consumption. Because of this, a single-phase system is not a cost-effective option in the long term.
  2. High-quality components guarantee ease of use. In the long run, cheap parts will cost you more. High-quality manufacturers also provide better and faster service in the event of faults or breakage.
  3. We recommend acquiring your panels from a reliable company that is sure to remain in business for the entire lifecycle of your solar power system. A good salesperson will answer any use-phase questions you may have, handle your warranty issues, if necessary, and enable you to expand your system and add new products to it.

In southern Finland, the annual output of a 1,100 Wp solar power system at a 30–45-degree angle amounts to about 900 kWh per year. The total annual output in the southern parts of Finland is about the same as in northern Germany. Use our calculator to see your output potential.

Annual amount of solar radiation (click to open the picture)

Wp refers to the system’s maximum capacity in watts and kWp in kilowatts.

In the solar power survey, we will scale the system to meet your needs. The most beneficial way to use a solar power system is to set it up in a way that all the energy produced goes to your own use. Because of this, the survey is carried out on the basis of your home’s electricity consumption during a summer day.

A three-phase system will distribute the production across all the electricity-consuming phases in your home, which means that a larger share of your production goes to your own use. Moreover, air-source heat pumps and electric vehicle charging points may increase your home’s electricity consumption in the future. Because of this, a single-phase system, in other words a system that only provides electricity for one phase in your home, is not a cost-effective option in the long term.

Solar panels come with an inverter. This is a device that transforms the DC power produced by solar power into AC power so that it can be used at home and fed into the grid.

HJT stands for Heterojunction Technology. In HJT solar panels, the silicon cells are surrounded by a layer of amorphous silicon. HJT is new-generation technology that started to gain in popularity in 2023. The technology offers more reliable performance, better and improved heat resistance in solar panels.