Choosing the most suitable PV or solar thermal system for you is not always easy.
Karelia UAS has invested in number of different solar PV and thermal technologies. Sirkkala Energy Park will house five different PV panel and inverter combinations, four solar thermal collector types and one PV-T hybrid panel system.
Various different PV technologies are commercially available and the most common and the most promising ones were acquired to Sirkkala Energy Park. Silicon polycrystalline and monocrystalline cells dominate the markets with nearly 90 % market share. Monocrystalline based PV-systems have lower production and investment costs compared to polycrystalline cells, but what they gain in investment costs will be lost in efficiency in most cases. Thin cell PV technologies will be demonstrated in the form of CIGS (Copper Inidium Gallium Selenide) and amorphous silicon. There are also various emerging technologies being researched, but most of them are not yet commercially available.
Various types of PV system architectures and technologies will be demonstrated, including single panel power optimisers, panels in series with maximum power point tracking (MPPT), panels with microinverters and mobile thin cell technologies. Total gross area of installed PV will be 80 m² and total peak power over 11 kW.
Solar thermal collectors are used to produce heat by absorbing sunlight. Two types of main technologies exists; evacuated tube collectors and flat panel collectors. Total of three types of flat panel collectors with different absorber material (copper, aluminium and stainless steel) and one type of evacuated tube collector will be demonstrated. Gross area of solar thermal collectors will be 32 m².
Hybrid PV/Thermal –panels are also demonstrated to assess the feasibility of this technology. Size of the hybrid panel array will be 8 m² with peak power of 1,1 kWp.
According to Project coordinator Mr. Markus Hirvonen, after installation of solar systems the Sirkkala Energy Park will be able to provide unique information on solar energy technologies and the characteristics of each different setup.
“The different solar energy setups provide new information on solar technologies in North Karelian environment and makes it easier for consumers and companies to make good solar PV and thermal investment decisions.
Within the GREBE –project context, Sirkkala Energy Park provides new insights into the market access paths of modern RE solutions, and their business opportunities and challenges.
Sirkkala Energy Park, located in Sirkkala campus of Karelia UAS in Joensuu, is a research, development and education facility of RE technologies. The energy system established in 2015 includes different solar and wood based i.e. a modern small-scale combined heat and power (CHP) -plant fueled with locally produced woodchips.