Shtigen LLC in cooperation with the Ministry of Nature Protection of RA and with the support of Caucasian Nature Fund mounted solar energy systems on rooftops of Arpi Lake SNCO. Two different solar systems were installed. Solar PV system of 20kWp will generate 32-34 MWh electrical energy annually for over 25 years, saving 1,400,000 AMD ($2,900 USD) every year. This system will reduce carbon emissions by about 15 tons.