The project concerns improving the energy efficiency of the public utility building – Local Government Kindergarten with Polish and Lithuanian Teaching Language in Puńsk. The investment shall include: 1. Improvements in the building’s body (reducing heat loss through penetration and ventilation): a. warming of the outer walls, b. warming of the ceiling under the attic, c. roof warming, d. warming of the foundation walls, 2. Improvements in the building heating system (reducing heat consumption): a. modernisation of central heating system, heat node and heat source replacement, b. modernisation of central heating system assisted by PV installation, c. installation of mechanical ventilation system with heat recovery. 3. Lighting aid with a photovoltaic installation. In addition, the project included expenditure on the promotion of the project (ineligible cost). The aim of the project is to improve the energy efficiency of the public utility building – Local Government Kindergarten with Polish and Lithuanian Teaching Language in Puńsk. The investment shall contribute to the achievement of the following indicators: 1. of the product: — Reduction of annual primary energy consumption in public buildings – 646986,60 kWh/year; — Estimated annual reduction in greenhouse gas emissions – 207.07 tonnes of CO2 equivalent; — Number of energy-upgraded buildings – 1 pieces; — The usable area of buildings undergoing thermal upgrade – 692,77 m²; 2. the result: — The amount of thermal energy saved – 2 335,36 GJ/year; — The amount of electricity saved – 2,48 MWh/year. The RES energy produced by the project will be used exclusively for its own needs.