The aim of the proposed project is to carry out construction and assembly works aimed at the energy modernisation of a public utility building located at ul. Żeromskiego 25 in Iłowa, used by Zakład Gospodarki Komunalna Sp. z o.o. and by the Municipal Office in Iłowa (currently located in the facility are the Department of Investment and Public Procurement and the Department of Environmental Protection and Spatial Planning). As part of the project, therefore, the planned construction works resulting from the attached energy audit, i.e.: - insulation of the building partitions, - replacement of window and door joinery (external), - installation of window ventilators, - modernization of the domestic hot water preparation system (replacement of the heat source with an air heat pump with an integrated storage tank), - modernization of the heating system (installation of an air heat pump, insulation of the central heating system, monitoring and energy management system), - expansion of the existing photovoltaic installation by 2 kW. In addition, elements not resulting from the energy audit will be implemented. In this respect, the project includes the replacement of lighting with energy-saving LED lighting. Other tasks planned in the project are complementary and include the implementation of preparatory works (energy audit, technical documentation, nature inventory, preparation of this application for co-financing), investor supervision, project promotion (poster, marking documents with appropriate logos, placing information on the implementation and co-financing of the project on the website and in social media). There is also a task on indirect costs. By the time the project application was submitted, the above-mentioned preparatory works had been completed. The works were notified (no objection was raised by the relevant authority). In this way, all decisions and permits necessary for the implementation of the project were obtained. The basic need for the project is low energy efficiency of the facility. The potential for improvement in this area is indicated by the energy audit. The planned improvement of the energy efficiency of the project facility, which is the main objective of the project, is expressed in energy savings (both at the level of primary energy and final energy) that can be achieved through the implementation of the investment. The relevant indicators are presented in Section C of this proposal. Improving the energy efficiency of the facility covered by the project, which will be achieved through the implementation of the investment, will also result in the following effects, important for individual target groups of the project: 1) Reduction of harmful emissions to the atmosphere. In particular, carbon dioxide is one of the main greenhouse gases (estimated change in CO2 emissions as a result of the project is presented in section C of this proposal). 2) Reducing the operating costs of the building and, more specifically, the energy costs necessary for its operation. The potential in this respect is presented in the attached energy audit (point 2.8.1.7 of the audit charter). It should be noted that all energy improvements resulting from the audit are selected from various options of improvements based on the financial indicator, which is SPBT (simple pay back time). 3) Improvement of thermal comfort is crucial from the point of view of the users of the facility, although it is difficult to measure the effect of the investment. The improvement of insulation of individual partitions results not only in the improvement of thermal comfort in winter, but also in the summer.