Growth of population implies the growth of need for energy. Non-renewable resources of energy, which are considered the main energy resources nowadays, will soon reach their minimum and final depletion. Main undesirable occurrence in terms of exploitation of the previously mentioned type of energy is formation of greenhouse gas that leads to environmental pollution. More developed countries are increasingly turning towards the development of the renewable resources of energy because they see their advantages, both because of the preservation of climate and environment and because of the opening of completely new branches of industry, as well as opening of direct and indirect work positions in the sector of renewable resources of energy, which also contributes to the economic development of a country. Investments and consumption should be focused towards the new, purer technologies, energetic efficiency, renewable resources of energy, green building, waste management and other sectors that are of great importance for preservation of environment. In order to enable the realization of previously listed projects, great initial investments, in which financial institutions play a great role, are required. The paper investigates present practice of business banks in Croatia in terms of promotion of usage of renewable resources of energy and energetic efficiency. Aim of the paper is to critically evaluate the role of financial institutions in promoting the usage of renewable resources of energy and energetic efficiency in Croatian economy. Aims of the research include investigating the role of renewable resources of energy in global economy, researching the economic impact of the renewable resources of energy, examining the role of financial institutions in promoting the usage of renewable resources of energy and exploring the “energetic image” of Croatian economy, as well as the role of banks in promoting the usage of renewable resources of energy and energetic efficiency in Croatian economy. For the needs of this paper, a survey was conducted in business banks via questionnaire containing thirty one question. Based on the results collected with the survey, it is safe to conclude that business banks in Croatia still do not have adequately developed awareness regarding the usage of renewable resources of energy and energetic efficiency and their influence on the development of a country and expansion of bank’s business.