The Law has as its objectives to strengthen the rational use of energy, renewable energy deployment, and energy substitution. Decisions specific to renewable energy include: - Mandatory use of solar water heaters in new public buildings; - Optimizing a profitable use of photovoltaic energy in various fields; - Enhancing the use of wind energy for electric power generation; - Encouraging energy capitalization of waste and geothermal waters. Tax and financial incentives related to the development of renewable energies included in the decree are: - Subsidies for demonstration projects ranging up to 50% of the cost, with a maximum of TND 100,000; - Subsidies for investments of 20%, with a maximum of TND 100,000 for solar water heating projects. IEA/IRENA Global Renewable Energy Policies and Measures Database © OECD/IEA and IRENA, [November 2020]