The expansion of renewable energy is to be advanced. For this purpose, a requirement for solar panels on new buildings will be introduced, a minimum rate of wind power per km², with possible adjustments to the conditions in the MGS. Building energy efficiency is also important. For this purpose, more green-powered heat pumps need to be installed. The installation will be subsidised and market incentives will be provided for this sector. Insulation and refurbishment of old building materials must pass