There are several ways to improve the energy rating of your home. These can be summarised in four points.
Thermal insulation is one of the most effective ways of reducing energy consumption. By improving the insulation of your walls, roof and attic and opting for double- or triple-glazed windows, you can increase protection against the cold in winter and prevent overheating in summer. In this way, you reduce your energy requirements and help reduce greenhouse gas emissions. In other words, the better the insulation, the greater the impact and the higher the level of State aid. If you use environmentally-friendly insulation materials, you may be eligible for additional grants.
Better ventilation can also be good for your budget. Instead of regularly opening your windows, install a controlled mechanical ventilation system (CMV). This will automatically ventilate your home, eliminating superfluous humidity, reducing the risk of mould and recovering heat from stale air to warm fresh air.
More efficient heating and cooling systems, such as heat pumps, high-efficiency boilers or low-energy air conditioners, will also help you reduce your gas and electricity bills, while benefiting from State aid.
Producing clean electricity from the sun is another option to consider. By installing solar panels you benefit from inexhaustible, renewable, low-carbon energy. What's more, according to the Klima Agency, the energy payback period for solar panels (the time needed for a solar panel installation to produce the same amount of energy as was required to manufacture it) is generally less than two years.