If you want to take advantage of the sun’s energy it doesn’t mean you have to have solar panels on your roof. Using passive solar design principles, your whole house can be designed in such a way that the sun helps to heat and light your house – without the use of panels, fans, or other mechanical equipment. You can reduce your energy costs because you’re using the sun as a source of free energy.
The heating, ventilation and cooling (HVAC) system in your house represents the biggest chunk – up to 44% – of your utility bill. In addition, HVAC-related carbon dioxide emissions amount to 150 million tons a year. So if you want to reduce your carbon footprint and decrease your energy costs, the HVAC system is a great place to start. By implementing energy-efficient HVAC practices and replacing your system with a more efficient one, you can reduce your energy costs by 20 to 50%.