The cost of solar panels has fallen dramatically, making them an increasingly economic source of power. When the sun rises, the Caldera system can immediately convert electricity to heat. Later in the day, when generation outstrips demand, the excess energy can be stored for use at night.

Many sites have the potential to go beyond rooftop solar. By leasing land, such as unused fields from farmers, and implementing a ‘private wire’ connection, you can install renewables solar array as far as 2km away from your facility. Most of the energy generated will be used to provide heat, but the large solar array is also a good source of year-round electricity for the site. This approach cuts both electricity and gas bills.

Local distribution grids often limit the amount of solar that can be connected, and expanding the connection is unaffordable or impossible. Caldera’s technology allows for an unlimited amount of solar to be fitted. If local wind energy is available or if lower-cost electricity can be tapped from the grid, these can also power the Caldera system.