What is another word for free energy?
Pronunciation: [fɹˈiː ˈɛnəd͡ʒi] (IPA) 
The term "free energy" has been used to describe a variety of alternative energy sources and systems that can produce usable energy without relying on traditional fossil fuels. Some synonyms for "free energy" include clean energy, renewable energy, green energy, and sustainable energy. These terms are often used interchangeably and refer to technologies that harness energy from sources such as solar, wind, hydro, geothermal, and biomass. The development of free energy technologies has gained momentum in recent years as the world looks to reduce its carbon footprint and find practical alternatives to fossil fuels.
