HomeBiogas is one of several successful projects to come about from Kickstarter. The Israeli- based company, which began its crowdfunding efforts in 2015, focuses on turning your everyday food waste into energy for your home. How do they do it? With compact, household-sized biogas digesters, which support the natural process of anaerobic digestion — in other words, a process with zero oxygen and hungry bacteria that are ready to dive into last week’s moldy bread.