Start producing cooking gas and natural fertilizer from your own waste. This HomeBiogas https://homebiogas.com/ digester will process up to 4 kg of food waste a day. But even one kilo would give you one hour of cooking! 1kg (2.2 lb) of waste provides 200 liters of gas as well as liquid fertilizer. They are on facebook and can be reached by email at email@example.com
Turn household wastes (human wastes and food scraps) into clean burning biogas with $300-$400? (waiting for current price list) Biotech biogas plants, or make one yourself. Biotech also sells waste to electricity plants. Payback period is only 2-3 years. They now mass produce their biogas plants out of PVC and aim to sell one to every household in India as a standard commodity.
Our blog focuses on low cost, sustainable ways of building homes with local resources. It’s equally exciting and practical learning about alternatives to costly centralized grid systems (electrical, gas, sewer, water) that tend to lock people into the system and make them vulnerable to price controls. Biogas is one of many renewable energy systems that provide greater independence at very low cost. Biogas is especially practical in rural areas where running power and gas lines are cost prohibitive. Distributed systems such as biogas and other biofuels, solar water heaters, wood stoves, solar ovens, etc. located at or near the source typically keep functioning during times of emergencies. When a whole city or region is without power, water and sewer during a blizzard, your family can be safe and snug.