The facilities operated and supported by Advantage Biogas range in size from 0.20MWe to 3.5MWe, processing a mix of agricultural wastes, crop based feedstock, liquid and food wastes. Many of the facilities are permitted by the Environment Agency and we have a number of staff that can offer technically competent management (TCM) support.
Anaerobic Digestion, or AD is a natural, biological process where bacteria breaks down organic waste without the need for oxygen, it occurs naturally in swamps and bogs and has been used for many years in rural village communities in China and India where the re-cycling of nutrients in farm manure occurs in small scale plants to provide essential cooking and lighting.
An AD site replicates this on a larger scale in a temperature controlled, sealed environment. The biogas produced is captured and used as a fuel in a combined heat and power unit (CPH), this renewable energy source produces heat and electricity, the heat can be used by local consumers and the electricity can be fed into the national grid.
Combined heat and power (CHP) systems, also known as cogeneration, generate electricity and useful thermal energy in a single, integrated system.
CHP is not a technology, but an approach to applying technologies. Heat that is normally wasted in conventional power generation is recovered as useful energy, which avoids the losses that would otherwise be incurred from separate generation of heat and power. While the conventional method of producing usable heat and power separately has a typical combined efficiency of 45 percent, CHP systems can operate at levels as high as 80 percent.