for a sustainable and better future   



for a sustainable future.

for a sustainable future.

Renewable Energy & Heat PDF Print E-mail


The biogas that is produced through the anaerobic digestion is in most cases used to produce electricity.

This is a regulated and encouraged area: The UK has signed up to the EU Renewable Energy Directive, which includes a UK target of 15 percent from renewable sources by 2020. This target is equivalent to a seven-fold increase in UK renewable energy consumption from 2008 levels.

The Government has used powers in the Energy Act 2008 to introduce a system of feed-in tariffs to promote low carbon electricity generation. This system allows anaerobic digestion projects to have a regular and increasing source of revenues starting on April 2010 while they participate to the production of renewable energy in the UK. Consequently these projects have solid and readable financial returns.

The general target for UE is 20% by 2020. Incentive legislations have been introduced everywhere to enable biogas units to become profitable entities.

Whilst biogas can produce heat and/or electricity, use of combined heat and power (CHP) generators is energy efficient.

Other uses of biogas include injection into the natural gas grid. With the cost of natural gas increasing over the decades, pumping of biogas into the gas grid becomes all the more attractive. The gas is cleaned before injection into a local or national grid, which requires economies of scale to make it viable. However a group of small scale AD plants could supply biogas to a central cleaning and injection centre.

Biogas as a vehicle fuel is also worth considering. It is already being successfully used as a vehicle fuel. After cleaning and bottling of the gas it is feasible to convert road vehicles and farm machinery to run on biogas, on its own or dual fuel with diesel/biodiesel.

Saigas is promoting this combined technology that enables private or public clients to benefit both from heat and electricity productions.


An AD generator at a Snow Leopard plant in Bavaria.
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