Figures from the government and the biogas industry show that generating gas from waste can produce cheaper energy in the short term with fewer carbon emissions than current controversial hydraulic fracturing projects.
One reason biogas has received less attention is that it falls between three government departments – energy, environment and communities and local government.
"We are looking into being able to produce biogas from our animal waste," said a spokesperson for the zoo, "It's something we're seriously looking at".
In 2010-11, there were more than 2,600 jobs in the biogas sector, which could also be turned to at least 35,000 green jobs with the necessary investment, according to the Department of Environment, Food and Rural Affairs.
Gas from organic sources is, according to people in the biogas industry, slightly cheaper than imported fossil gas, in part because of government incentives.
If his government put half as much effort into incentivising green energy like biogas as it does into foisting fracking on communities that don't want it, the UK would be well on its way to long term energy security.
It aims to use the animals' digestive ruminations to create biogas that can be burned to generate electricity.
We want to turn it into biogas so that we can tackle the energy crisis".
At the bottom of the centre they offer hot showers powered by biogas, and the first floor is let out as a legal advice centre.
Apple's Maiden data centre in North Carolina is powered by a large 20MW solar farm and biogas fuel cells.
Using biogas from waste could save the UK at least 7.5m tonnes of carbon dioxide a year, according to Matthew Hindle, policy manager at the ADBA.
