Mother Earth News has a three part series about how food waste is converted into biogas.  You can read Part 2 here, and Part 3 here.

The New Indian Express writes about the waste-to-energy revolution in Sweden where 99% of all household waste in Sweden is reused, recycled or composted.

Not only are they running their power grids from their own waste, they import over 800,000 tonnes/year of trash from neighbouring European countries like the UK, Ireland, Norway and Italy to use in their power plants. So Sweden generates heat and power for its buildings from trash and gets paid to do it!

See also care2, The Swedish Revolution: Turning 99% of Garbage Into Energy.

Finland has opened its largest waste to energy plant reports Energy Digital. Vantaa Energia opened the facility last week in Vantaa. With a generating capacity of 920 GWh, it’s expected to power 50% of district heating demands and 30% of Vantaa’s electricity. The power is produced by burning waste collected from the surrounding areas of Uusimaa, a region which includes Helsinki. It will process an estimated 320,000 tons of waste annually..

A UK firm is turning human waste into energy say RT. Severn Trent Water claims to be the first electric power company in the UK to provide biomethane gas, created by breaking down the ‘sludge’ in sewers. The sludge is a combination of human waste compounds and biodegradable matter. The gas is then put into the National Grid to help heat the nation’s homes and businesses. Other energy producers including Wessex Water and Northumbrian Water also have plans to develop a pipe to supply natural gas from sewers.

In the past, energy companies have used the method to provide electricity and heat on site, but advances in cleaning technology now mean high quality biomethane gas may be the way forward for UK households in the near future.

Meanwhile a US firm is converting potato peels into power. ALT Energy Stocks tells us about Blue Sphere Inc. which has started construction on a bio-digester and electric power generation facility near Charlotte, North Carolina that will turn potato peelings and apple cores into 5.2 MW of power. Electric utility giant Duke Energy will buy the power when the plant goes operational by the end of 2015.

From Climate Spectator we learn LMS Energy has opened a waste-to-gas generator at Swanbank Landfill at Ipwich, southwest of Brisbane in Australia. The methane gas from the landfill is expected to generate 9000 megawatt-hours a year of electricity for the country’s grid.

 

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