INDUSTRY NEWS
Ltd, started up the Kymijärvi II plant, which is the world’s first gasification power plant running purely on sorted waste, in other words, solid recovered fuel (SRF). It produces 50 MW of electricity for the national grid and 90 MW of district heat for Lahti and its neighboring areas. According to the company’s experience, gasification is the most energy- efficient way to utilise waste. In Lahti, a new supply chain has been born around waste. Fuel payments have created a new market for fuel preparation, and the quality of SRF has improved. Tighter quality control also benefits other SRF users such as companies recycling metals. Fuel suppliers have been able to invest in new machinery and operations have created approximately 100 new jobs in the supply chain. The CO2 emissions were cut by 30 % from 2011 to 2012, which is remarkable for a plant that has operated only since April, 2011. The company’s goal is to reduce CO2 emissions to half from the 1990 level by 2025 and help the
city of Lahti to seek the role of the leading green city in Finland.
Greener future
All forms of renewable energy are needed to reduce greenhouse emissions and plan for a greener future. In addition to waste, the local renewable fuels such as various biomasses are the most economically viable way – they generate both heat and electricity, are locally available and benefit the local economy. With today’s technology, biomass can also replace coal in existing coal-fired plants. Such a plant was recently started up in Vaasa, Finland. The local energy company, Vaskiluodon Voima, now operates the world’s largest biomass gasification plant. With the new 140 MW plant, the company will be able to cut CO2 emissions by around 230,000 tons per year, equivalent to the annual emissions of 70,000 cars.
Conversion technologies These three cases all feature Metso’s technology, but the illustrations here are from its power
METSO
plant at Bad Arolsen, Germany. During the past ten years, the company has delivered more than 13 GWth of boiler capacity that utilises renewable fuels and reduces emissions associated with fossil- fuel-fired boilers. “This CO2 neutral energy production has helped to avoid 40 million tons of greenhouse gas emissions annually, corresponding to emissions from over 24
million cars,” said Jyrki Holmala, President of Metso’s Power business line.
“This is possible thanks to our Fluidized Bed boiler and gasification technology and their ability to convert various renewable raw materials, such as forest residuals, non-food agro fuels and waste, into energy.” More information from
www.metso.com
July 2013
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