The Irish retrofitted bungalow that consumes less than a passive house

Green Apple AwardCarlow, a town situated about 80 kilometers from Dublin, is the site of the most energy-efficient 1970s bungalow in the country. Formerly, it was a typical energy-guzzling construction from the period with energy bills running to thousands of euro a year – today it consumes less energy yearly less than a passive house. Bills for all energy consumption including electrical appliances are in the region of several hundred euro only. This achievement was recognised when it received a Green Apple Award in 2013. Continue reading

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World Water Day – what is it all about?

World Water Day

Water and energy are closely interlinked and interdependent. Energy generation and transmission requires utilization of water resources, particularly for hydroelectric, nuclear, and thermal energy sources. Conversely, about 8% of the global energy generation is used for pumping, treating and transporting water to various consumers. Continue reading

Biogas: lights and shadows of a promising technology

By Mario A. Rosato

Biogas Plant in SwedenLike any other technology, anaerobic digestion is good in itself but unfortunately EU policies and some local lobbies have in many cases created a fertile soil for speculation to grow about its potential. Beyond this political polemic and ideological dogma, experience has proven that only biogas plants designed and managed with rational criteria can help the environment, the community and the economy at the same time. The following decalogue (ten commandments) may be of help to anybody wishing to invest in a biogas plant and obtain a sustainable return on the investment:

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