Heating systems

Largest US Biomass Plant Online in Texas

Southern Company’s 100 MW Nacogdoches Generating Facility – which the company calls the nation’s largest biomass plant – is now operational and putting electricity on the grid in Texas.

The plant, which occupies a 165-acre tract of land near Sacul in east Texas, is fueled by non-merchantable wood waste. This is a combination of wood-based biomass fuels consisting primarily of saw mill or other wood mill production waste, forest waste, precommercial thinnings of cultivated trees, and diseased and other non-commercial tree species. There is also the potential for the use of urban wood waste, tree limbs and branches produced by storms and other non-commercial logging-derived biomass, Southern says. (more…)

Brewery combines wind, solar and biogas

Between biogas, wind and solar, Anheuser-Busch generates about half of its electricity from renewable energy to make beer at its Fairfield, California plant.

The company is the largest in the US to use nutrients in its wastewater to make biogas, a process called bio-energy recovery systems (BERS).

They also recover the steam that heats boilers in the brew house to produce energy, in addition to retrofitting with more efficient boiler burners, air compressors and lighting systems.

They get another 4% of electricity from 6,500 solar panels that cover 6.5 acres. (more…)

Agricultural Waste to Biogas Plant to Keep Swiss Army Warm

Construction work has begun on a biogas plant in Bure, Switzerland that will provide heat for the local training barracks of the Swiss Army. The plant will use agricultural waste.

The plant is located in the French speaking Swiss Canton of Jura, which the company said boasts fertile soil and a lot of agriculture, and will be used to treat manure from the surrounding agricultural establishments and agro-industrial waste from the region, including liquid manure, dung, green waste, and grain waste.

The Bio Etique Energie facility will produce 370 kW of electrical output, while its entire heat surplus of 2.6 GWh will be used to heat the nearby barracks, which hosts up to 1400 trainees. (more…)