Hotel La Genzianella
Manager: N.E.C. One srl
Location: Morgex (Aosta Valley)
Plant: 1 x ZE-40-ULH energy module (see below)
Application: waste heat recovery from cooling jackets and exhaust gases of a vegetable oil-fueled MAN 420 engine
The client — the hotel "La Genzianella" — is located in colle San Carlo, Morgex, Aosta Valley, a small town on the road from Aosta to Courmayeur and the Mont Blanc tunnel. The plant, created by NEC ONE Srl is a small-scale power station born to take advantage of the favorable incentives (such as an extremely competitive omnicomprehensive tariff) given by the italian state and the local province for small-scale power generation plants fueled by biomass or other renewable sources.
The LT - ORC system Texas Green Technologies' Italian partner Zuccato Energia supplied for this plant is a single ZE-40-ULH module, i.e. a standard ZE-50 ULH downpowered from 50 to 40 kWe output to take advantage of the smaller thermal input. It operates recovering waste heat from the cooling jackets and the exhaust gases of a single DOOSAN DAEWOO P222LE engine, connected to a 420 kWE generator, which has been modified to run on vegetable oil or animal fats.
A peculiarity of this installation is that the skid on which the ORC system is mounted has been custom modified to fit the available space, otherwise insufficient for our standard skids or competitor systems. We have been able to modify the skid layout, making it shorter than the standard one, to fit in the underground boiler room used in this installation to reduce the visual and environmental impact
The biofuel currently used by this and other similar power plants (rapeseed oil from certified and tracked EU sources) is an environmentally friendly and renewable power source, made highly competitive by state and regional incentives. Such oil can easily be used as fuel in modified marine engines normally fueled by diesel fuel. The mechanical energy produced is used to operate the plant's main generator, and the energy produced is totally output to the national distribution grid.
As with all biomass-derived fuels, rapeseed oil has virtually zero CO2 impact, as the released CO2 is the same the plant captured when growing. Furthermore, the residue from rapeseed seed pressing can be used as a high-protein foodstuff for cattle.
Below you will find a small photogallery of this installation. Hover on an image thumbnail to see it enlarged in the main picture.