Rolls-Royce supplies CHP plant for 30th greenhouse

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Since the beginning of the year, two Rolls-Royce CHP plants have been supplying energy to a new tomato greenhouse operated by Maxburg BVBA in Meer in Belgium. The two gas-powered gensets have reliably supplied over 20 MWh of heat and power to date. Maxburg is now the 30th greenhouse for which Rolls-Royce has delivered CHP plants. Since 2005, no less than 52 CHP plants manufactured by Rolls-Royce have generated a total electrical output of 270 MW in greenhouses in Holland, Belgium, Russia and the UK.

The gensets are based on the medium-speed B35:40 V12 AG2 engines from Rolls-Royce, each of which is able to generate an electrical output of 5,650 kW and a thermal output of 6,545 kW. They achieve an efficiency level of more than 96 per cent. The electric power is used primarily for the greenhouse lamps and, if required, is fed into the public grid.

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The greenhouse, which extends over an area of 10.2 hectares, is heated using the heat extracted from the exhaust gas and the engine’s cooling system. The cleaned exhaust gases from the engines are also injected into the greenhouses to increase the level of CO2 and boost plant growth. The owner expects to achieve an annual production of 7.5 million kilogrammes of tomatoes at the Maxburg greenhouse.

Rolls-Royce has delivered the complete CHP plants, consisting of the power generator sets, the exhaust gas systems, including the SCR systems and the heat exchangers. The electronic control systems are also included in the scope of supply. Operator John Vermeiren and Rolls-Royce have concluded a long-term service agreement for the combined heat and power plants covering approximately 4,500 hours of operation per year over the next 10 years.

Source: Rolls-Royce