Biogas first for Sub-Saharan Africa

A combined heat and power plant powered by biogas is to be the first such facility introduced to Sub-Saharan Africa.

Tropical Power, a developer of biogas and solar plants in Africa, has signed a deal with Clarke Energy to supply two containerised Jenbacher biogas engines in Kenya. The units will be supplied to an agricultural biogas plant located at a farm ne ar Lake Naivasha.

Biogas will be produced from an agricultural anaerobic digester processing wastes to give power and fertilizer while 2.4MW of renewable electricity is to be produced in rural Kenya providing power to a local farm and surrounding area, enough to power up to 6000 typical homes.

The engines will operate in a combined heat and power (CHP) configuration increasing the overall plant efficiency, through the recovery of heat which will displace diesel normally used in the heating of greenhouses at the farm.

Clarke Energy is contracted for a turnkey project to supply, engineer and install the CHP generators. The biogas will be fed into two  J420 Jenbacher gas engines from GE Power & Water. The gas engines will be configured for cogeneration, with surplus heat recovered as hot water and used for biogas plant process heating and for heating adjacent greenhouses.

The biogas engines are scheduled for delivery to Kenya in the last quarter of this year.

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