CHP plant for NC approved

The Catawba County, N.C., board of directors has voted to proceed with a wood waste-fueled combined-heat-and-power (CHP) plant to be developed by Nexterra Systems Corp. in conjunction with GE Power & Water's gas engine division.

The system will be built in the county's EcoComplex and will produce 2 megawatts of electricity for sale to a local utility, according to Nexterra. Waste heat from the engines will also be used to dry biosolids produced at a new wastewater treatment facility. The plant will be the first of its kind in the U.S., according to Nexterra.

The wood waste, which will come from the Catawba city landfill, will be gasified by Nexterra's proprietary gasification technology. The resulting syngas will be directly fired into a GE gas engine. The system will be capable of providing net efficiencies of up to 65 percent in CHP mode, which makes it economic at a small scale, according to Nexterra.