Energy Management and Sustainability

Energy Management and Sustainability
Facility captures and refines biogas

Interested in Energy?

Get Energy articles, news and videos right in your inbox! Sign up now.

Energy + Get Alerts

Combined heat and power system saves energy

Problem

The aging internal combustion engines at the 26 mgd York (Pa.) Wastewater Treatment Plant raised monthly energy expenditures to $63,000.

Solution

Operators selected a C1000 and C600 microturbine combined heat and power system from Capstone that operates on natural gas and on biogas produced at the plant.

Compared with the original engines, the side-by-side units produced 40 percent more power using the same amount of natural gas while reducing electricity bills. The plant further reduced operating costs by recovering the microturbine exhaust heat and using it in the digestion process. 818/734-5300; www.capstoneturbine.com.

Facility captures and refines biogas

Problem

To relieve the strain high energy costs were putting on the city’s budget, Dallas (Texas) Water Utilities looked to reduce its electrical consumption by using biogas from the anaerobic digesters.

Solution

Officials worked with Ameresco to design, build and operate a 4.3 MW combined heat and power facility processing 1,200 scfm of biogas.

The facility was projected to save the city $1.5 million annually and offset most of the electricity the utility has typically drawn from the grid. 866/263-7372; www.ameresco.com



Discussion

Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted.