Ameresco declares commercial operations of historic RNG plant

By Ameresco Inc. | April 18, 2019

Ameresco Inc., a leading energy efficiency and renewable energy company, today announced that it achieved commercial operations in early 2019 at its 91st Ave renewable natural gas (RNG) plant located in Phoenix, Arizona. Now operational, this plant is the largest wastewater treatment biogas-to-RNG facility of its kind in the US and is capable of processing 3,250 standard cubic feet per minute (scfm) of raw digester gas produced at the wastewater treatment plant (WWTP).

The 91st Ave WWTP is owned by the sub-regional operating group (SROG) member cities: Phoenix, Glendale, Mesa, Scottsdale and Tempe and is operated by the City of Phoenix.

In February 2017, Ameresco and the City of Phoenix hosted a ceremonial groundbreaking event for the start of this multi-million-dollar wastewater treatment biogas utilization project. Now almost exactly 2 years later, Ameresco, the City of Phoenix and the SROG partners are celebrating the start-up of this monumental project.

“This innovative partnership allows us to turn waste into resource by converting biogas, a byproduct of wastewater treatment, into renewable energy,” said Phoenix Mayor Kate Gallego. “This not only benefits our regional economy, but also reduces greenhouse gas emissions. Phoenix has set ambitious sustainability and renewable energy goals, and this kind of public-private partnership will help us get there.”

“This project exemplifies innovation in action and is a model for municipalities across the globe,” said Mike Bakas, executive vice president of Ameresco. “We commend the City of Phoenix and the SROG member cities for both their commitment to sustainability and their initiative to derive economic benefit from a previously undervalued asset: biogas from wastewater. We’re thrilled to be a long-term partner to the City of Phoenix and proud to help the region reduce its reliance on fossil fuels.”

A ribbon-cutting ceremony is scheduled for April 25 with Phoenix Mayor Kate Gallego, Ameresco and SROG City officials as the invited speakers for this historic event.