Landfill Gas-To-Energy

LANDFILL GAS-TO-ENERGY

Surry County, NC

In 2012, a ReNew Petra affiliate and CHA were selected by Surry County to develop a landfill gas-to-energy project for the Mount Airy landfill. This project was developed under a public- private partnership model with the project team providing initial development of the project with a transition in ownership of the project to the County after seven years of operation. This development model enabled the County to develop the project with limited risk. The LFGTE project included:

A new landfill gas collection system
Gas compression and clean-up
A 1.6 MW engine-generator
Generator housing
Related piping and controls
Utility interconnect

The project team was responsible for system design, system construction, initial system operation, and for all permits and approvals. We negotiated the PPA with Duke, and were responsible for FERC licensing and registration of landfill methane destruction under the Climate Action Registry (FAR). The project was implemented on a fast-track, design-build basis and began operation in late April of 2013.

Catawba County, NC

We were part of a team that assisted in managing and developing LFGTE projects for Catawba County. While an initial 4MW LFGTE project was developed in 1998-99, a number of activities related to expanding the site, improving technology, and the permitting, design, construction, and modifications of an active LFG extraction and energy recovery system for the County’s Blackburn landfill facility continue.

A new 1MW engine-generator system was designed to generate electricity from additional LFG that was being recovered. Design and permitting also included all required licensing, utility interconnect, and air and solid waste permitting activities.

Catawba County, NC - Planning + Implementation

A ReNew Petra affiliate provides strategic support to the ongoing development of the Catawba County EcoComplex program, which includes assisting with strategic development to expand EcoComplex renewable projects, including but not limited to: biomass gasification, wastewater anaerobic digestion, cogeneration (including on-site carbon dioxide (CO2) production), biodiesel production, solar PV, solar thermal, and numerous industrial thermal site applications. The Catawba County Regional EcoComplex and Resource Recovery Facility program received an American Academy of Environmental Engineers Honor Award in the environmental sustainability category.

A ReNew Petra affiliate also assists numerous government and private entities in developing multiple renewable projects, including a central “green” biomass gasification cogeneration plant at this site for use by multiple industrial clients, as well as an anaerobic digester generation project as a regional wastewater solids disposal operation. Our team developed the project concept and coordinated all technical, financial, regulatory, and contractual facets of the project. The project runs completely off of renewable fuel sources that are currently classified as waste by industry and government. The project integrates steam and electric production provided to multiple end user clients.

Buncombe County, NC

A ReNew Petra affiliate was part of a team that managed and developed this project for Buncombe County. The project consisted of the permitting, design, construction, and start-up of an active landfill gas extraction and energy recovery system for the Woodfin Management facility. Working with CDM Smith, our team managed and negotiated all utility regulatory, electric and environmental credit contracts and permits.

A 1.4MW engine generator system was designed to generate electricity from recovered landfill gas. Design and permitting included all required licensing, utility interconnect, and air and solid waste permitting activities. The energy conversion facility began commercial operation in August 2011.

Gaston County, NC

A ReNew Petra affiliate was responsible for this $10.5 million, 6 MW project with an ultimate capacity of 50,000 MWh/year. The project scope of work included:

Installing gas extraction wells, collection system infrastructure, blower/flare, gas compression and cleanup, gas transmission, and a state-of-the-art power generation facility
Securing all required agreements and permits, including a multi-year Power Purchase Agreement (PPA) with Duke Energy and Renewable Energy Credit (REC) sales
Negotiating grid-interconnect with the Rutherford Electric Membership Corporation