About Us

Renewco was born from a partnership between Southern Company Gas (formerly AGL Resources), one of the largest and oldest natural gas distribution companies in the U.S.; and Keystone Renewable Energy, experts in solid waste management, landfill gas collection system design and optimization. In 2013, Southern Company Gas purchased the rights to become the sole owner of the business. Landfill owners get the benefit of working with a partner that brings longevity and financial stability to the project.

The art and science of developing a landfill gas project involves many challenging and complex phases. Renewco is the only developer that can seamlessly integrate each phase of the project using in-house resources from beginning to end. Our experts possess all of the know-how required to see landfill-to-pipeline through to a successful and profitable completion. No one in the industry has the depth and breadth that Renewco offers.

The conversion of landfill gas to high BTU pipeline-quality natural gas, using membrane technology, is still a relatively new concept. Of the projects completed to date throughout the U.S., many are the work of the professionals on Renewco's team. We're proud to be ushering in a highly efficient, accessible form of renewable energy.


Meet Our Leaders

Company Officers

Michael Ellis
Vice President, Renewco
Director, AGL Energy Services

Mike Ellis is responsible for sales and plant operations of the company’s landfill gas subsidiary, Renewco. He also has management responsibility for all aspects of Southern Company Gas’ energy services business unit, AGL Energy Services. Ellis has direct responsibility for sales efforts, contract negotiations and implementation of projects. He brings extensive experience in performance contracting in several market segments, including governments, education and commercial facilities. Ellis also offers an in-depth knowledge of financing and associated energy applications including renewable energy, in order to assess feasibility studies of potential projects. Previously, Ellis was chief operating officer for Global Energy Systems; regional manager for Energy Systems Group, LLC. Prior to that, he served as vice president and general manager of Southern Company Energy Solutions.


Other Executives

Allen J. Spivey
Director of Corporate Engineering, Southern Company Gas

Allen Spivey has more than 26 years in the natural gas industry, including gas transmission, distribution, and research activities. Throughout his career, he has planned, designed, engineered and built unique and high pressure gas facilities, and interpreted, promulgated and managed compliance with state and federal regulatory codes. Spivey is experienced in all facets of natural gas operations, including gas safety, gas quality, production, transportation and gas utilization. He has provided engineering support for projects totaling nearly $500 million including a 21-mile new 24-inch pipeline, modification and upgrade of a 150-mile pipeline, three new compressor stations, meter and regulator stations for natural gas and landfill gas projects, and the development of two gas storage plants. Spivey manages a cross-disciplined technical group that provides technical support for strategic initiatives, large capital projects, gas storage and peaking plants (LNG and Propane-Air). He holds two patents for pipe rehabilitation methods.

Charlie Wall
Manager of Construction and Operations, Renewco

Charlie Wall reviews and oversees all project managers, construction projects, operations and maintenance of performing assets. He creates and executes project work plans and revises as appropriate to meet changing needs and requirements. Wall also oversees and manages owned assets of Renewco and manages the development team to analyze new opportunities. Formerly employed by Global Energy Systems, Energy Systems Group, LLC, Southern Company Energy Solutions and Georgia Power Company, Wall's 30 years of extensive experience in the renewable energy industry has allowed him to facilitate projects across the country with biomass, landfill gas, solar and combined heat & power technologies, as well as boiler and chiller systems, building energy control systems and other energy conservation initiatives.



Southern Company Gas

About Southern Company Gas

Southern Company Gas is a wholly owned subsidiary of Atlanta-based Southern Company (NYSE: SO), America’s premier energy company. Southern Company Gas serves approximately 4.5 million natural gas utility customers through its regulated distribution companies in seven states and more than 1 million retail customers through its companies that market natural gas and related home services. Other nonutility businesses include asset management for natural gas wholesale customers and ownership and operation of natural gas storage facilities. For more information, visit Southern Company Gas at southerncompanygas.com.