News & Insights

  • November 20, 2025
St Bernard Organics-to-Energy

St. Bernard Organics-to-Energy Facility

UGI Energy Services and Synthica Energy, LLC, jointly developed one of the nation’s most advanced anaerobic digestion facilities, which converts high-strength industrial and food waste into renewable natural gas (RNG)....

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  • November 20, 2025
UGI Carport

UGI Corporate Headquarters Carport Solar Array

UGI was searching for a partner to help install a cutting-edge carport solar array at their new headquarters. Their primary goals were to reduce energy consumption, increase sustainability and decrease...

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  • November 20, 2025
Catawba Landfill RNG

Catawba County Landfill Renewable Natural Gas Pipeline

RETTEW delivered full engineering, procurement, and construction (EPC) services for the installation of a 4-mile renewable natural gas (RNG) pipeline connecting a newly constructed RNG facility at the Catawba County...

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  • November 20, 2025
UGI Learning Center

UGI Learning Center Rooftop and Ground Mount Solar Arrays

RETTEW delivered turnkey engineering, procurement, and construction (EPC) services for two renewable energy initiatives at UGI facilities, reinforcing the company’s commitment to sustainability and operational efficiency. At UGI’s Leesport training...

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  • April 19, 2022
Bluesphere Anaerobic Digestion

Bluesphere Anaerobic Digester Due Diligence

A private developer of renewable energy projects hired RETTEW to conduct a due diligence evaluation of a 400-ton-per-day food waste anaerobic digestion facility in Charlotte, North Carolina. The facility receives...

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  • April 19, 2022
Anaerobic Digestion to Renewable

Anaerobic Digestion to Renewable Natural Gas Project Development

An energy client was looking to develop multiple renewable natural gas (RNG) projects to meet their corporate sustainability goal of reducing the carbon footprint of the natural gas grid through...

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  • October 8, 2021

Jonah Energy Alternative Energy Offset Analysis

Jonah Energy LLC operates one of the highest-producing natural gas fields in North America. Jonah Field, in the Green River Basin, is their most active gas-producing site. Oil and gas...

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  • May 11, 2021

Rhode Island Row Solar Array

A team of solar developers was looking to install rooftop and carport solar arrays on two mixed-use commercial buildings in downtown Washington, D.C. to benefit lower-income residents in the D.C....

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  • February 26, 2021

Bedrock Depth Mapping at a Solar Farm

A solar farm was expanding onto a hill where a limestone rock outcrop was observed. This raised concerns about shallow rock that could impede installation of the driven rods that...

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  • October 31, 2018
ACUA_BESS_Construction

Atlantic County Utilities Authority Battery Energy Storage System

As the lead design-build firm that is co-developing battery energy storage system (BESS) projects nationwide, RETTEW implemented this technology at the Atlantic County Utilities Authority (ACUA) Wastewater Treatment Plant. The...

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