Renewable Natural Gas Facility in Davenport, Iowa

1000 scfm WAGABOX® Unit Installed at Scott Area Landfill

 

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Waga Energy, the Waste Commission of Scott County, and Linwood Mining and Minerals are proud to announce the successful start-up of a Renewable Natural Gas (RNG) facility using WAGABOX® technology at the Scott Area Landfill in Davenport, Iowa. This landmark project brings locally produced renewable energy to the community while significantly reducing greenhouse gas emissions.

With an installed capacity of more than 205,000 MMBtu of RNG per year, the new facility will generate the energy equivalent of 1.5 million gallons of diesel fuel. By replacing fossil fuels, it will avoid approximately 15,800 tons of CO₂ equivalent emissions annually, helping advance the fight against climate change.

The Scott Area Landfill is operated by the Waste Commission of Scott County on a site leased from Linwood Mining and Minerals. The landfill processes around 185,000 tons of waste each year from 17 municipalities across Scott County. By transforming landfill gas into a valuable energy source, the project demonstrates the power of innovation and collaboration to turn waste into a clean, circular energy solution.

Scott Area Landfill

Established in the late 1970’s, the Scott Area Landfill serves Davenport and the surrounding communities, managing regional waste with modern environmental systems and supporting local sustainability efforts. The site now plays a key role in producing locally sourced renewable natural gas for the region.

"Waga Energy was the first organization we met with an appropriate process to valuing the resources of our community."
Bryce Stalcup
Executive Director of the Waste Commission of Scott County
1,000 scfm
of landfill gas upgraded into renewable natural gas
15,800 tons
of CO2 equivalent emissions avoided annually
205,000 MMBtu
of RNG injected directly into MidAmerican Energy's network annually

 

Developed and patented by Waga Energy, the revolutionary WAGABOX® technology makes it possible to convert landfill gas into renewable natural gas.

The WAGABOX® technology combines two cutting-edge systems for upgrading biogas derived from waste, ensuring that the RNG produced by our units meets the standards for injection into natural gas pipelines.

The WAGABOX® technology creates new opportunities for landfill gas recovery that combine energy generation, environmental compliance, and economic benefits.

The WAGABOX® technology is already in use at multiple landfill sites around the world owned by local authorities and leading waste management companies.

Explanatory illustration of the WAGABOX technology. Raw biogas is treated by membrane filtration to separate carbon dioxide from methane. Impurities and CO2 present in the gas are expelled from the circuit. The partially treated biogas then passes through the cryogenic separation module, which separates the methane from the air gases using nitrogen. The air gases are expelled from the circuit. The 98%-pure biomethane is then injected into the gas distribution network. Explanatory illustration of the WAGABOX technology. Raw biogas is treated by membrane filtration to separate carbon dioxide from methane. Impurities and CO2 present in the gas are expelled from the circuit. The partially treated biogas then passes through the cryogenic separation module, which separates the methane from the air gases using nitrogen. The air gases are expelled from the circuit. The 98%-pure biomethane is then injected into the gas distribution network.

From Local Resources to Clean Energy: Scott County and Linwood’s Circular Economy Project

Illustration showing the place of Waga Energy and the WAGABOX in the circular economy. Step 1: Production of waste by individuals and industry. Step 2: Collection and transportation of this waste. Step 3: Burial of waste in a non-hazardous waste storage facility (ISDND). Step 4: Capture of the biogas produced by fermentation of the landfilled waste. Step 5: Biogas purification. Step 6: Injection of 98%-pure biomethane into the natural gas network. Step 7: Consumption of biomethane by residential and industrial customers. Illustration showing the place of Waga Energy and the WAGABOX in the circular economy. Step 1: Production of waste by individuals and industry. Step 2: Collection and transportation of this waste. Step 3: Burial of waste in a non-hazardous waste storage facility (ISDND). Step 4: Capture of the biogas produced by fermentation of the landfilled waste. Step 5: Biogas purification. Step 6: Injection of 98%-pure biomethane into the natural gas network. Step 7: Consumption of biomethane by residential and industrial customers.

Scott County, Linwood Mining and Minerals, and Waga Energy announce the start-up of a Renewable Natural Gas facility at the Scott Area Landfill in Iowa

On October 7thth, 2025, the Waste Commission of Scott County, Linwood Mining and Minerals, and Waga Energy announced the start-up of a Renewable Natural Gas (RNG) production facility at the Scott Area Landfill in Davenport, Iowa. The project marks a major milestone in delivering locally produced renewable energy to the community while significantly reducing on-site greenhouse gas emissions.

Read the press release

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Tanguy Largeau
President of Waga Energy Inc
Alicia Fanni
Sales and Marketing Analyst