The City of Springfield in the United States is undertaking a Renewable Natural Gas (RNG) project that involves converting biogas from Noble Hill Sanitary Landfill and Southwest Wastewater Treatment Plant into renewable natural gas for the grid. The biogas, a byproduct of various sources including solid waste, sewage sludge, and food waste, is collected through a network of pipes and processed to match the quality of natural gas before being delivered to natural gas pipelines. The project, estimated at over $31 million for construction with additional operating costs, is expected to generate annual revenue between $4-19 million, making it a potentially profitable venture. By selling the biogas to gas companies and utilizing it for fuel, electricity, and thermal applications, the city aims to not only create a sustainable energy source but also benefit financially. City Utilities could potentially be a client for the biogas. The project, approved in March, is set to begin in fall 2024, with the RNG capability expected to be operational by fall 2025. Overall, the initiative is seen as a positive step towards environmental sustainability and economic growth for the community of Springfield.