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The document examines the production and use of renewable natural gas (RNG) as a climate strategy in the United States, focusing on its potential to reduce greenhouse gas (GHG) emissions when derived from organic waste. It identifies that RNG is most effective when produced from waste rather than dedicated land and when it results in net methane emissions reductions. The paper highlights promising feedstocks such as food and yard waste diverted from landfills and livestock manure. While RNG production costs are higher than conventional natural gas, the report notes that economic viability is supported by low-carbon fuel standards and federal incentives. However, it warns that RNG can increase net methane emissions if it comprises 'new methane'—methane that would not have otherwise entered the atmosphere—due to supply chain leakage. The authors call for more data on methane leakage and life-cycle carbon intensities to better integrate RNG into long-term climate plans.

The document details the use of the NREL Regional Energy Deployment System (ReEDS) model to evaluate three policy scenarios for Illinois: a 'No Policies' case, an 'Existing EEPS + Fixed RPS' case, and a 'Strengthened EEPS + RPS' case. It outlines specific adjustments made to EIA AEO 2014 cost and performance assumptions for various generating technologies, including wind, solar, nuclear, and carbon capture and storage, to better reflect project-specific data and recent studies. Additionally, it provides the calculation methods for energy efficiency costs and savings based on Illinois utility filings.

The study examines three scenarios for greening data centres at Dalhousie University, the University of Ottawa, and the University of Alberta. It finds that relocating to remote renewable sites (Scenario 1) or urban low-emission grids (Scenario 2) is economically unviable due to high capital costs. Only on-site waste heat recovery (Scenario 3) showed a positive net present value for one institution. The report suggests a 'green community cloud' managed by CANARIE as a more viable alternative to individual university efforts.