Heat matters.  The intersecting climate, energy security, and cost of living crises have made decarbonizing heating a top priority.  Nearly half of all global primary energy consumption is related to heating buildings and despite efforts to shift to renewable energy sources, fossil fuels remain the dominant fuel source. Heating contributes to roughly 40% of all energy-related greenhouse gas emissions. Decarbonising heating would result in a substantial reduction in global CO₂ emissions and bring about numerous socio-economic co-benefits, including economic growth, job creation, poverty reduction, enhanced social welfare, and increased resilience and energy security. In many countries, stakeholders are quickly realizing the urgency of decarbonizing the sector and the opportunities it brings.  Significant investment programs are now in place to accelerate the development of, and transition to, green heating. Investments like these are likely to dominate infrastructure spending for years to come. 

Although the pursuit of net-zero and lower energy costs has generated a lot of talk about replacing fossil fuel-reliant heating systems with green alternatives, project delivery remains unacceptably low. This is in large part due to the various capacity gaps that complicate the decarbonisation landscape and increase cost and risk for stakeholders. These gaps include, among others, an industry-wide lack of necessary and emerging skills, an absence of replicable tenets of best practice, and disjointed supply chains.