1 https://www.utilitydive.com/news/electric-heat-pumps-will-be-the-cheapest-clean-option-to-heat-most-us-homes/628245/

2  source: https://www.energy.gov/eere/slsc/low-income-community-energy-solutions

3  https://www.smud.org/-/media/Documents/Corporate/About-Us/Board-Meetings-and-Agendas/2022/Aug/Exhibit-to-Agenda-Item-2—Community-Impact-Plan.ashx