Was going to say this. We’re in the middle of doing this now (currently have oil). There are a ton on incentives available and more coming next year. 30% federal tax credit for solar, around $1,250 per ton for mini split systems. There are also enhanced incentives for those who are low-income.

Can do a free home energy audit first and see what they recommend too- https://energy.ri.gov/energy-efficiency/residents