What is the cost of a $50,000 at 10% interest vs the cost of $50,000 at 2.5% interest over 10 years?

Money is not free. Solar is now expensive:

[1] https://www.cnet.com/home/energy-and-utilities/high-interest...

[2] https://www.bloomberg.com/news/newsletters/2023-11-03/invest...

[3] https://finance.yahoo.com/news/solar-stocks-get-hit-as-risin...

[4] https://www.nytimes.com/2023/12/05/climate/renewable-energy-...

[5] https://www.woodmac.com/news/opinion/high-interest-rates-imp...

[6] https://www.ft.com/content/07443afb-b935-492d-8711-8c47e4353...

[7] https://time.com/6281021/renewable-energy-interest-rates/

[8] https://www.fool.com/investing/2024/01/13/why-solar-energy-s...

[9] https://www.solarpowerworldonline.com/2024/01/high-interest-...

[10] https://www.newsweek.com/high-interest-rates-impact-solar-en...