Chapter 8
Payback and ROI
Start reading from section 1 →Sections in this chapter
- 8.1 The 7 variables that drive payback
- 8.2 How fast does residential solar pay back?
- 8.3 With the residential ITC gone, how to still capture a 20%–30% federal benefit
- 8.4 Investment-side installs (rentals, restaurants, factories, after-school facilities): 3–4 year payback
- 8.5 Is solar worth it if my bill is only $150/month?
- 8.6 State-by-state payback (cash purchase, 2026 pricing)
- 8.7 Cash vs Loan vs PPA — three payment paths compared
- 8.8 Mindset: treat solar as a financial product
- 8.9.1 How much power does an EV use?
- 8.9.2 EVs in California don't automatically win on cost