Option A
Free solar ROI calculator for payback, IRR, NPV, and LCOE
PV Yield helps homeowners, installers, and early-stage solar investors estimate payback, generation, revenue, IRR, NPV, LCOE, losses, and sensitivity with visible assumptions. Users can start with country and city defaults, then replace assumptions with quote-specific numbers.
- Listing
- Free (nofollow)
- Listed
- Jun 2026
Option B
Know when work becomes optional and how to bring that date closer.
UntilFire is a personal finance app for people pursuing financial independence. It calculates your freedom date from your income, savings, portfolio, and location, then shows the highest-impact moves to bring that date closer. Instead of stopping at a FIRE number, it gives you scenario planning, calculators, city-based cost-of-living comparisons, and ongoing tracking so you can make better decisions with your actual numbers.
- Listing
- Free (nofollow)
- Listed
- Jun 2026