Solar Gadget Frugality & ROI Calculator

Inspired by r/Frugal pool skimmer findings: "Upfront cost stung a bit, but weighing it against chemicals and electricity, it's paying for itself faster than I expected."

Quick Presets:

Simulation Parameters Solar Pool Skimmer

$450
Retail cost of device including solar charging panel & battery
$28/mo
Grid power previously consumed by electric skimmer/filter run-time
100%
Percentage of electric run-time replaced by solar device
$35/mo
Baseline spend on chlorine, algaecide, clarifier, or disposable filters
40%
Reduction due to organic debris caught before sinking & decaying
5 Years
Expected operational lifetime under normal sun exposure

Financial Return & Payback Break-even in 11 mos

Annual Electricity Saved $336 12 × $28 × 100%
Annual Chemical Savings $168 12 × $35 × 40%
Break-Even Payback Period 11 months Quick recovery (< 1 yr)
Total Annual Savings $504 Combined recurring savings/yr
5-Year Cumulative Net Savings:
Net profit after recovering $450 upfront hardware investment
$2,070
At an upfront investment of $450, this gadget returns $504/year in avoided utility and chemical bills, achieving 100% financial payback in 11 months and delivering $2,070 in pure net profit over 5 years.
Ready to calculate & export

Methodology & Frugality Grounding

Electricity avoided: Monthly Baseline × Solar Offset % × 12.
Chemicals / consumables preserved: Monthly Chemical Spend × Reduction % × 12.
Payback timeline: Math.ceil((Upfront Cost / Total Annual Savings) × 12).
Net Lifetime Savings: (Total Annual Savings × Lifespan Years) - Upfront Cost.

All financial computations occur 100% locally in your browser. Presets reflect real community data points from r/Frugal and homeowner utility averages.

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