Financial Inputs
Est. connect cost: $0 • $0 within 100m, $50/m to 500m, $40/m to 1km
Battery prices are projected to decrease 5-10% per year due to manufacturing scale — actual cost at year 12 will likely be lower.
Generator Comparison
Water Costs
Household avg ~400L/day
AU avg ~$3.50/kL
Tanks, pumps, filtration — included in solar/off-grid upfront cost. Off-grid water has ~$200/yr maintenance vs municipal bills escalating ~3%/yr.
Payback Period
10 Years
25-Year Savings
$84,426
ROI
338%
Cumulative Cost (25 Years)
Includes energy + water costs. Grid/generator lines include municipal water at $3.5/kL escalating ~3%/yr
- Grid
- Generator
- Solar
🟢 Green dot indicates battery replacement at Year 12 ($7,500)
vs Grid Power
7,709 kg CO₂/yr
≈ 368 trees planted
vs Diesel Generator
13,695 kg CO₂/yr
≈ 653 trees planted