Advanced Energy Calculator
Professional-grade tools for accurate ROI analysis
Advanced ROI Calculator
Professional analysis with 25-year projections
Adjusted Generation
3700 kWh/yr
Annual Savings
€1300
Payback Period
4.6 years
25-Year Profit
€26504
25-Year Cumulative Savings
Unlock the Month-by-Month Breakdown
See how generation varies across the year, so you know what to expect in December vs June.
Upgrade to Premium - €4.99/monthMonth-by-Month Generation Breakdown
Battery Storage Optimizer
Calculate optimal battery size for night rate arbitrage
Typical: 6-10 kWh
4kW system ≈ 10-12 kWh/day
Savings Breakdown
Night Rate Savings
€566/yr
€0.412/kWh → €0.218/kWh
Storage Arbitrage
€354/yr
Store day solar, use at night
Payback Period
4.9 years
Total savings: €921/yr
Smart Tip: If your solar generates more than 8kWh daily, a 10kWh battery maximizes ROI through night rate arbitrage.
Heat Pump Suitability Checker
Check if your home is ready for a heat pump
✓ Suitable for Heat Pump
Your BER rating of C1 meets the minimum requirement (C3). A heat pump will work efficiently in your home.
Grant Available
€6,500
Annual Savings
€800
Payback Period
1.9yr
Air Source Heat Pump
Total Cost:€14,000
SEAI Grant:-€12,500
Net Cost:€1,500
Annual Savings:€1,200
Payback:1.3 years
Ground Source Heat Pump
Total Cost:€20,000
SEAI Grant:-€12,500
Net Cost:€7,500
Annual Savings:€1,500
Payback:5.0 years