Solar Panel Upgrade Calculator
Already have solar? See how much more you could save by upgrading to higher wattage panels.
Co. Waterford gets 1,150 kWh/kWp/year
Upgrade estimate for Co. Waterford
Extra generation
1,415 kWh/yr
Extra savings
€566/yr
Estimated upgrade cost
€1,200
Payback period
2.1 years
System upgrade: 3.5kW → 5.0kW (+1.5kW) at 943 kWh/kWp/year
Monthly extra generation
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Last verified: 2026-06-01