| System Type | Efficiency | Running Costs | Carbon Emissions | Lifespan |
| Heat Pump System | High | Low | Very Low | 15+ years |
| Solar Hot Water Systems | High | Very Low | Near Zero | 20+ years |
| Electric Water Heater | Low | High | High | 10-15 years |
| Gas Storage Heater | Medium | Medium | Medium | 10-12 years |
| System Type | Standard Cost | VEU Program Discount | Final Cost to You |
| Heat Pump Hot Water | $3,000 – $4,500 | Up to $3,200 | $0 – $200 |
| Solar Hot Water Systems | $3,500 – $5,000 | Up to $2,500 | $500 – $1,500 |
| Electric Hot Water Systems | $1,500 – $2,500 | No rebate | $1,500 – $2,500 |
| Gas Storage Heater | $1,500 – $3,000 | No rebate | $1,500 – $3,000 |
Year 1: $800
Year 2: $1,600
Year 3: $2,400
Year 4: $3,200
Year 5: $4,000
Year 6: $4,800
Year 7: $5,600
Year 8: $6,400
Year 9: $7,200
Year 10: $8,000
| System Type | Energy Use Per Year (kWh) | Energy Reduction(%) |
| Electric Hot Water Systems | 4,500 kWh | Baseline |
| Gas Storage Heater | 3,000 kWh | ~35% lower |
| Heat Pump Hot Water | 1,200 kWh | ~75% lower |
| Solar Hot Water Systems | 500-1,000 kWh | ~80-90% lower |
| System Type | Annual CO2 Emissions (tons) |
| Electric Hot Water Heater | 3.0 |
| Gas Storage Heater | 2.5 |
| Heat Pump Water Heaters | 0.8 |
| Solar Hot Water Systems | Near- Zero |
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