Home and Energy demand

Space heating is weather-distributed by daily degree-days. In gas mode, summer usage estimates hot water share and the remainder is assigned to space heating.

Output Yearly Demand
Heating (kWh/yr)
10,200
Hot water (kWh/yr)
1,600

Equipment Costs

Installation (€)Subsidy (€)Uncertainty (€)Maintenance (€/yr)
Heat Pump
Boiler

Energy Price

PriceAnnual increase (%)Volatility (%)
Gas (NL tariff, €/m³)
Electricity (€/kWh)

Gas price is entered in the Dutch household unit (€/m³) and converted internally to €/kWh using 1 m³ = 9.769 kWh.

Power (kWh/yr)Uncertainty (%)Eff. price (€/kWh)
Solar (Own)

Efficiency

Heat PumpBoiler
COP (A7/W35)Min COPMin temp (°C)Boiler efficiency

CO₂

Grid (kg/kWh)Gas (kg/kWh)Carbon price (€/kg)

Simulation

Future operating costs are discounted to present value at this annual rate; upfront installation costs remain year-0 values.

Approximate result (estimate) is shown

Approximate result updates automatically whenever inputs change.

Outputs

Run comparison to populate cost, payback, emissions, and energy outputs.

Δ savings = gas total − heat pump total, discounted to present value at 3%/yr.
First-year daily cost profile incl. energy, carbon-price, and maintenance. Shaded areas show P25–P75 across simulations.