Energy Economics & House Emulator

Electricity Cost & Household Simulator

Analyze single appliance costs or simulate your entire house with multi-bulb fixtures, room breakdowns, and Home Assistant compatibility.

Electricity Tariff (per kWh):

€

/ kWh

Presets:

Power Consumption (Wattage): 0.35 kW

Watts

5 W 1,000 W 2,000 W 4,000 W

Usage Duration:

4.0 hours / day

15 min 6 hrs 12 hrs 24 hrs

Cost Breakdown

Calculated running expenses

Gaming PC & Rig

Hourly

€0.100

0.350 kWh

Daily

€0.40

1.40 kWh

Monthly

€11.97

42.0 kWh

Annual

€145.64

511.0 kWh

Annual Energy Demand: 511 kWh

Equivalent to approx. 194 kg CO₂ per year.

Appliance Presets

Click any appliance to load typical wattage and realistic runtime

10 Popular Devices

Active Tariff:

€ /kWh

Annual Electricity Bill

€1,026.00

€85.50 / month · €2.81 / day

Annual Consumption

3,600 kWh

9.86 kWh / day average

Active Emulated Devices

14 devices

22 total fixtures · 5 rooms

CO₂ Carbon Impact

1,368 kg CO₂

Requires approx. 68 trees to offset

Household Energy Distribution by Room

Visual share of total annual electricity expenditure

Showing 14 devices

Add Appliance to Household

Select from common household items or create a custom device

Appliance Name

Room / Zone

Icon

Wattage per Unit

Quantity

Daily Runtime

Home Assistant Entity ID (Optional) Used for future direct Home Assistant sync or state mapping

Home Assistant & JSON Data

Export your household simulation or import an existing configuration

Home Assistant Ready Schema: Every device includes standard entity_id, power ratings (W), quantities, and operating hours. You can back up your inventory, share it, or import directly into Home Assistant dashboards.

Fresh Coders
Nick Dekker

Contact

nick@freshcoders.nl
Amsterdam,
The Netherlands

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