전력 회사 요금 예측
지출을 예측하세요. 고전력 장비를 24시간 내내 또는 피크 시간에만 가동할 때의 실제 비용을 계산합니다.
청구 지표
요금 및 일일 사용량
매개변수를 입력하면 결과가 실시간으로 업데이트됩니다.
비용 공식
전기 요금은 소비된 에너지에 전력 회사의 kWh당 가격을 곱한 것입니다.
일일 비용
Cost = kWh × Rate ($/kWh) 일일 kWh 소비량에 전기 요금을 곱하면 모든 가전제품이나 시스템의 일일 운영 비용을 알 수 있습니다.
연간 예상치
Annual = Daily Cost × 365 비용을 연간으로 환산하면 작아 보이는 일일 지출의 실제 영향을 알 수 있으며, 에너지 절약 업그레이드를 정당화하기 쉬워집니다.
How to Calculate Your Electricity Cost
Understanding exactly what each appliance costs to run empowers smarter energy decisions — from choosing when to run the dishwasher to calculating the payback period on a new heat pump. The calculation is straightforward: find the power in kW, multiply by hours of operation, and multiply by your electricity rate per kWh.
Finding Your Electricity Rate
Your electricity rate ($/kWh or p/kWh) appears on your utility bill — look for "energy charge" or "unit rate." In the US, the average residential rate is around $0.12–$0.16/kWh, but it varies widely by state and time of day (time-of-use tariffs). In the UK, the Ofgem price cap sets a standard unit rate. Always use your actual rate for precise calculations.
Biggest Contributors to Your Electricity Bill
- Space Heating / Cooling (40–50%): Heat pumps are 3–4× more efficient than resistance heaters — replacing old electric baseboard heaters can cut this portion dramatically.
- Water Heating (15–20%): Heat pump water heaters use 60–70% less electricity than conventional electric tank heaters.
- Appliances and Lighting (10–15%): LEDs and Energy Star appliances provide the biggest savings here with shortest payback periods.
- Electronics and Standby (10%): Smart power strips and unplugging devices cuts phantom load — small savings that add up over a year.
Time-of-Use Pricing Tips
Many utilities offer time-of-use (TOU) tariffs with cheaper rates during off-peak hours (typically late night and early morning). Shifting energy-intensive tasks — EV charging, running dishwashers and laundry, pre-cooling your home — to off-peak hours can reduce your bill by 20–40% without reducing consumption at all.