Building Energy Consumption Calculator

Estimate daily, monthly, and annual energy usage to optimize efficiency and reduce costs

CO₂ Emissions

0 kg

Based on your energy source and consumption
Quick Actions

Energy Consumption

Category Device Name Wattage (W) Quantity Hours/Day Days/Month Daily (kWh) Monthly (kWh) Annual (kWh) Actions
Total Consumption 0 0 0
Estimated Cost $0 $0 $0

Energy Saving Tips

Based on your current energy consumption, here are some recommendations to improve efficiency:

Lighting
  • Replace incandescent bulbs with LED bulbs (saves 75-80% energy)
  • Use natural light whenever possible
  • Install motion sensors in low-traffic areas
Heating & Cooling
  • Set thermostat to 68°F (20°C) in winter and 78°F (25.5°C) in summer
  • Service HVAC systems annually
  • Use ceiling fans to reduce AC usage
Appliances
  • Unplug devices when not in use (phantom loads add up)
  • Choose ENERGY STAR certified appliances
  • Run full loads in dishwasher and washing machine
Building Envelope
  • Add insulation to attic and walls
  • Seal air leaks around windows and doors
  • Install energy-efficient windows
Potential Savings

Implementing these measures could reduce your energy consumption by 20-30% annually.

Energy Benchmark Comparison

Compare your building's energy consumption with similar buildings in your region.

Your Building
  • Annual Consumption 0 kWh
  • Annual Cost $0
  • Energy Intensity 0 kWh/sqft
Regional Benchmark
  • Average Annual Consumption 10,000 kWh
  • Average Cost $1,200
  • Average Intensity 5 kWh/sqft
50% of Average
Your building's energy consumption is average compared to similar buildings in your region.
Energy Star Score

Based on your inputs, your building would likely receive an Energy Star score of:

75
out of 100

A score of 75 means your building performs better than 75% of similar buildings nationwide.

About This Tool

The Building Energy Consumption Calculator helps you estimate the electricity usage of your building based on the appliances and systems you use, their wattage, and your usage patterns.

How It Works
  1. Add appliances with their wattage and usage patterns
  2. The calculator computes daily, monthly and annual consumption
  3. Compare your usage to benchmarks
  4. Get energy saving recommendations
Key Features
  • Multiple appliance tracking
  • Real-time calculations
  • Cost estimation
  • CO₂ emissions calculation
  • Benchmark comparison
  • Energy saving tips
Understanding Your Results

kWh (kilowatt-hour) is the unit of energy used by utilities to measure electricity consumption. One kWh equals using 1,000 watts for one hour.

Energy Intensity measures energy use per square foot, allowing comparison between buildings of different sizes.

Frequently Asked Questions

The estimates are based on the inputs you provide. For more accurate results, use actual wattage from appliance labels and realistic usage patterns. Real-world consumption may vary due to factors like appliance age, maintenance, and environmental conditions.

For devices like refrigerators or HVAC systems that cycle on and off, use an estimated average wattage. Many appliances list their average energy consumption on their EnergyGuide labels.

Check the "Energy Saving Tips" tab for recommendations. Focus first on the largest energy users identified by the calculator. Simple changes like switching to LED lighting, adjusting thermostat settings, and unplugging unused devices can make a significant difference.