On average, retail buildings use 14.3 kilowatt-hours (kWh) of electricity and 30.9 cubic feet of natural gas per ft2 each year, with resulting costs of $1.47/ft2 and $0.29/ft2, respectively (assuming average 2009 commercial energy prices of $0.10 per kWh and $0.93 per hundred cubic feet).

How many watts does a commercial building use?

In the US , large office buildings (those with more than 100,000 square feet) use an average of 20 kilowatt-hours ( kWh ) of electricity and 24 cubic feet of natural gas per square foot annually.

How many watts is a square foot?

Divide the wattage consumed in the room by its area in square feet to calculate watts per square foot. In our example, 650 watts divided by 192.89 square feet is 3.37 watts per square feet.

How much electricity does a big box store use?

Big-box stores spend on average $190,000 on electricity bills per year. The report estimates that solar could offset electricity use by 42 percent — saving these businesses $8.2 billion annually.

How much electricity does a small office use?

Each year small and midsize office buildings in the US (those under 100,000 square feet) use an average of 15 kilowatt-hours ( kWh ) of electricity and 38 cubic feet of natural gas per square foot.

What consumes the most energy in a commercial building?

Lighting is the largest end use of electricity in commercial buildings, and many buildings target lighting for energy savings through energy-efficient light sources and advanced lighting technologies.

How many kilowatts do I need for a 2000 square foot house?

The average 2,000 sq. ft. U.S. home uses around 1,000 kWh of energy per month or about 32 kWh per day.

How many watts does a 2000 square foot house use?

Examples of PV Power Needed to Power Different Sized Homes

How many watts per square foot for a commercial building?

Below is what I normally figure for a service size on commercial buildings when square footage is the only thing given to me. Note: No Electric heat. If electric heat then add approximately 30btu/sf.

How many kWh does a mall use per square foot?

A retail mall consumes approximately 23 kWh/square foot on average. A public assembly building consumes approximately 15 kWh/square foot. A warehouse consumes approximately 9 kWh/square foot.

Which is the correct method for watt per square feet?

Watt per square feet method. Today I will explain the third method for lighting design which is “ Watt per square feet method” as follows. The Whole Building Method.

How many kWh does a retail building use?

Here’s what the breakdown looks like for a retail building: Approximately 9 kWh/square foot are consumed by lighting. Approximately 5 kWh/square foot are consumed by refrigeration & equipment. Approximately 3.5 kWh/square foot are consumed by cooling.