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Energy Savings Calculation for Lighting

By Dave Rongey - Summary:

How to Calculate Energy Savings for Lighting: Is there any difference in the energy savings if I replace light bulbs in a regular 120 volt fixture or in a 12 Vac low voltage fixture?

Calculating Energy Savings

Electrical Question: Is there any difference in the energy savings calculation if I replace light bulbs in a regular line voltage (120Vac) fixture or in a low-voltage (12Vac) fixture?

Thank you for your response.

Additional Comments: Great site.
Background: Doug, a Homeowner from West Palm Beach, Florida.

Dave’s Reply:
Thanks for your electrical question Doug.

Energy Savings Calculation

Note: It is important to note that watts are watts, no matter what the voltage will be.

How to Calculate Energy Savings for Lighting

Watts x Hours x Cost Per KWH /1000 = Cost/Savings

Note: Keep in  mind that the KWH Rate is Cost Per 1000 Watt Hours so you will have to divide the results by 1000.

The Advantages of New Technologies in Lighting
The energy saving advantages of new technology lighting is that the amount of light that is produced is comparable to most older lights, except the new lights consume less watts while producing a high lumen amount of light.

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