1. What is an LED Lighting Energy Savings Calculator?

Definition: This calculator estimates the cost savings from switching to LED lighting by comparing energy consumption with traditional lighting.

Purpose: It helps homeowners and businesses evaluate the financial benefits of upgrading to energy-efficient LED lighting.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W_{\text{old}} \) — Wattage of old lighting (watts)
• \( W_{\text{LED}} \) — Wattage of LED lighting (watts)
• \( \text{Hours} \) — Usage time (hours)
• \( \text{Rate} \) — Electricity cost ($ per kWh)

Explanation: The difference in wattage multiplied by usage hours gives watt-hours saved, converted to kWh, then multiplied by electricity rate.

3. Importance of Energy Savings Calculation

Details: Calculating potential savings helps justify the upfront cost of LED upgrades and demonstrates long-term cost benefits.

4. Using the Calculator

Tips: Enter the wattage of your current lights, the LED replacement wattage, daily usage hours, and your electricity rate (default $0.12/kWh).

5. Frequently Asked Questions (FAQ)

Q1: How accurate are these savings estimates?
A: Estimates are based on input values. Actual savings may vary based on real-world usage patterns and electricity rate changes.

Q2: What's a typical LED wattage replacement?
A: A 60W incandescent can typically be replaced with a 9-12W LED bulb for similar light output.

Q3: Should I include all lights in my calculation?
A: For whole-house estimates, calculate each bulb type separately then sum the results.

Q4: How do I find my electricity rate?
A: Check your utility bill for the cost per kilowatt-hour (kWh) in the charges breakdown.

Q5: Does this include the cost of LED bulbs?
A: No, this calculates energy savings only. Subtract bulb costs from annual savings to determine payback period.