1. What is an LED Cost Savings Calculator?

Definition: This calculator estimates the cost savings when switching from traditional lighting to energy-efficient LED lighting.

Purpose: It helps homeowners and businesses quantify the financial benefits of upgrading to LED lighting.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( W_{\text{old}} \) — Wattage of old light (watts)
• \( W_{\text{new}} \) — Wattage of new LED light (watts)
• \( \text{Hours} \) — Usage hours
• \( \text{Rate} \) — Electricity rate (dollars per kWh)

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

3. Importance of LED Cost Savings Calculation

Details: Understanding potential savings helps justify the upfront cost of LED bulbs and plan energy efficiency upgrades.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why divide by 1000 in the formula?
A: This converts watt-hours to kilowatt-hours (kWh), the standard unit for electricity billing.

Q2: What's a typical electricity rate?
A: Rates vary by location but average $0.12-$0.20 per kWh in the US. Check your utility bill for exact rates.

Q3: How do I find my current bulb wattage?
A: Check the label on the bulb or fixture. Common incandescent bulbs are 40W, 60W, 75W, or 100W.

Q4: What LED wattage replaces a 60W incandescent?
A: Typically 8-12W LED provides equivalent brightness to a 60W incandescent.

Q5: Does this include bulb replacement costs?
A: No, this calculates energy savings only. Factor in LED bulb costs separately for complete ROI analysis.