1. What is Generator Sizing?

Generator sizing is the process of determining the appropriate generator capacity needed to power your home appliances. It involves calculating both the running watts (continuous power needed) and starting watts (extra power needed when appliances start up).

2. How Does the Calculator Work?

The calculator uses the generator sizing formula:

Where:

• Running Watts — Continuous power required to keep appliance running
• Starting Watts — Extra power needed during startup (typically 1.5-3x running watts)

Explanation: The total wattage calculation ensures your generator can handle both the continuous load and the initial surge when appliances start.

3. Importance of Proper Generator Sizing

Details: Proper generator sizing is crucial to ensure all appliances can run simultaneously without overloading the generator, while also preventing unnecessary overspending on an oversized unit.

4. Using the Calculator

Tips: Check appliance labels or manuals for running and starting wattage. For multiple appliances, calculate each one separately and sum the totals.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between running and starting watts?
A: Running watts is the continuous power needed, while starting watts is the temporary surge needed when motors start (typically higher).

Q2: Should I size my generator for running or starting watts?
A: Your generator must handle the highest starting wattage of any single appliance plus the running watts of all other appliances.

Q3: How much extra capacity should I add?
A: It's recommended to add 20-25% extra capacity to your calculated total for safety and future needs.

Q4: What if I can't find starting wattage for an appliance?
A: As a rule of thumb, starting watts are typically 1.5-3 times the running watts for motor-driven appliances.

Q5: Can I run my entire house on a generator?
A: Whole-house generators are available but require careful calculation of all appliances' power needs and professional installation.