Solar PV Generation Calculator

PV Generation Formula:

\[ Generation = kW \times Hours \times 365 \]

Generation (kWh/year):

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1. What is a Solar PV Generation Calculator?

Definition: This calculator estimates the annual electricity generation of a solar photovoltaic (PV) system based on its size and average daily sunlight hours.

Purpose: It helps homeowners, businesses, and solar installers estimate potential energy production from solar panels.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ Generation = kW \times Hours \times 365 \]

Where:

\( Generation \) — Annual energy production (kWh/year)
\( kW \) — System size in kilowatts
\( Hours \) — Average daily sunlight hours
\( 365 \) — Days in a year

Explanation: The system size multiplied by daily sunlight hours gives daily production, which is then multiplied by 365 days for annual production.

3. Importance of PV Generation Calculation

Details: Accurate generation estimates help determine system sizing, return on investment, and energy savings potential.

4. Using the Calculator

Tips: Enter the system size in kW and average daily sunlight hours (default 4.5 h/day). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are typical sunlight hours?
A: Most locations average 4-5 peak sun hours daily, but this varies by location and season.

Q2: Does this account for system losses?
A: No, actual production will be about 10-20% less due to temperature, shading, and other factors.

Q3: How do I find my local sunlight hours?
A: Check solar maps or consult local solar installers for location-specific data.

Q4: What's the difference between kW and kWh?
A: kW measures power capacity, kWh measures energy production over time.

Q5: How accurate is this estimate?
A: It provides a rough estimate; professional solar assessments are more precise.