Solar Pv Kwh Calculator

Solar PV kWh Formula:

\[ kWh = \text{System Size (kW)} \times \text{PSH} \times \text{Efficiency} \]

Estimated Energy Output (kWh):

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1. What is the Solar PV kWh Calculator?

The Solar PV kWh Calculator estimates the energy output of a solar photovoltaic system based on system size, peak sun hours, and efficiency. It provides a quick way to calculate potential energy production for solar installations.

2. How Does the Calculator Work?

The calculator uses the solar PV kWh formula:

\[ kWh = \text{System Size (kW)} \times \text{PSH} \times \text{Efficiency} \]

Where:

\( \text{System Size} \) — Solar PV system capacity in kilowatts (kW)
\( \text{PSH} \) — Peak Sun Hours, representing equivalent hours of full sun per day
\( \text{Efficiency} \) — System efficiency factor (typically 0.75-0.85 for grid-tied systems)

Explanation: The equation calculates daily energy production by multiplying system capacity by available sunlight hours and accounting for system losses.

3. Importance of kWh Calculation

Details: Accurate energy production estimation is crucial for sizing solar systems, calculating return on investment, and determining energy savings potential.

4. Using the Calculator

Tips: Enter system size in kW, peak sun hours for your location, and system efficiency as a decimal (e.g., 0.85 for 85% efficiency). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are typical peak sun hours?
A: Peak sun hours vary by location and season, typically ranging from 3-7 hours per day depending on geographic location and weather conditions.

Q2: What efficiency value should I use?
A: Typical system efficiencies range from 0.75-0.85, accounting for inverter losses, temperature effects, wiring losses, and soiling.

Q3: Is this for daily or annual production?
A: The calculator provides daily energy production. Multiply by 365 for annual estimates, though seasonal variations should be considered.

Q4: Does this account for panel degradation?
A: No, this calculator provides current production estimates. Most solar panels degrade about 0.5-1% per year.

Q5: Can I use this for battery sizing?
A: This provides energy production estimates which can help with battery sizing, but additional factors like depth of discharge and autonomy days must be considered.