Formulas

The Energy Yield Calculator estimates annual energy production:

• Energy Yield (\( E \)) = \( P \times H \times (1 – D) \)
• Where:
  • \( P \) = Power output (kW)
  • \( H \) = Operational hours per year (hours)
  • \( D \) = Downtime (decimal, e.g., 5% = 0.05)
• Capacity Factor (\( CF \)) = \( \frac{E}{P \times 8760} \)
• Where 8760 = Total hours in a year

How to Use

1. Enter the power output (in kW) in the “Power Output” field.
2. Enter the operational hours (in hours/year) in the “Operational Hours” field.
3. Enter the downtime (in %) in the “Downtime” field.
4. Optionally, click an adjust button to set typical values (e.g., Low Power).
5. Click “Calculate Yield” to see the estimated energy yield and capacity factor.
6. Scroll to the “Results” section for details.

Examples

1. Example 1: Power = 100kW, Hours = 4000h, Downtime = 5%
   Yield ≈ 100 × 4000 × (1 – 0.05) = 380,000 kWh; CF ≈ 380,000 / (100 × 8760) ≈ 43.38%
2. Example 2: Power = 500kW, Hours = 6000h, Downtime = 10%
   Yield ≈ 500 × 6000 × (1 – 0.10) = 2,700,000 kWh; CF ≈ 2,700,000 / (500 × 8760) ≈ 61.64%
3. Example 3: Power = 50kW, Hours = 3000h, Downtime = 0%
   Yield ≈ 50 × 3000 × (1 – 0) = 150,000 kWh; CF ≈ 150,000 / (50 × 8760) ≈ 34.25%