☀️ PV Calculator — Flat / Pitched Roof
Geometry · Roof Slope (2 planes) · Annual Yield · PVGIS EU JRC
🇵🇱
Polski
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0
kWh/yr
0
·
0
kWp ·
📊 Model
🗺 Location — click on map
φ Szerokość (N)
λ Długość (E)
✓ Apply coordinates
52.22970°N
21.01220°E
🗺 GMaps
🧭 Panel azimuth
°
📐 Panel tilt (relative to roof)
Panel tilt β (relative to roof)
35°
Abs. tilt from horizon:
35.0°
🏠 Roof slope
Slope along azimuth
= along azimuth.
Cross slope
= perpendicular. β
kept absolute
.
Slope along azimuth
0°
Cross slope
0°
Eff. panel tilt (from horizon):
35.0°
β relative to roof (kept):
35°
Eff. azimuth:
180°
📏 Panel dimensions
Width W
1953 mm
Height H (along slope)
1134 mm
Panel power
500 Wp
Efficiency
20.5%
🔢 Panel array
Columns (horizontal)
−
3
+
Rows (depth)
−
4
+
Panels
12 szt
Power
4.80 kWp
Active area
0.0 m²
📏 Row spacing
Min clearance G and row pitch R (0 = auto from shadow calc).
G — min. clearance [mm]
−
150
+
R — row pitch [mm]
↺ auto
Leave empty = auto (shadow-free in December)
Calculated R (auto)
—
Used R
—
Clearance G
—
🛰 PVGIS EU JRC — satellite data
Data year
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
Tilt angle (°)
Azimuth — PVGIS (°)
0=south, -90=east, +90=west
⟳ Sync from calculator
eff. β=35° Az=0° · 52.2297°N 21.0122°E
🔄 Fetch PVGIS data
⚠️ Error
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✅ PVGIS active
E_y (annual)
PR
✕ Clear PVGIS
💰 ROI Calculator
Investment Cost
Electricity Price (per kWh)
Inverter Consumption (W)
Panel Degradation (%/year)
Annual Price Increase (%)
💡 Switch to ROI Analysis tab to see detailed calculations
📊 Geometry results
📐 Side view
🔼 Top view
🧊 3D view
🌤 Radiation
⚡ Yield
🧮 Formulas
💰 ROI Analysis
3D view — roof with panels. Drag to rotate, scroll to zoom.
🖱 Drag = rotate · Wheel = zoom
📋 Monthly table
—
📊 Model
Month
Irradiation
Production
Days
kWh/day