howmuchsun

Solar panel angle in Odense

In Odense, fixed panels collect the most energy over a year tilted 44° from horizontal and facing south. But anything between 35° and 55° is within 2% of the best, so the pitch you already have is probably fine.

What is your roof worth?

Of the maximum 98% facing south, 30° pitch
Best here 44° facing south
Good-enough range 35–55° within 2% of the maximum

Every roof, scored

Percentage of the maximum possible annual yield, for each combination of orientation and pitch in Odense.

Percentage of maximum annual yield by roof orientation (rows) and pitch (columns).
Roof faces 15° 30° 45° 60° 90°
South 77% 90% 98% 100% 97% 76%
South-east / south-west 77% 86% 91% 91% 88% 69%
East / west 77% 76% 73% 69% 64% 50%
North-east / north-west 77% 66% 54% 45% 38% 30%
North 77% 62% 46% 33% 24% 20%

Why "tilt equals your latitude" is wrong here

The rule of thumb says tilt your panels at your latitude — 55° for Odense. The real optimum is 44°, 11° lower than the rule suggests.

Two reasons, both geometric. Summer days are much longer than winter ones, so the year's energy is weighted toward a higher sun than the annual average. And a low winter sun sends its light through a long slant of atmosphere, arriving weak — tilting to catch it costs more in summer than it wins in winter.

In fairness to the rule: following it here would cost you only 1.6%. It is wrong, but it is not expensive.

Seasonal angles

If you can adjust your panels twice a year, these are the angles to use. Most people should not bother — the gain is small and the ladder is real.

SettingTiltFacing
Fixed, all year44°south
Summer26°south
Winter73°south
Flat on the ground

A flat installation here keeps 77% of the maximum; mounted vertically on a wall, 76%.

Other cities in Denmark

Assumptions

  • These are angles and percentages, never kilowatt-hours. Optimal angles are driven by geometry and are robust. Absolute energy output depends on measured irradiance, cloud, soiling and hardware, none of which are modelled here.
  • Clear sky, no shading. Trees, chimneys, neighbouring buildings and terrain are ignored, and they can dominate everything on this page.
  • Fixed panels. Trackers follow the sun and change the answer entirely.
  • Ordinary ground. Reflectance is taken as 0.2, typical for grass and soil. Snow reflects far more and favours steeper tilts.

Full methodology, sources and known limitations