Solar panels are installed on the north and south sides of the roof

Do north-facing solar panels work in the northern hemisphere?

North-facing solar panels can work but are generally not recommended in the Northern Hemisphere due to significantly reduced energy production (45-60% of optimal). However, they may be viable in locations with very high electricity rates, abundant sunshine, or when combined with other orientations in a multi-array system.

Why do solar panels have a northern orientation?

The northern orientation aligns the panels to face directly towards the north. This setup is particularly effective in the Southern Hemisphere, as it allows panels to capture the most direct sunlight during the middle of the day when the sun is at its highest point.

Which hemisphere should solar panels face?

In the Northern Hemisphere, solar panels should face true south for maximum annual energy production. This orientation provides optimal exposure to sunlight throughout the day and across all seasons.

What direction should solar panels face?

Solar panels should face true south, not magnetic south. The difference between these directions, called magnetic declination, can vary by up to 30 degrees depending on your location. Use NOAA’s magnetic declination calculator to find your local value and adjust accordingly.