{"id":20866,"date":"2026-11-05T11:00:45","date_gmt":"2026-11-05T10:00:45","guid":{"rendered":"https:\/\/sunelements.de\/?p=20866"},"modified":"2026-11-05T11:19:59","modified_gmt":"2026-11-05T10:19:59","slug":"solar-fence-in-winter-generating-electricity-when-the-sun-is-low-in-the-sky","status":"publish","type":"post","link":"https:\/\/sunelements.de\/en\/2026\/11\/05\/solar-fence-in-winter-generating-electricity-when-the-sun-is-low-in-the-sky\/","title":{"rendered":"Solar Fence in Winter: Generating Electricity When the Sun Is Low in the Sky"},"content":{"rendered":"\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"SunElements-Blog:\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Photovoltaics are often associated with long summer days and intense sunlight. But solar panels also generate electricity in the winter. A PV fence with panels arranged nearly vertically produces an interesting yield profile: The sun is significantly lower in the sky, the panels are illuminated differently than a flat-tilted rooftop system, and bifacial solar panels can also harness light from their rear side.<\/p>

However, the actual amount of electricity generated does not depend solely on the season. Location, orientation, shading, weather, and the surroundings of the PV fence all play an important role.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why Photovoltaic Systems Generate Electricity Even in Winter<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Photovoltaics do not require summer heat, but rather sunlight. As soon as enough light hits the solar cells, electrical energy can be generated.<\/p>

In winter, there are fewer hours of sunshine, and solar radiation is lower overall. As a result, the absolute energy yield of a PV system is typically lower during the winter months than in summer.<\/p>

Low temperatures, however, are not a disadvantage for the solar cells themselves. Photovoltaic modules generally operate more efficiently at lower cell temperatures than in extreme heat.<\/p>

A cold, sunny winter day can therefore certainly produce good peak power output\u2014even if the total daily yield remains lower due to the shorter days.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Low winter sun angles can be advantageous for vertical PV panels<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The sun’s position changes significantly throughout the year.<\/p>

In summer, the sun is high in the sky. In winter, its path is much lower above the horizon. This is precisely where nearly vertical PV panels differ from traditional, tilted rooftop systems.<\/p>

When low-angle sunlight strikes a vertical module surface at a more favorable angle, the system can, relatively speaking, generate more power during the winter months than in the height of summer.<\/p>

However, this does not mean that a PV fence generates more electricity in winter than in summer. What matters much more is the distribution of energy output throughout the year.<\/p>

While traditional rooftop systems typically achieve their highest output during the sunniest months, a vertical PV surface can provide a more balanced seasonal output profile.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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What does \"bifacial\" mean in the context of a PV fence?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The SunElements PV fence uses bifacial glass-on-glass modules.<\/p>

Unlike traditional monofacial solar modules, bifacial modules can use light to generate electricity not only from the front but also from the back.<\/p>

This technology is particularly advantageous for a freestanding PV fence. Sunlight can strike one side of the module directly, while reflected and diffuse light also reaches the other side.<\/p>

Just how much this additional yield actually amounts to depends heavily on the conditions at the specific location.<\/p>

Factors that influence this include:<\/p>