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Green Renewable Energy Forum
Solar PV Forum
Relative Low Performance of Domestic PV System
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<blockquote data-quote="binky" data-source="post: 537340" data-attributes="member: 490"><p>Short answer is 'size matters' with solar arrays. You get other affects on performance, like being in a valley can mean you get colder misty air hanging around, more frost cover etc. I never really liked installing solar in winter, despite everything working as it should customers would quite often be disappointed with performance. They kind of expect 4kw from the array even when the weather is poor. I was quite surprised this morning to see my own array, which is south facing but completely shaded this time of year was still outputting 270W with a heavy covering of frost. I would keep an eye on things going into spring/ end of February. The longer days will probably make a big difference.</p></blockquote><p></p>
[QUOTE="binky, post: 537340, member: 490"] Short answer is 'size matters' with solar arrays. You get other affects on performance, like being in a valley can mean you get colder misty air hanging around, more frost cover etc. I never really liked installing solar in winter, despite everything working as it should customers would quite often be disappointed with performance. They kind of expect 4kw from the array even when the weather is poor. I was quite surprised this morning to see my own array, which is south facing but completely shaded this time of year was still outputting 270W with a heavy covering of frost. I would keep an eye on things going into spring/ end of February. The longer days will probably make a big difference. [/QUOTE]
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Green Renewable Energy Forum
Solar PV Forum
Relative Low Performance of Domestic PV System
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