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In the dark about real-world shading
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<blockquote data-quote="binky" data-source="post: 553981" data-attributes="member: 490"><p>Predicting outputs from the panels is relatively straight forward, and based on some quite comprehensive dates sets that date back decades. Most software is a little 'gloomy' ie underforcasts a bit, due to panels and inverters moving faster than software programmers. I used to use professional software, it was always interesting how different panels worked better with different inverters, but even then, the differences were mostly in the region of small percentages. Shading adds a whole new dimension to the differences, SMA would frequently outperform cheaper inverters, without the additional costs of microinverters or optimisers. </p><p></p><p>Consumption is a much harder thing to predict, there's several standardised MCS options, such as retired couple at home all day, or working couple with kids. Ultimately though, you really want to change energy demand to suit your generation/ battery charging, rather than just use energy like you used to. So consumption figures can only be 'guidance'. You should do better if you modify your energy consumption patterns.</p></blockquote><p></p>
[QUOTE="binky, post: 553981, member: 490"] Predicting outputs from the panels is relatively straight forward, and based on some quite comprehensive dates sets that date back decades. Most software is a little 'gloomy' ie underforcasts a bit, due to panels and inverters moving faster than software programmers. I used to use professional software, it was always interesting how different panels worked better with different inverters, but even then, the differences were mostly in the region of small percentages. Shading adds a whole new dimension to the differences, SMA would frequently outperform cheaper inverters, without the additional costs of microinverters or optimisers. Consumption is a much harder thing to predict, there's several standardised MCS options, such as retired couple at home all day, or working couple with kids. Ultimately though, you really want to change energy demand to suit your generation/ battery charging, rather than just use energy like you used to. So consumption figures can only be 'guidance'. You should do better if you modify your energy consumption patterns. [/QUOTE]
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In the dark about real-world shading
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