{"id":1133,"date":"2012-03-01T15:17:52","date_gmt":"2012-03-01T05:47:52","guid":{"rendered":"http:\/\/www.solarquotes.com.au\/blog\/?p=1133"},"modified":"2017-05-02T10:55:07","modified_gmt":"2017-05-02T00:25:07","slug":"how-does-temperature-affect-your-solar-inverter-power","status":"publish","type":"post","link":"https:\/\/www.solarquotes.com.au\/blog\/how-does-temperature-affect-your-solar-inverter-power\/","title":{"rendered":"How Does Temperature Affect Your Solar Inverter Power?"},"content":{"rendered":"
\"Inverter<\/a>

Don’t mount your inverter where the sun can cook it!<\/p><\/div>\n

If you’ve been reading this blog for any length of time you are probably already aware of how high ambient temperatures negatively affect solar panel performance<\/a>.<\/p>\n

But did you know that when it gets hot outside, those scorching Aussie temperatures can also cause the efficiency of your solar inverter<\/a> to drop?<\/p>\n

Many inverters are programmed to purposefully reduce their power output if they sense that they are overheating. This “feature” is called inverter temperature derating <\/strong>and they do it to protect their sensitive electronics from extreme temperatures.<\/p>\n

Way back in the early days of grid connect solar power, in about 2002!, many inverters started to derate when the ambient temperature got over 25\u00b0C. Thankfully for us Aussies, technology has improved some and most decent inverters in 2012 won’t start to derate until the ambient temperature hits at \u00a0least 40\u00b0C.<\/p>\n

So how do you find out the temperature performance of your inverter, and do you need to worry about it?<\/p>\n

It is actually really hard to find the temperature derating specs for most inverters, as it is not a standard entry on most inverter data sheets. However most inverter’s product manuals will have the info buried in them.<\/p>\n

Here is the Temperature Derating Curve for a top quality, modern, tansformerless 5kW inverter, the Sunny Boy 5000TL<\/p>\n

\"The<\/a>

Derating Curve for Sunny Boy SB5000TL (Transformerless)<\/p><\/div>\n

As you can see\u00a0this inverter starts to derate at an ambient temperature of 50\u00b0C. \u00a0I don’t know where you live, but here in Adelaide, the highest ever recorded temperature was just short of 47\u00b0C. So if you are lucky enough to a) live in Radelaide and b) have an SB5000TL inverter, then as long as your inverter is placed in a shaded position it should never start to derate.<\/p>\n

The critical point in the paragraph above is that your inverter should never be placed where the sun can cook it. I walk past solar installations almost every day where I see inverters positioned in direct sunlight. Always place your inverter in a shaded spot. It will perform better and last a lot longer.<\/p>\n

Now let’s look at another 5kW inverter with a slightly worse temperature performance:<\/p>\n

\"The<\/a>

The Xantrex GT5 temperature derating curve<\/p><\/div>\n

Here you can see that the Xantrex GT5.0 Inverter starts to derate at an ambient temperature of 40\u00b0C.<\/p>\n

Does this mean that we should pay more for the Sunny Boy?<\/p>\n

To answer that question you have to ask yourself how often it gets above 40\u00b0C where you live.<\/p>\n

In Adelaide you probably get about 10 days per year over 40\u00b0C. So with the Xantrex I would lose about 5% of my power for 10 days of the year. This would cost me about $3 per year in lost income! Not worth worrying about I would argue!<\/p>\n

What you need to know about inverters and temperature:<\/strong><\/p>\n

    \n
  1. Many inverters do derate their power output if the ambient temperature gets too high. But if the inverter is any good, it’s got to get bloody hot before it starts to derate.<\/li>\n
  2. The derating temperature is usually buried in the product manual.<\/li>\n
  3. The inverter should never be placed in direct sunlight or in an unventilated room or box.<\/li>\n
  4. The inverter derating will only only affect you if where you live actually ever gets hotter than the derating temperature.<\/li>\n
  5. \u00a0If your inverter is only going to derate a few days a year then your lost power is such a small amount it isn’t worth worrying about.<\/li>\n<\/ol>\n

    Here are the derating temperatures for some inverters that are popular in Australia:<\/strong><\/p>\n

    Modern SMA transformerless inverters: usually start to derate at 50\u00b0C.<\/p>\n

    Modern SMA HF Transformer based inverters don’t derate at all.<\/p>\n

    Samil Power River Inverters derate at 45\u00b0C<\/p>\n

    Delta Soliva inverters derate at 50\u00b0C<\/p>\n

     <\/p>\n","protected":false},"excerpt":{"rendered":"

    If you’ve been reading this blog for any length of time you are probably already aware of how high ambient temperatures negatively affect solar panel performance. But did you know that when it gets hot outside, those scorching Aussie temperatures can also cause the efficiency of your solar inverter to drop?<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[48],"tags":[64,81,79,70],"class_list":["post-1133","post","type-post","status-publish","format-standard","hentry","category-solar-inverters","tag-efficiency","tag-samil-power","tag-sma","tag-temperature","entry"],"acf":[],"yoast_head":"\nHow Does Temperature Affect Your Solar Inverter Power? - SolarQuotes Blog<\/title>\n<meta name=\"description\" content=\"Did you know that when it gets hot outside, those scorching Aussie temperatures can cause the efficiency of your solar inverter to drop?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.solarquotes.com.au\/blog\/how-does-temperature-affect-your-solar-inverter-power\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Does Temperature Affect Your Solar Inverter Power?\" \/>\n<meta property=\"og:description\" content=\"Did you know that when it gets hot outside, those scorching Aussie temperatures can cause the efficiency of your solar inverter to drop?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.solarquotes.com.au\/blog\/how-does-temperature-affect-your-solar-inverter-power\/\" \/>\n<meta property=\"og:site_name\" content=\"SolarQuotes Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SolarQuotes\/\" \/>\n<meta property=\"article:published_time\" content=\"2012-03-01T05:47:52+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-05-02T00:25:07+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2012\/03\/smainverter.jpg\" \/>\n<meta name=\"author\" content=\"Finn Peacock\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@FinnPeacock\" \/>\n<meta name=\"twitter:site\" content=\"@solar_quotes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/\"},\"author\":{\"name\":\"Finn Peacock\",\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/#\\\/schema\\\/person\\\/495c35fb3086e6ef93220dcf2472b178\"},\"headline\":\"How Does Temperature Affect Your Solar Inverter Power?\",\"datePublished\":\"2012-03-01T05:47:52+00:00\",\"dateModified\":\"2017-05-02T00:25:07+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/\"},\"wordCount\":666,\"commentCount\":26,\"publisher\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/#primaryimage\"},\"thumbnailUrl\":\"http:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/wp-content\\\/uploads\\\/2012\\\/03\\\/smainverter.jpg\",\"keywords\":[\"Efficiency\",\"samil power\",\"sma\",\"Temperature\"],\"articleSection\":[\"Solar Inverters\"],\"inLanguage\":\"en-AU\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/\",\"url\":\"https:\\\/\\\/www.solarquotes.com.au\\\/blog\\\/how-does-temperature-affect-your-solar-inverter-power\\\/\",\"name\":\"How Does Temperature Affect Your Solar Inverter Power? 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The CEC or European Efficiency numbers that I talked about are a much better number to use when comparing solar inverters. And for most people they will be\u2026","rel":"","context":"In "Solar Inverters"","block_context":{"text":"Solar Inverters","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-inverters\/"},"img":{"alt_text":"inverter with a trippy arrow","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2012\/01\/inverter-sine-wave.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":71412,"url":"https:\/\/www.solarquotes.com.au\/blog\/sungrow-inverters-deep-dive\/","url_meta":{"origin":1133,"position":4},"title":"A Deep Dive Into Sungrow Solar Inverters","author":"Ronald Brakels","date":"March 9, 2023","format":false,"excerpt":"Sungrow is either the largest or second-largest solar inverter manufacturer in the world.\u00a0 They're duking it out with Huawei, and it isn't clear who's winning.\u00a0 Sungrow has a range of residential inverters we consider reliable and well-supported in Australia, and are one of the dozen manufacturers we recommend using.\u00a0 This\u2026","rel":"","context":"In "Solar Inverters"","block_context":{"text":"Solar Inverters","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-inverters\/"},"img":{"alt_text":"An in-depth look at Sungrow solar inverters","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/03\/sungrow-specs-dive.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/03\/sungrow-specs-dive.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/03\/sungrow-specs-dive.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/03\/sungrow-specs-dive.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2023\/03\/sungrow-specs-dive.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":69353,"url":"https:\/\/www.solarquotes.com.au\/blog\/solar-panels-summer-test-mb2771\/","url_meta":{"origin":1133,"position":5},"title":"Solar Panels Vs. 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As it's reasonably new, I've been keeping fairly close\u2026","rel":"","context":"In "General Solar & Storage News"","block_context":{"text":"General Solar & Storage News","link":"https:\/\/www.solarquotes.com.au\/blog\/category\/solar-battery-news\/"},"img":{"alt_text":"Solar power system heat test","src":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2022\/12\/solar-summer-test.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2022\/12\/solar-summer-test.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2022\/12\/solar-summer-test.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2022\/12\/solar-summer-test.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.solarquotes.com.au\/blog\/wp-content\/uploads\/2022\/12\/solar-summer-test.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"_links":{"self":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/1133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/comments?post=1133"}],"version-history":[{"count":12,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/1133\/revisions"}],"predecessor-version":[{"id":10968,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/posts\/1133\/revisions\/10968"}],"wp:attachment":[{"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/media?parent=1133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/categories?post=1133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.solarquotes.com.au\/blog\/wp-json\/wp\/v2\/tags?post=1133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}