{"id":9904,"date":"2026-04-13T08:10:17","date_gmt":"2026-04-13T08:10:17","guid":{"rendered":"https:\/\/etway.it\/?p=9904"},"modified":"2026-07-02T10:59:45","modified_gmt":"2026-07-02T10:59:45","slug":"the-hidden-cost-of-photovoltaics-not-only-investment-and-production","status":"publish","type":"post","link":"https:\/\/etway.it\/en\/2026\/04\/13\/the-hidden-cost-of-photovoltaics-not-only-investment-and-production\/","title":{"rendered":"The Hidden Cost of Solar Power: It’s Not Just About Investment and Energy Production"},"content":{"rendered":"\t\t
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The true cost becomes apparent over the years<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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When evaluating a photovoltaic system, the focus is almost always on two main factors: the initial cost and the expected output. This is an understandable approach, because these figures are readily available, easy to compare, and often decisive in the final decision. However, there is a third variable\u2014less obvious but just as crucial in the long run\u2014the cost of maintaining that output over time. <\/p>

This point becomes clear when we consider an often-overlooked issue: the cleaning of photovoltaic modules.<\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Cleaning Solar Panels: An Underestimated Issue<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Over time, dust, smog, pollen, organic debris, and atmospheric agents accumulate on the surface of the panels. Even in seemingly \u201cclean\u201d environments, this phenomenon is inevitable. The result is a gradual reduction in efficiency: the less light that reaches the cells, the less energy is produced. In some cases, the loss can reach significant percentages, especially in urban or industrial areas. <\/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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At this point, an operational decision comes into play: to clean or not to clean.<\/strong><\/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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Cleaning the modules involves a cost. Whether it involves manual work, automated systems, or outsourced services, it is still a recurring expense. Not only that: in some systems\u2014such as those on hard-to-reach rooftops or installations integrated into complex urban environments\u2014cleaning can become logistically complicated and therefore even more expensive. <\/p>

For an average 20-kW system, professional cleaning generally costs between 400 and 600 euros per service<\/strong>, depending on the roof\u2019s accessibility and the condition of the system.On average, cleaning is recommended 1\u20132 times a year<\/strong>, although in urban areas or areas particularly prone to dirt, it may be advisable to clean more frequently.<\/p>

On the other hand, failing to take action means accepting a loss in performance. And over time, this loss translates into lower revenue or fewer energy savings. In other words, even \u201cdoing nothing\u201d has a cost, albeit a less visible one. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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There's always a cost, even when you can't see it<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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This leads to a fundamental point: costs exist in both scenarios. The difference is that one is often explicit (maintenance), while the other is implicit (loss of production). <\/p>

Many investments are evaluated solely on the basis of the initial price and theoretical performance. But in the case of solar power, ignoring operating costs means having an incomplete picture<\/strong>. Even small efficiency losses, if they persist over time, can add up to significant amounts. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Total Cost of Ownership: The True Metric to Consider<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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This is precisely where the concept of total cost of ownership (TCO) comes into play. This principle encourages us to look beyond the purchase price and consider all the costs associated<\/strong> with an asset throughout its entire life cycle: installation, operation, maintenance, long-term efficiency, and, finally, eventual disposal. <\/p>

In the photovoltaic sector, TCO is particularly important. A system is designed to operate for 20\u201330 years, and even small inefficiencies, if sustained over time, can have a significant economic impact. A 5\u201310% loss in annual production, accumulated over decades, can easily exceed the initial cost of regular maintenance. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Designing for Durability: The Importance of Initial Choices<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Furthermore, not all systems are the same. Some design solutions already take these aspects into account: angles that promote self-cleaning with rain, materials less prone to dirt buildup, and vertical or semi-vertical configurations that drastically reduce the need for maintenance. In these cases, the operating costs associated with cleaning can be significantly lower than those of traditional systems. <\/p>

This means that the evaluation of a plant should not stop at the question \u201cHow much does it produce?\u201d, but should evolve into a broader consideration: \u201cHow much does it cost me to maintain this level of production over time?\u201d<\/strong><\/p>

It\u2019s a subtle but significant difference. Because it shifts the focus from a static view to a dynamic one, from an upfront cost to an overall investment. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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Ultimately, choosing a solar power system is not just an immediate technical or financial decision, but a long-term strategic choice.<\/strong> Taking into account hidden costs\u2014such as maintenance and efficiency losses\u2014provides a more realistic and comprehensive view of the investment\u2019s value.<\/p>

And over time, this awareness makes all the difference.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

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<\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

The true cost becomes apparent over the years When evaluating a photovoltaic system, the focus is almost always on two main factors: the initial cost and the expected output. This is an understandable approach, because these figures are readily available, easy to compare, and often decisive in the final decision. However, there is a third […]<\/p>\n","protected":false},"author":4,"featured_media":9405,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","_joinchat":[],"footnotes":""},"categories":[1],"tags":[175,150,149,147,174,42,145,40,162,41,148,146,56],"class_list":["post-9904","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-categorizzato","tag-camping-en","tag-clean-energy","tag-corten-steel","tag-design-photovoltaic-furniture","tag-glamping-en","tag-innovation","tag-photovoltaic-planter","tag-renewable-energy","tag-salvaterra-en","tag-sustainability","tag-sustainable-design","tag-sustainable-energy","tag-vertical-photovoltaics"],"blocksy_meta":[],"yoast_head":"\nThe Hidden Cost of Solar Power<\/title>\n<meta name=\"description\" content=\"In the solar power sector, it\u2019s not just investment and production that matter, but also the costs of maintaining efficiency over 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