{"id":10781,"date":"2025-08-19T09:00:00","date_gmt":"2025-08-19T09:00:00","guid":{"rendered":"https:\/\/keikengroup.com\/?p=10781"},"modified":"2026-10-20T09:08:01","modified_gmt":"2026-10-20T09:08:01","slug":"solar-panel-installation-mistakes-madrid","status":"publish","type":"post","link":"https:\/\/keikengroup.com\/en\/news\/solar-panel-installation-mistakes-madrid\/","title":{"rendered":"7 common mistakes to avoid when installing solar panels in Madrid"},"content":{"rendered":"<p>If you are thinking of installing solar panels here in Madrid, you are on the right track. With all the sunshine we get and rising electricity costs, solar is a smart decision. But, like any home improvement, it is important to get it right. Over the years we have seen people run into the same problems again and again \u2014 not because they didn&#8217;t care, but because nobody told them what to look out for.<\/p>\n<p>So if you are starting to plan a <a href=\"https:\/\/keikengroup.com\/en\/news\/solar-panels-add-value-property\/\"><strong>solar panel installation in Madrid<\/strong><\/a>, here are 7 common mistakes to avoid, based on real experience.<\/p>\n<h2>1. Not checking whether your roof is ready<\/h2>\n<p>Many people don&#8217;t think about this until it is too late. If your roof is old, damaged or not built to carry the extra weight, you could end up with leaks, sagging or having to remove the panels later to repair the roof underneath.<\/p>\n<p>It is better to check now than fix it later. Have your roof inspected first. If it is in good condition, great; if not, fix the problem before installing anything.<\/p>\n<p>Also read: <a href=\"https:\/\/keikengroup.com\/en\/news\/best-type-solar-panels-madrid\/\">Which solar panels are best for Madrid?<\/a><\/p>\n<h2>2. Choosing the wrong system size<\/h2>\n<p>It is not just about filling the roof with panels; you need the right system for your needs. Too small and you won&#8217;t see much saving; too large and you may spend more than necessary.<\/p>\n<p>Things to consider:<\/p>\n<ul>\n<li>What is your average monthly electricity consumption?<\/li>\n<li>Will you soon add a large energy user, such as an EV or electric heating?<\/li>\n<li>How much direct sunlight does your roof actually get?<\/li>\n<li>Can you sell surplus energy to the grid?<\/li>\n<li>Is your installer actually analysing your consumption, or just offering a standard set-up?<\/li>\n<\/ul>\n<p>It is worth taking your time to get this right.<\/p>\n<h2>3. Skipping the paperwork<\/h2>\n<p>Madrid has its own rules and procedures for solar installations. Permits and approvals are required, and while they are not a nightmare, ignoring them can cause delays or problems later. Make sure your installer handles this; a local company that knows how solar installation works in Madrid will save you time and stress.<\/p>\n<h2>4. Placing panels where they don&#8217;t get full sun<\/h2>\n<p>Even a little shade from a tree, chimney or another building can seriously reduce how much energy your system produces, and once installed, panels are not easy to move.<\/p>\n<p>How to avoid it:<\/p>\n<ul>\n<li>Watch carefully how the sun moves across your roof during the day.<\/li>\n<li>Prune trees or anything else that could cast shadows.<\/li>\n<li>Avoid shaded areas, even if they are only shaded for a few hours a day.<\/li>\n<li>Use tools or ask your installer for a proper shading analysis.<\/li>\n<li>Ask about microinverters if partial shading cannot be avoided.<\/li>\n<\/ul>\n<p>Where the panels go matters as much as how many you install.<\/p>\n<h2>5. Going for the cheapest equipment<\/h2>\n<p>We understand: solar involves a significant upfront cost, and it is tempting to save where you can. But cheap equipment means lower efficiency, a shorter service life and problems later. Choose well-reviewed brands: they last longer and perform better, which means greater savings over time.<\/p>\n<h2>6. Forgetting basic maintenance<\/h2>\n<p>Solar panels need little care, but they are not completely maintenance-free. Dirt, dust and debris can block sunlight, and systems can sometimes underperform without obvious signs.<\/p>\n<p>What helps:<\/p>\n<ul>\n<li>Clean the panels once or twice a year, especially if it hasn&#8217;t rained for a long time.<\/li>\n<li>Use the monitoring system to check how your panels are performing.<\/li>\n<li>If something seems wrong, don&#8217;t wait: ask your installer to check it.<\/li>\n<\/ul>\n<h2>7. Choosing the wrong installer<\/h2>\n<p>This may be the most important decision you make. A good installer takes the time to do things properly. A rushed or careless installation can lead to underperforming panels, roof problems or a system that doesn&#8217;t meet your expectations.<\/p>\n<p>What a good installer does:<\/p>\n<ul>\n<li>Has installed solar panels before and knows the local process.<\/li>\n<li>Listens, asks questions and helps you understand your options.<\/li>\n<li>Explains rather than pressures.<\/li>\n<li>Handles all permits and paperwork.<\/li>\n<li>Offers real guarantees, not vague promises.<\/li>\n<\/ul>\n<h2>Conclusion<\/h2>\n<p>Installing solar panels is a smart decision, especially here in Madrid, where the sun does most of the work for you. Like any important decision, though, it is worth taking your time, asking the right questions and working with certified professionals.<\/p>\n<p>If you want to get started with a <a href=\"https:\/\/keikengroup.com\/en\/news\/solar-panels-add-value-property\/\"><strong>solar panel installation in Madrid<\/strong><\/a>, contact the Keiken Engineering team. We will help you decide what is right for your home and make sure it is done properly, from the first roof inspection to final commissioning. Call us to discuss your needs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you are thinking of installing solar panels in Madrid, you are on the right track. But, like any home improvement, it is important to get it right. These are the mistakes we see most often.<\/p>\n","protected":false},"author":1,"featured_media":5608,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[74],"tags":[],"class_list":["post-10781","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy-efficiency"],"acf":[],"_links":{"self":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/comments?post=10781"}],"version-history":[{"count":1,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10781\/revisions"}],"predecessor-version":[{"id":10782,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/posts\/10781\/revisions\/10782"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/media\/5608"}],"wp:attachment":[{"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/media?parent=10781"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/categories?post=10781"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/keikengroup.com\/en\/wp-json\/wp\/v2\/tags?post=10781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}