{"id":2822,"date":"2026-10-05T14:16:37","date_gmt":"2026-10-05T12:16:37","guid":{"rendered":"https:\/\/certipower.be\/?post_type=kennisbank&#038;p=2822"},"modified":"2026-10-07T21:14:13","modified_gmt":"2026-10-07T19:14:13","slug":"smappee-solar-charging","status":"publish","type":"kennisbank","link":"https:\/\/certipower.be\/en\/kennisbank\/smappee-solar-charging\/","title":{"rendered":"Solar charging with Smappee: how to set up Solar charging"},"content":{"rendered":"<div class=\"cpk\">\n<p class=\"cpk-lead\">With solar panels on the roof, every kWh you charge into your own car is cheaper than a kWh you sell back to the grid for a fraction of the price. Your Smappee charging station can automatically charge on your surplus solar energy. Here is how to set it up, and how to avoid your car still being half empty in the evening.<\/p>\n<h2>What smart solar charging does<\/h2>\n<p>In <strong>Solar charging<\/strong> mode, your car only charges with the electricity your home does not use itself and that would otherwise go to the grid. When that surplus drops, the charging power drops with it. When there is too little, charging pauses.<\/p>\n<div class=\"cpk-callout\">\n<p>What you used to export for very little, you now turn into kilometres. That way you get more return from your solar panels.<\/p>\n<\/div>\n<h2>What you need<\/h2>\n<ul class=\"cpk-checks\">\n<li>A Smappee charging station with smart charging: EV Wall, EV One, EV Base or EV Dual. The Lite versions do not support this.<\/li>\n<li>A measurement of your grid connection. The Home versions have this built in; for other versions it runs through a Smappee Infinity or a P1 module on your digital meter.<\/li>\n<li>The Smappee app, linked to your installation<\/li>\n<\/ul>\n<p>Not sure which version you have? The type is on the rating plate of the charging station and in the app under your charging station.<\/p>\n<h2>How to switch on solar charging<\/h2>\n<ol class=\"cpk-steps\">\n<li><strong>Open your charging station settings<\/strong>In the Smappee app or the Smappee dashboard, go to the configuration of your charging station.<\/li>\n<li><strong>Choose Solar charging as the charging mode<\/strong>From now on your car only charges on surplus solar energy.<\/li>\n<li><strong>Set the grid support<\/strong>With the Grid support setting you decide how much power the charging station may draw from the grid so it can still charge. More explanation in the table below.<\/li>\n<\/ol>\n<h2>Why your car sometimes won\u2019t start, even when the sun is shining<\/h2>\n<p>Technically, an electric car charges at a minimum of 6 amps per phase. That is a fixed limit from the charging standard, not a setting of the charging station. In practice this means:<\/p>\n<div class=\"cpk-pillars\">\n<div class=\"cpk-pillar is-key\"><span class=\"cpk-lbl\">Single-phase<\/span><strong>1.4 kW<\/strong><span class=\"cpk-pillar-txt\">minimum surplus to start<\/span><\/div>\n<div class=\"cpk-pillar\"><span class=\"cpk-lbl\">Three-phase<\/span><strong>4.2 kW<\/strong><span class=\"cpk-pillar-txt\">minimum surplus to start<\/span><\/div>\n<\/div>\n<p>If your car charges on three phases, there must be more than 4 kW of surplus before charging begins. On a cloudy day or with a smaller installation, that is rarely the case. With suitable charging stations on a three-phase connection (3&#215;400 V), the system automatically switches between single-phase and three-phase charging, so you can also charge at less sunny moments.<\/p>\n<h2>Grid support: how much grid power is allowed?<\/h2>\n<div class=\"cpk-table-wrap\">\n<table>\n<thead>\n<tr>\n<th>Grid support<\/th>\n<th>Minimum solar surplus<\/th>\n<th>Start on single-phase<\/th>\n<th>Start on three-phase<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0 A<\/td>\n<td>6 A (100% solar)<\/td>\n<td>1.4 kW<\/td>\n<td>4.2 kW<\/td>\n<\/tr>\n<tr>\n<td>2 A<\/td>\n<td>4 A<\/td>\n<td>\u00b1 0.9 kW<\/td>\n<td>\u00b1 2.8 kW<\/td>\n<\/tr>\n<tr>\n<td>4 A<\/td>\n<td>2 A<\/td>\n<td>\u00b1 0.5 kW<\/td>\n<td>\u00b1 1.4 kW<\/td>\n<\/tr>\n<tr>\n<td>6 A<\/td>\n<td>0 A (100% grid)<\/td>\n<td>immediately<\/td>\n<td>immediately<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The higher the grid support, the more often your car charges, but the more power you draw from the grid. For most homes, 2 or 4 A is a good balance.<\/p>\n<div class=\"cpk-cta-mini\">\n<div class=\"cpk-cta-mini-txt\">Not sure which setting suits your solar panels and driving pattern? We set it up with you.<\/div>\n<div class=\"cpk-cta-mini-act\"><a class=\"cpk-btn cpk-btn-primary cpk-btn-arrow\" href=\"https:\/\/certipower.be\/en\/schedule-a-call\/\">Schedule a call<\/a><\/div>\n<\/div>\n<h2>Does your car need to be full in the morning?<\/h2>\n<p>Charging on solar alone is ideal if your car is at home during the day. If you leave every morning, a combination works better: the <strong>Schedules<\/strong> mode lets you charge at fixed times, for example at night or during the cheapest hours on a dynamic contract, and tops up during the day with surplus solar. Also set a maximum grid capacity in the app, so charging never creates a new peak in your capacity tariff. More on that in our article on <a href=\"https:\/\/certipower.be\/en\/kennisbank\/capacity-tariff-and-smart-charging\/\">the capacity tariff and smart charging<\/a>.<\/p>\n<p>Do you also have a home battery? Then a few extra settings are needed to keep the battery and the charging station from working against each other. Read more in <a href=\"https:\/\/certipower.be\/en\/kennisbank\/charging-ev-with-home-battery\/\">charging your car with a home battery<\/a>.<\/p>\n<div class=\"cpk-cta\">\n<div class=\"cpk-eyebrow\">Smart charging, set up right<\/div>\n<p class=\"cpk-cta-title\">Get more out of your solar panels<\/p>\n<p>We review your installation and set up your charging station for your consumption and driving pattern.<\/p>\n<ul class=\"cpk-checks\">\n<li>Check of your metering and charging station<\/li>\n<li>Setup of charging mode and grid support<\/li>\n<li>Advice on capacity tariff and dynamic contract<\/li>\n<\/ul>\n<div class=\"cpk-cta-actions\"><a class=\"cpk-btn cpk-btn-primary cpk-btn-arrow\" href=\"https:\/\/certipower.be\/en\/schedule-a-call\/\">Schedule a call<\/a><a class=\"cpk-btn cpk-btn-ghost cpk-btn-tel\" href=\"tel:+3251153015\">+32 51 15 30 15<\/a><\/div>\n<div class=\"cpk-cta-alt\">Already have a Certipower charging station? <a href=\"mailto:service@certipower.be\">service@certipower.be<\/a><\/div>\n<div class=\"cpk-proof\">\n<div><strong>6,000+<\/strong>charge points<\/div>\n<div><strong>98%<\/strong>customer satisfaction<\/div>\n<div><strong>7\/7<\/strong>support<\/div>\n<\/div>\n<\/div>\n<p class=\"cpk-note\">Based on Smappee\u2019s documentation at the time of publication. Labels in the app may change with updates.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Charge your car on your own solar surplus. How to set up Solar charging and grid support, and why your car sometimes won\u2019t start.<\/p>\n","protected":false},"template":"","meta":{"_acf_changed":false,"slim_seo":{"title":"Solar charging with Smappee: how to set it up","description":"Charge your electric car on the surplus from your solar panels. 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