{"id":9985,"date":"2026-08-10T15:59:22","date_gmt":"2026-08-10T13:59:22","guid":{"rendered":"https:\/\/smartfabrik.de\/wallbox-e-mobility\/"},"modified":"2026-08-23T10:11:30","modified_gmt":"2026-08-23T08:11:30","slug":"wallbox-e-mobility","status":"publish","type":"page","link":"https:\/\/smartfabrik.de\/en\/services\/services-infrastructure-network-energy\/wallbox-e-mobility\/","title":{"rendered":"Wallbox with PV Surplus Charging | smartfabrik"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"9985\" class=\"elementor elementor-9985 elementor-9917\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-sfsec0001 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"sfsec0001\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-sfcol0001\" data-id=\"sfcol0001\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-sfwid0001 elementor-widget elementor-widget-html\" data-id=\"sfwid0001\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>.elementor-widget-html{font-family:'Lato','Segoe UI',system-ui,-apple-system,Arial,sans-serif}.elementor-widget-html *{font-family:inherit}<\/style><style>\n:root{--cyan:#00CCFF;--cyan-ink:#007FA3;--ink:#0C0E10;--text:#343434;--muted:#71787E;--line:#E3E8EC;--ground:#F4F7F9;--paper:#fff;--champ:#C9A96A}\n\/*ARABISCH*\/\n\/* Noto Sans Arabic, selbst gehostet, variabel. 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.fregion{font-size:13px;color:rgba(255,255,255,.45);margin-top:4px}\n.blpfoot .fregionen{display:flex;flex-wrap:wrap;align-items:center;gap:16px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.12);font-size:13.5px}\n.blpfoot .fregionen span{color:rgba(255,255,255,.45);font-weight:800;letter-spacing:.06em;text-transform:uppercase;font-size:11.5px}\n@media(max-width:980px){.blpfoot .ftop{grid-template-columns:1fr 1fr}}\n@media(max-width:760px){.blpfoot .ftop{grid-template-columns:1fr;gap:24px}}\n.blpfoot .blogo{background-image:url(\"\/wp-content\/uploads\/sf\/5fe850997e.svg\");width:120px;height:61px;background-repeat:no-repeat;background-size:contain;background-position:left center;display:block}\n.blpfoot .fbrand p{font-size:13.5px;margin:16px 0 0;max-width:46ch;line-height:1.6}\n.blpfoot .fcol{display:flex;flex-direction:column;gap:11px}\n.blpfoot .fh{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.45)}\n.blpfoot a{color:rgba(255,255,255,.72);text-decoration:none;font-size:14px}.blpfoot a:hover{color:#40d0ff}\n.blpfoot .fbot{display:flex;justify-content:space-between;align-items:center;padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.5)}\n.blpfoot .fbot nav{display:flex;gap:18px}\n<\/style><header class=\"blpnav\" data-sf-lang=\"en\"><div class=\"nwrap\"><a href=\"\/en\/\" class=\"blogo\" aria-label=\"smartfabrik\"><\/a><input type=\"checkbox\" id=\"sfnav\" class=\"sfnav-cb\" aria-label=\"Open menu\"><label for=\"sfnav\" class=\"sfnav-burger\" aria-hidden=\"true\"><span><\/span><\/label><ul class=\"bmenu\"><li><a href=\"\/en\/services\/\">Services<\/a><\/li><li><a href=\"\/en\/knx-service\/\">KNX service<\/a><\/li><li><a href=\"\/en\/projects\/\">Projects<\/a><\/li><li><a href=\"\/en\/partners\/\">Partners<\/a><\/li><li><a href=\"\/en\/team\/\">Team<\/a><\/li><li><a href=\"\/en\/contact\/\">Contact<\/a><\/li><\/ul><div class=\"sflang\"><a href=\"\/wallbox-e-mobilitaet-vorschau\/\" lang=\"de\">DE<\/a><span class=\"on\">EN<\/span><a href=\"\/ar\/\u0634\u0648\u0627\u062d\u0646-\u0627\u0644\u0633\u064a\u0627\u0631\u0627\u062a-\u0627\u0644\u0643\u0647\u0631\u0628\u0627\u0626\u064a\u0629\/\" lang=\"ar\">AR<\/a><\/div><a class=\"bnav-cta\" href=\"\/en\/contact\/\">Talk to us <span class=\"ar\">&rarr;<\/span><\/a><\/div><\/header><div class=\"sp\" data-sf-lang=\"en\">\n<section class=\"hero\"><div class=\"hbg\"><\/div><div class=\"hveil\"><\/div><div class=\"wrap\">\n  <span class=\"eyebrow\">Infrastructure, network &amp; energy<\/span>\n  <h1>Wallbox &amp; E-Mobility \u2014 <span>charging with a plan.<\/span><\/h1>\n  <p>A wallbox is quickly bought \u2014 it only makes sense in combination with photovoltaics, the incoming supply and the smart home. We plan on a manufacturer-independent basis, elektrofabrik installs.<\/p>\n  <div class=\"hcta\"><a class=\"btn\" href=\"\/en\/contact\/\">Request a consultation <span class=\"ar\">&rarr;<\/span><\/a><a class=\"btn ghost\" href=\"\/en\/projects\/\">View projects<\/a><\/div>\n  <div class=\"hstats\"><div class=\"hstat\"><strong>PV surplus<\/strong><span>Charging from your own roof<\/span><\/div><div class=\"hstat\"><strong>Manufacturer-independent<\/strong><span>The box follows the concept<\/span><\/div><div class=\"hstat\"><strong>KNX-integrated<\/strong><span>Part of the building's logic<\/span><\/div><div class=\"hstat\"><strong>One point of contact<\/strong><span>Planning through to commissioning<\/span><\/div><\/div>\n<\/div><\/section>\n<section class=\"pos\"><div class=\"wrap\">\n  <div class=\"sec-h\"><span class=\"eyebrow\">Where we stand<\/span><h2>A wallbox is not a socket \u2014 it is energy planning.<\/h2><\/div>\n  <div class=\"pgrid\"><div class=\"pcard reveal\"><h3>The whole installation, not an accessory<\/h3><p>Charging power, the cross-section of the supply cable, circuit protection, position, registration with the network operator: a wallbox touches the entire electrical installation. We plan it as part of the electrical and energy planning for your house \u2014 including the honest question of how much charging power you actually need. The answer often turns out different from what the manufacturers' marketing promises.<\/p><\/div><div class=\"pcard reveal\"><h3>The most interesting kilowatt hour comes off the roof<\/h3><p>We plan wallboxes that align their charging power dynamically with the PV surplus: when the sun is out, the car charges \u2014 when the house is drawing a lot at that moment, the box turns itself down. That needs a suitable energy management system and the right metering at the incoming supply. With us both belong in the planning from the start, not added afterwards.<\/p><\/div><div class=\"pcard reveal\"><h3>The second car is already allowed for<\/h3><p>The incoming supply does not grow with you. Load management distributes the available power intelligently across several charging points and protects the connection from overload. We size supply cables and equipment so that the second charging point later only needs connecting \u2014 during shell construction that costs one more cable, afterwards it costs a rebuild.<\/p><\/div><\/div>\n<\/div><\/section>\n<section class=\"nvs pad\" style=\"padding-top:0\"><div class=\"wrap\">\n  <div class=\"sec-h\"><span class=\"eyebrow\">Two stages<\/span><h2>From a properly built charging point to an energy concept.<\/h2><\/div>\n  <div class=\"ngrid\">\n    <div class=\"ncard a reveal\"><span class=\"nlab\">The baseline<\/span><h3>Properly installed and registered<\/h3><p>Every wallbox needs the groundwork: the right supply cable, protection with an RCD, registration with the network operator. Everyday work for us \u2014 including documentation and instruction.<\/p><ul><li>Charging power honestly sized<\/li><li>Supply cable and RCD protection done properly<\/li><li>Registration with the network operator included<\/li><li>Installed by elektrofabrik<\/li><\/ul><\/div>\n    <div class=\"ncard b reveal\"><span class=\"nlab\">Our strength<\/span><h3>Charging within the whole system<\/h3><p>It gets interesting in the interplay: the box charges on solar power by preference, shares the incoming supply with the heat pump and the battery, and reports in on your KNX visualisation.<\/p><ul><li>Dynamic charging on PV surplus<\/li><li>Load management for the second car<\/li><li>Priority between heat pump, battery and car<\/li><li>Charging status in the KNX visualisation<\/li><\/ul><\/div>\n  <\/div>\n<\/div><\/section>\n<section class=\"gew\"><div class=\"wrap\">\n    <div class=\"sec-h\"><span class=\"eyebrow\">Wallbox &amp; E-Mobility<\/span><h2>A wallbox is not a device, it is a load concept.<\/h2><p>The most common mistake is not the wrong wallbox but everything that comes before it: a cable that does not reach a charging flap on the other side of the vehicle, an incoming supply with no headroom, or a PV system feeding into the grid while the car beside it draws from it. We plan the charging point from the meter cabinet through to where the vehicle actually stands, and tie it into the same control system that holds the heat pump, the battery and the shading. Installation, groundworks and commissioning are carried out by our sister company elektrofabrik.<\/p><\/div>\n    <div class=\"gwgrid\"><div class=\"gwcell reveal\"><span class=\"gwnum\">01<\/span><h3>Position and where the vehicle stands<\/h3><p>Before the first cable goes in, we settle where the vehicle actually stands: charging flap left or right, parked nose-in or reversed in, the cable length needed, room to manoeuvre, a second vehicle. Garage, carport, open parking space and an external wall each place different demands on the degree of protection, the mounting height and the cable routing.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">02<\/span><h3>Cable route and voltage drop<\/h3><p>On large plots there can quickly be several dozen metres between the meter cabinet and the parking space. We calculate the voltage drop over the real route length rather than as the crow flies, and size the cross-section, the installation method, the burial depth and the transitions between main house, yard and outbuilding accordingly.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">03<\/span><h3>Circuit protection and residual current protection<\/h3><p>Charging points produce a different fault pattern than a socket does. We establish whether the station brings DC residual current detection with it or whether that has to be added upstream, and we settle the cable protection, the selectivity and the space in the distribution board \u2014 at Villa Riyadh right through to a control cabinet prefabricated and shipped from Germany.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">04<\/span><h3>Incoming supply and load management<\/h3><p>The honest question is not how fast the wallbox can charge, but what the incoming supply still has left in the evening. Static means: fixed limit. Dynamic means: a set of current transformers measures at the connection point and continuously releases whatever is spare \u2014 including defined behaviour if communication fails.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">05<\/span><h3>Several charging points<\/h3><p>Two vehicles, visitors, later a third: we plan charging points as a group, with prioritisation, a fair split of the available power and defined behaviour when both plug in at once. Linked over master-slave or a backend \u2014 plus spare capacity in conduit and distribution board for later expansion.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">06<\/span><h3>PV surplus charging<\/h3><p>Surplus charging is a control task, not a checkbox. We define the minimum charging current, the hysteresis and the waiting times so that the station does not start up every minute as clouds pass, and we settle the priority between vehicle, home battery and hot water. How generation really fluctuates we know from PV systems such as the SIDOL Lofts in Cologne.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">07<\/span><h3>Phase switching and charging windows<\/h3><p>Without switching between single-phase and three-phase charging, the system stands still on a small surplus instead of charging slowly. Then there are the charging windows: a guaranteed minimum range by departure time, a night window for cheaper tariffs, priority for the vehicle that has to leave first in the morning.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">08<\/span><h3>Release and access control<\/h3><p>Who may charge is not decided by the socket. Release by RFID card, app or a switch in the house, tied to the access control concept \u2014 at Detlef Steves' place in Moers the garage door, the door station and voice operation sit in one logic anyway. Guest charging stays limited in time and in power.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">09<\/span><h3>Billing and logging<\/h3><p>As soon as company cars are involved, charging sessions have to be traceable: meter readings per charge, allocation to a user or a vehicle, exportable records for reimbursement by the employer. Which metering and which backend have to provide that we settle before the equipment is chosen \u2014 retrofitting here usually means replacing.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">10<\/span><h3>Energy management and visualisation<\/h3><p>The charging point belongs in the same interface as everything else: current charging power, energy charged, PV share, release status \u2014 visible on the control panel in the house rather than in a fourth manufacturer app. We plan the data points that are really needed for it, and their route into the visualisation.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">11<\/span><h3>Interplay with the heat pump<\/h3><p>The heat pump and the wallbox are the two largest single loads in the house and often want power at the same time. We settle priorities, blocking and release windows and the behaviour when grid power is reduced, so that in case of doubt the car charges more slowly and the heating keeps running.<\/p><\/div><div class=\"gwcell reveal\"><span class=\"gwnum\">12<\/span><h3>Preparation during shell construction<\/h3><p>The cheapest charging concept comes about during shell construction: conduit of sufficient nominal diameter to the parking space and the carport, a draw wire, generous bends, a spare conduit for the second charging point and a clean penetration through the floor slab or the basement wall. Afterwards every one of these points costs breaking open \u2014 the groundworks are carried out by elektrofabrik.<\/p><\/div><\/div>\n    <p class=\"gwclose\">A charging point is only fully planned once it also works in the evening, when the heat pump, the kitchen and a second vehicle all want power at the same time.<\/p>\n  <\/div><\/section>\n\n<section class=\"del\"><div class=\"wrap\">\n    <div class=\"sec-h\"><span class=\"eyebrow\">Scope of work<\/span><h2>What belongs to the charging infrastructure<\/h2><p>Six building blocks we settle before a box is ordered.<\/p><\/div>\n    <div class=\"dgrid\"><div class=\"dcard reveal\"><span class=\"dnum\">01<\/span><h3>Position &amp; supply cable<\/h3><p>Garage, carport or parking space \u2014 with a cross-section and a cable route that carries the second vehicle too.<\/p><\/div><div class=\"dcard reveal\"><span class=\"dnum\">02<\/span><h3>Choice of box<\/h3><p>Manufacturer-independent, to suit your energy concept: capable of surplus charging, capable of load management, able to be integrated into the smart home.<\/p><\/div><div class=\"dcard reveal\"><span class=\"dnum\">03<\/span><h3>Energy management<\/h3><p>Metering at the incoming supply, and the control that lets the PV system, the battery and the wallbox work together.<\/p><\/div><div class=\"dcard reveal\"><span class=\"dnum\">04<\/span><h3>Load management<\/h3><p>The available power distributed intelligently across several charging points \u2014 the incoming supply stays protected.<\/p><\/div><div class=\"dcard reveal\"><span class=\"dnum\">05<\/span><h3>Coordination with the network operator<\/h3><p>We handle the registration and the paperwork in the course of the planning \u2014 routine rather than bureaucracy.<\/p><\/div><div class=\"dcard reveal\"><span class=\"dnum\">06<\/span><h3>KNX integration<\/h3><p>Charging status, release by app or RFID, and an evaluation of the charging sessions in your visualisation.<\/p><\/div><\/div>\n  <\/div><\/section>\n<section class=\"proc\"><div class=\"wrap\">\n  <div class=\"sec-h\"><span class=\"eyebrow\">How it runs<\/span><h2>From the question to the charging point<\/h2><\/div>\n  <div class=\"tl\"><div class=\"tstep reveal\"><span class=\"tnum\">1<\/span><div class=\"tbody\"><h3>Requirement &amp; concept<\/h3><p>We go through the driving profile, the vehicles and your expansion plans \u2014 and answer honestly how much charging power you actually need. Out of that comes the concept for today and for the second car.<\/p><\/div><\/div><div class=\"tstep reveal\"><span class=\"tnum\">2<\/span><div class=\"tbody\"><h3>Planning<\/h3><p>Position, supply cable, circuit protection, energy management and how PV and battery are tied in are all settled before any components are ordered \u2014 coordinated with your electrical planning.<\/p><\/div><\/div><div class=\"tstep reveal\"><span class=\"tnum\">3<\/span><div class=\"tbody\"><h3>Registration<\/h3><p>We take on the coordination with the network operator: preparing the paperwork, registering, and obtaining consent where higher charging powers need it. You need not deal with any of it.<\/p><\/div><\/div><div class=\"tstep reveal\"><span class=\"tnum\">4<\/span><div class=\"tbody\"><h3>Installation &amp; commissioning<\/h3><p>Our sister company elektrofabrik installs as a specialist electrical contractor, we commission, document and take you through it \u2014 one point of contact from beginning to end.<\/p><\/div><\/div><\/div>\n<\/div><\/section>\n<section class=\"proof\"><div class=\"wrap\">\n  <span class=\"eyebrow\">Bewiesen<\/span>\n  <h2>Proven on site<\/h2>\n  <div class=\"prgrid\">\n    <div>\n      <div class=\"pritem reveal\"><span class=\"prnum\">01<\/span><div><h3>SIDOL Lofts, Cologne<\/h3><p>Around 645 PV modules in 23 strings as a tenant electricity scheme \u2014 energy engineering at scale, installed by elektrofabrik.<\/p><\/div><\/div><div class=\"pritem reveal\"><span class=\"prnum\">02<\/span><div><h3>Period building, D\u00fcsseldorf-Oberkassel<\/h3><p>A complete electrical installation in an existing building, from shading through to the smart office \u2014 the same discipline that produces properly built charging infrastructure.<\/p><\/div><\/div><div class=\"pritem reveal\"><span class=\"prnum\">03<\/span><div><h3>100+ projects, 3 countries<\/h3><p>From a detached house in North Rhine-Westphalia to a villa in Riyadh: planning depth that works on site \u2014 at your parking space too.<\/p><\/div><\/div>\n      <a class=\"prref\" href=\"\/en\/projects\/\">View all projects <span class=\"ar\">&rarr;<\/span><\/a>\n    <\/div>\n    <div class=\"prmedia reveal\">\n      <figure class=\"tall\" style=\"background-image:url(\/wp-content\/uploads\/sf\/ab01aca71f.jpg)\"><\/figure>\n      <figure style=\"background-image:url(\/wp-content\/uploads\/sf\/f7ca0a33f8.jpg)\"><\/figure>\n      <figure style=\"background-image:url(\/wp-content\/uploads\/sf\/2ddb157f4e.jpg)\"><\/figure>\n    <\/div>\n  <\/div>\n<\/div><\/section>\n<section class=\"orte onpaper\"><div class=\"wrap\">\n  <div class=\"sec-h\"><span class=\"eyebrow\">Where we work<\/span><h2>Wallbox &amp; E-Mobilit\u00e4t in Cologne, D\u00fcsseldorf &amp; North Rhine-Westphalia.<\/h2>\n  <p>smartfabrik is a smart home planning practice based in D\u00fcsseldorf (Reisholzer Werftstr. 31A). We plan for private clients and companies in Cologne, D\u00fcsseldorf and across North Rhine-Westphalia \u2014 and, where wanted, nationwide and internationally. A selection of the places we have already planned and delivered in:<\/p><\/div>\n  <div class=\"ochips\"><a href=\"\/en\/smart-home-cologne\/\">K\u00f6ln-Marienburg<\/a><a href=\"\/en\/smart-home-cologne\/\">K\u00f6ln-Rodenkirchen<\/a><a href=\"\/en\/smart-home-cologne\/\">K\u00f6ln-S\u00fcrth<\/a><a href=\"\/en\/smart-home-cologne\/\">K\u00f6ln-Lindenthal<\/a><a href=\"\/en\/smart-home-cologne\/\">K\u00f6ln-Braunsfeld<\/a><a href=\"\/en\/smart-home-duesseldorf\/\">D\u00fcsseldorf-Oberkassel<\/a><a href=\"\/en\/projects\/\">Neuss<\/a><a href=\"\/en\/projects\/\">Kaarst<\/a><a href=\"\/en\/projects\/\">Moers<\/a><a href=\"\/en\/projects\/\">Essen<\/a><a href=\"\/en\/projects\/\">Solingen<\/a><a href=\"\/en\/smart-home-cologne\/\">Br\u00fchl<\/a><a href=\"\/en\/projects\/\">Aachen<\/a><a href=\"\/en\/projects\/\">Berlin<\/a><a href=\"\/en\/projects\/\">Hamburg<\/a><a href=\"\/en\/projects\/\">Mainz<\/a><a href=\"\/en\/projects\/\">Mallorca<\/a><a href=\"\/en\/projects\/\">Riad<\/a><\/div>\n<\/div><\/section>\n\n<section class=\"faq\"><div class=\"wrap\"><div class=\"sec-h\"><span class=\"eyebrow\">FAQ<\/span><h2>Frequently asked questions.<\/h2><\/div><details><summary>Can the wallbox charge on PV surplus?<\/summary><p>Yes, with the right equipment: an energy management system measures at the incoming supply how much solar power is left over and adjusts the charging power dynamically. What matters is a wallbox capable of surplus charging and suitable metering \u2013 not every box can do it. We plan the components so that the PV system, the battery and the vehicle work together properly.<\/p><\/details><details><summary>Is 11 kW enough or do I need 22 kW?<\/summary><p>For most households 11 kW is the sensible choice: overnight practically any battery is full, and registration with the network operator is simpler than the consent higher powers require. 22 kW is only worth it in special cases \u2013 for instance if the vehicle supports three-phase AC charging at full power at all. We work that through honestly with you.<\/p><\/details><details><summary>Do I have to register the wallbox with the network operator?<\/summary><p>Yes, private charging equipment is registered with the network operator; higher charging powers additionally require its consent. It sounds bureaucratic but it is routine \u2013 we prepare the paperwork and handle the coordination in the course of the planning. You need not deal with any of it, and the installation is properly registered from the outset.<\/p><\/details><details><summary>Who installs the wallbox?<\/summary><p>The installation belongs in the hands of a specialist electrical contractor \u2013 the supply cable, protection with an RCD and commissioning are not matters for DIY. With us our sister company elektrofabrik does that, the same firm that carries out our smart home projects. Planning and installation come from one source, including documentation and instruction.<\/p><\/details><details><summary>Is the preparation worth it if I do not have an electric car yet?<\/summary><p>Absolutely \u2013 and precisely now. In a new build the preparation costs little: a conduit to the garage or the parking space, a supply cable of sufficient cross-section, spare space in the distribution board. Afterwards the same thing means excavation or chasing. Our recommendation on every project: prepare the charging infrastructure, even if the vehicle is five years away.<\/p><\/details><\/div><\/section>\n<style>.sp .welt{background:var(--paper);border-top:1px solid var(--line);padding:30px 0}.sp .welt .wrap{display:flex;align-items:baseline;flex-wrap:wrap;gap:10px 16px}.sp .welt span{font-weight:800;font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}.sp .welt a{font-weight:800;font-size:16px;color:var(--ink);text-decoration:none;  border-bottom:1px solid var(--cyan);padding-bottom:2px}.sp .welt a:hover{border-bottom-color:var(--ink)}\n.sflang{display:flex;align-items:center;gap:9px;flex:none;font-size:12px;font-weight:800;letter-spacing:.09em;font-family:'Lato',system-ui,sans-serif}\n.sflang a{color:#8A949B;text-decoration:none}\n.sflang a:hover{color:#007FA3}\n.sflang .on{color:currentColor;opacity:.95}\n@media(max-width:560px){.sflang{gap:6px;font-size:11px;letter-spacing:.06em;margin-inline-start:0;padding-inline-start:10px}}\n<\/style><section class=\"welt\"><div class=\"wrap\"><span>Part of the living theme<\/span><a href=\"\/en\/energy-efficiency\/\">Energy & efficiency <span class=\"ar\">&rarr;<\/span><\/a><\/div><\/section>\n<section class=\"cta\"><div class=\"wrap\"><span class=\"eyebrow\">The first step<\/span><h2>Prepare for charging before the car arrives.<\/h2><p>In the first conversation we settle position, power and the PV connection \u2014 manufacturer-independent and with no sales pressure.<\/p><a class=\"btn\" href=\"\/en\/contact\/\">Request a consultation <span class=\"ar\">&rarr;<\/span><\/a><\/div><\/section>\n<\/div><footer class=\"blpfoot\" data-sf-lang=\"en\"><div class=\"wrap\"><div class=\"ftop\"><div class=\"fbrand\"><a href=\"\/en\/\" class=\"blogo\" aria-label=\"smartfabrik\"><\/a><p>Manufacturer-independent smart home &amp; KNX planning. Carried out by elektrofabrik. Cologne \u00b7 D\u00fcsseldorf \u00b7 NRW.<\/p><\/div><nav class=\"fcol\"><span class=\"fh\">Services<\/span><a href=\"\/en\/services\/\">All services<\/a><a href=\"\/en\/for-private-clients\/\">For private clients<\/a><a href=\"\/en\/for-developers\/\">For developers &amp; commercial<\/a><a href=\"\/en\/basalte\/\">Basalte<\/a><a href=\"\/en\/network-security-systems\/\">Network &amp; security<\/a><a href=\"\/en\/knx-service\/\">KNX service<\/a><\/nav><nav class=\"fcol\"><span class=\"fh\">Company<\/span><a href=\"\/en\/projects\/\">Projects<\/a><a href=\"\/en\/partners\/\">Partners<\/a><a href=\"\/en\/team\/\">Team<\/a><a href=\"\/en\/smartnews\/\">smartnews<\/a><\/nav><nav class=\"fcol\"><span class=\"fh\">Contact<\/span><a href=\"tel:+4921183866870\">+49 211 838 66 870<\/a><a href=\"mailto:info@smartfabrik.de\">info@smartfabrik.de<\/a><a href=\"\/en\/contact\/\">Contact form<\/a><span class=\"fregion\">Cologne \u00b7 D\u00fcsseldorf \u00b7 North Rhine-Westphalia<\/span><\/nav><\/div><div class=\"fregionen\"><span>On site:<\/span><a href=\"\/en\/smart-home-cologne\/\">Smart Home Cologne<\/a><a href=\"\/en\/smart-home-duesseldorf\/\">Smart Home D\u00fcsseldorf<\/a><\/div><div class=\"fbot\"><span>\u00a9 smartfabrik \u00b7 Cologne \u00b7 D\u00fcsseldorf \u00b7 NRW<\/span><nav><a href=\"\/en\/imprint\/\">Legal notice<\/a><a href=\"\/en\/privacy-policy\/\">Privacy<\/a><\/nav><\/div><\/div><\/footer><script>(function(){var io=new IntersectionObserver(function(es){es.forEach(function(e){if(e.isIntersecting){e.target.classList.add('in');io.unobserve(e.target)}})},{threshold:.08});document.querySelectorAll('.sp .reveal').forEach(function(el){io.observe(el)});})();<\/script>\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Service\",\"name\":\"Wallbox with PV Surplus Charging\",\"provider\":{\"@type\":\"ProfessionalService\",\"name\":\"smartfabrik GmbH\",\"telephone\":\"+49 211 838 66 870\",\"email\":\"info@smartfabrik.de\",\"address\":{\"@type\":\"PostalAddress\",\"streetAddress\":\"Reisholzer Werftstr. 31A\",\"postalCode\":\"40589\",\"addressLocality\":\"D\u00fcsseldorf\",\"addressCountry\":\"DE\"},\"areaServed\":[\"K\u00f6ln\",\"D\u00fcsseldorf\",\"Neuss\",\"Kaarst\",\"Moers\",\"Essen\",\"Solingen\",\"Br\u00fchl\",\"Aachen\",\"Nordrhein-Westfalen\",\"Deutschland\"]},\"description\":\"Wallbox with PV surplus charging inside your energy concept. 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Beratung anfragen &rarr;Referenzen ansehen PV-\u00dcberschussLaden vom eigenen DachHerstellerunabh\u00e4ngigBox nach KonzeptKNX-integriertTeil der Geb\u00e4udelogikEin&hellip; <a class=\"more-link\" href=\"https:\/\/smartfabrik.de\/en\/services\/services-infrastructure-network-energy\/wallbox-e-mobility\/\">Continue reading <span class=\"screen-reader-text\">Wallbox with PV Surplus Charging | smartfabrik<\/span><\/a><\/p>\n","protected":false},"author":0,"featured_media":0,"parent":10215,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_canvas","meta":{"footnotes":""},"class_list":["post-9985","page","type-page","status-publish","hentry","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Wallbox with PV Surplus Charging | smartfabrik<\/title>\n<meta name=\"description\" content=\"Wallbox with PV surplus charging inside your energy concept. 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