{"product_id":"my-pv-ac-elwa-2-heizstab-3-5-kw-photovoltaik-warmwasser","title":"MY-PV AC ELWA 2 Heating Element 3.5 kW Photovoltaic Water Heater","description":"\u003cstyle\u003e\n@import url('https:\/\/fonts.googleapis.com\/css2?family=DM+Sans:wght@400;500;600;700\u0026display=swap');\n.sv-product{font-family:'DM Sans',sans-serif;color:#1a1a1a;max-width:900px;margin:0 auto;line-height:1.6}\n.sv-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:28px}\n@media(max-width:600px){.sv-stats{grid-template-columns:repeat(2,1fr)}}\n.sv-stat{background:#0c0c0c;border-radius:12px;padding:20px 16px;text-align:center}\n.sv-stat-val{font-size:28px;font-weight:700;color:#fff;line-height:1.1}\n.sv-stat-val span{font-size:16px;font-weight:400;color:rgba(255,255,255,0.5)}\n.sv-stat-label{font-size:12px;color:rgba(255,255,255,0.4);margin-top:6px}\n.sv-section{margin-bottom:28px}\n.sv-section-title{font-size:18px;font-weight:700;color:#0c0c0c;margin:0 0 16px;padding-left:14px;border-left:3px solid #dc2626}\n.sv-features{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}\n@media(max-width:600px){.sv-features{grid-template-columns:1fr}}\n.sv-feature{background:#f8f8f8;border-radius:12px;padding:20px;display:flex;align-items:flex-start;gap:14px}\n.sv-feature-icon{min-width:40px;height:40px;border-radius:10px;background:rgba(220,38,38,0.08);display:flex;align-items:center;justify-content:center;font-size:18px;color:#dc2626}\n.sv-feature h4{font-size:14px;font-weight:600;color:#1a1a1a;margin:0 0 4px}\n.sv-feature p{font-size:13px;color:#666;margin:0;line-height:1.5}\n.sv-table-wrap{border:1px solid #e5e5e5;border-radius:12px;overflow:hidden}\n.sv-table{width:100%;border-collapse:collapse;font-size:14px}\n.sv-table thead th{background:#0c0c0c;color:#fff;font-weight:600;padding:14px 18px;text-align:left;font-size:13px}\n.sv-table tbody tr{border-bottom:1px solid #f0f0f0}\n.sv-table tbody tr:last-child{border-bottom:none}\n.sv-table tbody tr:nth-child(even){background:#fafafa}\n.sv-table td{padding:12px 18px;color:#333}\n.sv-table td:first-child{font-weight:500;color:#1a1a1a;width:45%}\n.sv-highlight{color:#dc2626;font-weight:600}\n.sv-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}\n.sv-badge{display:inline-flex;align-items:center;gap:6px;background:#f0f0f0;border-radius:8px;padding:8px 14px;font-size:12px;font-weight:500;color:#333}\n.sv-badge-dot{width:6px;height:6px;border-radius:50%;background:#22c55e}\n.sv-seo{font-size:14px;color:#555;line-height:1.8;margin-top:32px;padding-top:24px;border-top:1px solid #eee}\n.sv-faq{margin-top:0;padding-top:0;border-top:none}\n.sv-faq-item{background:#f8f8f8;border-radius:12px;padding:20px;margin-bottom:12px}\n.sv-faq-item summary{font-size:14px;font-weight:600;color:#1a1a1a;cursor:pointer;list-style:none;display:flex;align-items:center;gap:10px}\n.sv-faq-item summary::-webkit-details-marker{display:none}\n.sv-faq-item summary::before{content:'';display:inline-block;width:8px;height:8px;border-right:2px solid #dc2626;border-bottom:2px solid #dc2626;transform:rotate(-45deg);transition:transform 0.2s;flex-shrink:0}\n.sv-faq-item[open] summary::before{transform:rotate(45deg)}\n.sv-faq-item p{font-size:13px;color:#555;margin:12px 0 0 18px;line-height:1.7}\n\u003c\/style\u003e\n\u003cdiv class=\"sv-product\"\u003e\n\n\u003cdiv class=\"sv-stats\"\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e3.5 \u003cspan\u003ekW\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eHeating output\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e0 – 100 \u003cspan\u003e%\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eSteplessly adjustable\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003e230 \u003cspan\u003eV\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003e1-phase\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat\"\u003e\n\n\u003cdiv class=\"sv-stat-val\"\u003eAT \u003cspan\u003e✓\u003c\/span\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-stat-label\"\u003eMade in Austria\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eAdvantages at a glance\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-features\"\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🔥\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003ePV surplus into hot water\u003c\/h4\u003e\n\n\u003cp\u003eConverts surplus photovoltaic power directly into hot water – instead of feeding it into the grid for a few cents, your own electricity is used for domestic hot water. One of the most economical ways to increase self-consumption.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e📈\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eLinear stepless control\u003c\/h4\u003e\n\n\u003cp\u003eControls the heating output seamlessly from 0 to 3,500 W in thousands of steps – adapts to the current PV surplus with pinpoint accuracy. This way, grid feed-in is regulated to zero, and every surplus watt-hour ends up in the storage tank.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🔗\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eUniversally compatible\u003c\/h4\u003e\n\n\u003cp\u003eWorks with any inverter and any smart meter. Interfaces: RJ45 Ethernet (Modbus TCP), RS485 (Modbus RTU), PWM input and galvanically isolated switching output. Plug-and-play or fully integrated into the smart home.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e⚙️\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eSecond heating element controllable\u003c\/h4\u003e\n\n\u003cp\u003eAn external 3 kW heating element can also be controlled via the isolated switching output – total output up to 6.5 kW. Ideal for larger storage tanks or combined domestic\/heating water systems.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🏭\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eMade in Austria\u003c\/h4\u003e\n\n\u003cp\u003eDeveloped and manufactured by my-PV in Neuzeug, Upper Austria. Market leader for photovoltaic-electric water heating with over 100,000 devices sold worldwide. Local support and long-term spare parts supply.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-feature\"\u003e\n\n\u003cdiv class=\"sv-feature-icon\"\u003e🔧\u003c\/div\u003e\n\n\u003cdiv\u003e\n\n\u003ch4\u003eEasy installation\u003c\/h4\u003e\n\n\u003cp\u003eStandard G 1½\" screw-in thread – fits into practically any hot water and buffer storage tank. Direct connection to 230 V, no external control box necessary. Commissioning via web interface in just a few minutes.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eTechnical Data\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-table-wrap\"\u003e\u003ctable class=\"sv-table\"\u003e\n\n\u003cthead\u003e\u003ctr\u003e\n\n\u003cth\u003eParameter\u003c\/th\u003e\n\n\u003cth\u003eValue\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\u003c\/thead\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHeating output\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003e0 – 3,500 W stepless\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eExtended output (with ext. heating element)\u003c\/td\u003e\n\n\u003ctd\u003eup to 6,500 W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eMains connection\u003c\/td\u003e\n\n\u003ctd\u003e230 V, 1-phase, 45 – 65 Hz\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eConnection\u003c\/td\u003e\n\n\u003ctd\u003e3-pole terminal, 2.5 mm²\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eScrew-in thread\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003eG 1½\" (Standard)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eHeating element\u003c\/td\u003e\n\n\u003ctd\u003eStainless steel, approx. 360 mm immersion depth\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\n\u003ctd\u003eRJ45 Ethernet, Modbus TCP\/RTU, RS485, PWM-in\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSwitching output\u003c\/td\u003e\n\n\u003ctd\u003eGalvanically isolated, for ext. 3 kW heating element\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWeb interface\u003c\/td\u003e\n\n\u003ctd\u003eBrowser-based, no additional gateway required\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eProtection class\u003c\/td\u003e\n\n\u003ctd\u003eIP X4\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eAmbient temperature\u003c\/td\u003e\n\n\u003ctd\u003e0 – 40 °C\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eWeight\u003c\/td\u003e\n\n\u003ctd\u003eapprox. 3.5 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\n\u003ctd class=\"sv-highlight\"\u003eAustria\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-section\"\u003e\n\n\u003ch3 class=\"sv-section-title\"\u003eCertificates \u0026amp; Conformity\u003c\/h3\u003e\n\n\u003cdiv class=\"sv-badges\"\u003e\n\n\u003cdiv class=\"sv-badge\"\u003e\n\n\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eCE\u003c\/div\u003e\n\n\u003cdiv class=\"sv-badge\"\u003e\n\n\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eEN 60335\u003c\/div\u003e\n\n\u003cdiv class=\"sv-badge\"\u003e\n\n\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eEN 61000 EMC\u003c\/div\u003e\n\n\u003cdiv class=\"sv-badge\"\u003e\n\n\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eRoHS\u003c\/div\u003e\n\n\u003cdiv class=\"sv-badge\"\u003e\n\n\u003cspan class=\"sv-badge-dot\"\u003e\u003c\/span\u003eMade in Austria\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"sv-seo sv-faq\"\u003e\n\n\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\n\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eHow does the AC ELWA 2 work?\u003c\/summary\u003e\u003cp\u003eThe AC ELWA 2 measures the current flow at the house connection via a Smart Meter. As soon as the PV system produces more electricity than the household currently consumes, the device continuously regulates the built-in 3.5 kW heating element so that grid feed-in is kept exactly at zero. The surplus PV electricity is thus directly converted into hot water – more economically than any grid feed-in at cent tariffs.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhich inverters is the ELWA 2 compatible with?\u003c\/summary\u003e\u003cp\u003eWith practically all inverters and smart meters available on the market. The connection is made either directly via Modbus TCP (Ethernet), Modbus RTU (RS485) or via the standalone Smart Meter \"Power Meter\" from my-PV. Specific compatibility lists and connection examples can be found in the official manual.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eHow much hot water does a typical household cover with it?\u003c\/summary\u003e\u003cp\u003eWith a 5 kWp PV system and a 300-liter storage tank, the ELWA 2 typically covers 60 – 80 % of the annual hot water demand in Austria with solar energy. In summer practically 100 %, in winter supportive. With electricity prices of 25 cents\/kWh, annual savings of approx. 250 – 400 euros can be achieved compared to grid purchase.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eIs the ELWA 2 also worthwhile for small PV systems?\u003c\/summary\u003e\u003cp\u003eYes, especially for smaller systems (2 – 5 kWp), the economic efficiency is particularly high. Since the ELWA 2 regulates continuously from the watt range, every smallest surplus is utilized – even in cloudy weather or weak winter sun.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eDo I need an additional storage tank or can I use an existing one?\u003c\/summary\u003e\u003cp\u003eThe ELWA 2 is screwed into an existing hot water or buffer storage tank – standard G 1½\" sleeve. No new storage tank is necessary, provided a free sleeve is available (often there is a dedicated spot for it). Immersion depth approx. 360 mm.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWho is my-PV?\u003c\/summary\u003e\u003cp\u003emy-PV GmbH is an Austrian manufacturer from Neuzeug, Upper Austria, specializing in photovoltaic-electric heating solutions. Market leader in the \"Power-to-Heat\" segment for private homes, over 100,000 devices sold worldwide. Manufacturer with local support and long-term spare parts supply.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails class=\"sv-faq-item\"\u003e\u003csummary\u003eWhere can I buy the MY-PV AC ELWA 2 in Austria?\u003c\/summary\u003e\u003cp\u003eAt SOLARVIC – your specialist dealer for photovoltaics and building technology in Austria. Order online at solarvic.at and benefit from current daily prices, expert advice and fast shipping. Free shipping from 5000 € within Austria.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Wie funktioniert die AC ELWA 2?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Misst PV-Überschuss am Hausanschluss und regelt 3,5 kW Heizstab stufenlos so, dass Netzeinspeisung auf null bleibt. Überschüssiger PV-Strom wird in Warmwasser gewandelt.\"}},{\"@type\":\"Question\",\"name\":\"Mit welchen Wechselrichtern kompatibel?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Praktisch alle Wechselrichter und Smart Meter über Modbus TCP, Modbus RTU oder my-PV Power Meter.\"}},{\"@type\":\"Question\",\"name\":\"Wieviel Warmwasser deckt sie ab?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"5 kWp PV und 300 L Speicher: 60 bis 80 Prozent Jahresdeckung. Ersparnis 250 bis 400 Euro pro Jahr bei 25 Cent kWh.\"}},{\"@type\":\"Question\",\"name\":\"Lohnt sich bei kleinen PV-Anlagen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Ja, da stufenlos ab Watt-Bereich geregelt wird. Auch kleinste Überschüsse werden verwertet.\"}},{\"@type\":\"Question\",\"name\":\"Speicheranschluss?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Standard G 1,5 Zoll Einschraubgewinde, passt in praktisch jeden Warmwasser- oder Pufferspeicher. Eintauchtiefe 360 mm.\"}},{\"@type\":\"Question\",\"name\":\"Wer ist my-PV?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Österreichischer Hersteller aus Neuzeug, Marktführer Power-to-Heat. Über 100.000 verkaufte Geräte weltweit.\"}},{\"@type\":\"Question\",\"name\":\"Wo kaufen?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Bei SOLARVIC auf solarvic.at, Fachhandel für Photovoltaik in Österreich. Gratis Versand ab 5000 Euro.\"}}]}\u003c\/script\u003e","brand":"my-PV","offers":[{"title":"Default Title","offer_id":57266507546955,"sku":"45213","price":770.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/5075\/6427\/files\/1-48-021355-jpg_800x800_4c075e95-af9c-4e9b-9471-3eb322aba932.jpg?v=1778511795","url":"https:\/\/solarvic.at\/en\/products\/my-pv-ac-elwa-2-heizstab-3-5-kw-photovoltaik-warmwasser","provider":"SOLARVIC | Photovoltaik \u0026 Haustechnik","version":"1.0","type":"link"}