Hoymiles launches HiFlow Pro microinverter to boost DIY solar and storage
Summary
<p>Hangzhou, China-based solar and storage firm Hoymiles has launched the new HiFlow Pro, the U.S.’s first UL 3700-compliant plug-in microinverter. The latest offering from Hoymiles for the residential solar and... <a class="view-article" href="https://solarbuildermag.com/residential-solar/hoymiles-launches-hiflow-pro-microinverter-to-boost-diy-solar-and-storage/">View Article</a></p> <p>-- Solar Builder magazine</p>
<figure class="wp-block-image size-large"><img alt="Hoymiles HIFlow Pro residential microinverter" class="wp-image-60377" height="524" src="https://solarbuildermag.com/wp-content/uploads/2026/07/Hoymiles-HiFlow-Pro-1-700x524.jpg" width="700" /></figure>
<p>Hangzhou, China-based solar and storage firm <a href="https://www.hoymiles.com/">Hoymiles</a> has launched the new HiFlow Pro, the U.S.’s first <a href="https://solarbuildermag.com/news/ul-solutions-debuts-testing-criteria-for-plug-in-solar-systems/">UL 3700-compliant</a> plug-in microinverter.</p>
<p>The latest offering from Hoymiles for the <a href="https://solarbuildermag.com/energy-storage/home-storage-ai-vpps-obbba-and-other-acronyms-shaping-the-ess-market/">residential solar and storage market</a>, the HiFlow Pro represents a bid to capture the U.S.’s burgeoning DIY solar scene, company officials say. With the rise of plug-in solar — and related <a href="https://solarbuildermag.com/policy/balcony-solar-bills-take-hold-across-state-legislatures/">bills now signed into law in 10 states</a> — the firm is striking while the iron is hot, it says.</p>
<p>“By introducing the first UL 3700-compliant plug-in <a href="https://solarbuildermag.com/tag/microinverters/">microinverter</a> in the U.S., we’re not only launching a new product—we’re helping establish a new benchmark for residential solar that combines simplicity, safety, and high performance,” says Hoymiles CEO Dr. Yang Bo.</p>
<p>The new product is explicitly designed with plug-in, or “balcony solar” systems in mind, Bo adds. The practice of plug-in solar has taken off in Europe, seeing great success in Germany specifically, where there are an estimated 1.1 million registered systems. </p>
<p>Now after years of integration into the European market, Hoymiles is bringing its plug-in microinverter technology to American shores, officials say.</p>
<h3 class="wp-block-heading" id="h-keeping-up-with-the-standard">Keeping up with the standard</h3>
<p>UL Solutions introduced its UL 3700 standard in response to the <a href="https://solarbuildermag.com/news/balcony-solar-products-hit-us-market/">plug-in solar boom</a>, which started in Utah last year. As the first North American safety standard regarding balcony solar systems, the market had a need for “dedicated safety framework” regarding new products, especially if those products were available on store shelves.</p>
<p>The HiFlow Pro microinverter aims to allow Hoymiles to lead that safety system transition, the company says, and is “optimized for residential plug-in PV applications to ensure maximum energy harvest.”</p>
<p>The new product promises high energy yield, enabled by its “industry-leading” efficiency for maximum power point tracking (MPPT). The firm says the new system can perform at 99.8% static and 99.5% dynamic efficiency levels, as well as maximize energy harvest in low-voltage situations. Additionally, the system can operate reliably from -40 degrees Fahrenheit to 149 degrees Fahrenheit, and supports parallel operation of up to four microinverters for one solar asset.</p>
<p>All of this comes with a plug-in setup, and <a href="https://www.bluetooth.com/">Bluetooth</a> and wi-fi commissioning in less than 60 seconds, Hoymiles representatives say.</p>
<p>The Hoymiles HiFlow Pro is available for purchase across the U.S. now, the company says.</p>
<p>-- Solar Builder magazine</p>