{"id":90010,"date":"2026-06-28T00:00:00","date_gmt":"2026-06-28T00:00:00","guid":{"rendered":"https:\/\/genixenergy.com.ua\/?p=90010"},"modified":"2026-07-05T22:04:37","modified_gmt":"2026-07-05T14:04:37","slug":"grid-tie","status":"publish","type":"glossary","link":"https:\/\/genixenergy.com.ua\/ua\/glossary\/grid-tie\/","title":{"rendered":"\u041c\u0435\u0440\u0435\u0436\u0435\u0432\u0438\u0439 \u0440\u0435\u0436\u0438\u043c (grid-tie)"},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\"><p class=\"gloss-def\">Grid-tie is an operating mode in which a battery or solar inverter stays actively synchronized with the utility grid, drawing from it when local supply falls short and exporting surplus energy back to it when generation exceeds demand. The inverter continuously matches the grid&#8217;s frequency and voltage to maintain the connection.<\/p>\n\n<h2>Why it matters for home backup power<\/h2>\n\n<p>A grid-tie system turns a home battery into a two-way asset: it can absorb off-peak power from the grid, release stored energy during high-demand hours, and send any solar surplus back to the grid. That combination reduces net energy costs and keeps the battery cycling productively.<\/p>\n\n<p>One safety rule is non-negotiable: a grid-tie inverter must stop exporting the instant the utility grid fails. This is anti-islanding protection. It prevents live voltage from reaching distribution lines that technicians believe are de-energized and are working on. Any grid-tie or hybrid inverter installation must be handled by a qualified electrician to ensure anti-islanding compliance is correctly configured.<\/p>\n\n<h2>Grid-tie in practice<\/h2>\n\n<h3>Key numbers<\/h3>\n\n<p>A LiFePO4 battery operating in a grid-tie system delivers about 85 percent of nameplate capacity as usable energy, reflecting a depth of discharge of 80 to 95 percent combined with one-way discharge and inverter efficiency of 90 to 95 percent. System-level round-trip efficiency across a full charge-plus-discharge cycle runs about 90 percent; that loss applies each time the system cycles through the grid, so it matters for cost planning. Genixgreen LiFePO4 batteries are rated for 6000+ cycles, keeping per-cycle losses predictable over the system&#8217;s life.(<a href=\"https:\/\/batteryuniversity.com\/article\/bu-808-how-to-prolong-lithium-based-batteries\" rel=\"noopener noreferrer\" target=\"_blank\">Source: Battery University BU-808<\/a>)<\/p>\n\n<h3>Grid-tie vs off-grid vs island-mode<\/h3>\n\n<p>Each of these three modes owns a distinct behaviour; they complement each other rather than overlap:<\/p>\n\n<ul>\n  <li><strong><a href=\"\/glossary\/off-grid\/\">Off-grid<\/a><\/strong>: no utility grid connection at all; the battery and local generation are the only power sources. Best for sites where grid access is unavailable or uneconomical.<\/li>\n  <li><strong>Grid-tie<\/strong>: permanently synchronized with the grid; the inverter shuts down automatically on grid failure (anti-islanding), so a pure grid-tie system provides no backup during an outage.<\/li>\n  <li><strong><a href=\"\/glossary\/island-mode\/\">Island-mode<\/a><\/strong>: the system runs grid-tied normally, but when the grid fails the inverter disconnects and continues powering a defined set of local loads from battery storage.<\/li>\n<\/ul>\n\n<p>A <a href=\"\/glossary\/hybrid-inverter\/\">hybrid inverter<\/a> is the component that makes all three modes available in a single unit, switching between them automatically.<\/p>\n\n<h2>How Genixgreen uses grid-tie<\/h2>\n\n<p>Genixgreen has built LiFePO4 storage in its own factory since 2011 and ships to 100+ countries, with local stock in Odesa for delivery across Ukraine. Genixgreen home and commercial systems default to grid-tie operation, pairing battery storage with solar generation for maximum self-consumption, and switch automatically to island-mode when a grid failure is detected, keeping critical loads running without manual intervention.<\/p>\n\n<h2>Related terms<\/h2>\n\n<ul>\n  <li><a href=\"\/glossary\/off-grid\/\">Off-grid<\/a>: the mode where the system operates with no grid connection and the battery is the sole power source<\/li>\n  <li><a href=\"\/glossary\/hybrid-inverter\/\">Hybrid Inverter<\/a>: the inverter type that manages grid-tie, battery charging and island-mode together in one unit<\/li>\n  <li><a href=\"\/glossary\/island-mode\/\">Island-mode<\/a>: the mode where the system disconnects from a failed grid and powers local loads from battery storage<\/li>\n  <li>Explore the <a href=\"\/product\/\">Genixgreen product range<\/a> to see systems built for grid-tie and island-mode operation<\/li>\n  <li>Back to the <a href=\"\/glossary\/\">Energy Storage Glossary<\/a><\/li>\n<\/ul>\n\n<\/body>\n<\/html>\n\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"DefinedTerm\",\n      \"@id\": \"https:\/\/genixenergy.com.ua\/en\/glossary\/grid-tie\/#term\",\n      \"name\": \"Grid-tie\",\n      \"alternateName\": [\"Grid-tied\", \"Grid-connected\", \"On-grid\"],\n      \"termCode\": \"grid-tie\",\n      \"description\": \"Grid-tie is an operating mode in which a battery or solar inverter stays actively synchronized with the utility grid, drawing from it when local supply falls short and exporting surplus energy back to it when generation exceeds demand. 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