{"id":991482,"date":"2026-09-22T15:50:26","date_gmt":"2026-09-22T07:50:26","guid":{"rendered":"https:\/\/genixenergy.com.ua\/en\/?p=991482"},"modified":"2026-09-22T16:27:15","modified_gmt":"2026-09-22T08:27:15","slug":"home-battery-backup-faq-ukraine","status":"publish","type":"post","link":"https:\/\/genixenergy.com.ua\/ru\/blog\/home-battery-backup-faq-ukraine\/","title":{"rendered":"FAQ \u043e \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u043c \u043f\u0438\u0442\u0430\u043d\u0438\u0438 \u0434\u043e\u043c\u0430 \u0432 \u0423\u043a\u0440\u0430\u0438\u043d\u0435"},"content":{"rendered":"<div class=\"vgblk-rw-wrapper limit-wrapper\">\n<style>.gg-storage-faq{color:#0b1e3d}.gg-storage-faq .gg-qa-card{border:1px solid #d7e0ee;border-radius:8px;margin:12px 0;background:#fff;padding:0 20px}.gg-storage-faq .gg-qa-card summary{cursor:pointer;padding:19px 0;font-size:19px;line-height:1.5;font-weight:600;color:#0b1e3d}.gg-storage-faq .gg-qa-card summary:focus-visible{outline:3px solid #2563eb;outline-offset:4px}.gg-storage-faq .gg-qa-card[open] summary{border-bottom:1px solid #eef2f8;margin-bottom:18px}.gg-storage-faq .gg-qa-card p{margin-bottom:1em}.gg-storage-faq .gg-qa-sources{font-size:14px;line-height:1.7;padding-bottom:10px}.gg-storage-faq .gg-qa-scope{font-size:15px;color:#4a5670;border-left:3px solid #2563eb;padding-left:16px}.gg-storage-faq nav a{display:inline-block;margin:4px 18px 4px 0}@media(max-width:600px){.gg-storage-faq .gg-qa-card{padding:0 14px}.gg-storage-faq .gg-qa-card summary{font-size:17px}}<\/style>\n<div class=\"gg-storage-faq\">\n<p>A home backup system is easier to plan when power, energy and charging time are treated as separate questions. This FAQ helps households in Ukraine prepare a load list, compare options and ask installers the right questions before choosing equipment.<\/p>\n<p class=\"gg-qa-scope\">This is general planning information from Genixgreen. It is not a site design, a wiring guide, a product compatibility statement or a promise of runtime. Fixed circuits and settings must be checked against the manuals for the exact equipment and handled by qualified professionals where required.<\/p>\n<p>Choose a question to read the answer.<\/p>\n<nav>\n<a href=\"#needs\">Start with the loads you need<\/a>\n<a href=\"#size\">Understand power, energy and runtime<\/a>\n<a href=\"#operation\">Check charging, communication and temperature limits<\/a>\n<\/nav>\n<h2 id=\"needs\">Start with the loads you need<\/h2>\n<details class=\"gg-qa-card\" id=\"h001\"><summary><strong>Should I back up only internet and a computer, or the whole home?<\/strong><\/summary>\n<p>List the devices that must keep working during an outage before deciding whether to cover the whole home. Internet equipment, a computer, basic lighting and heating controls can form a critical-load group. Water heating, cooking and other high-demand appliances should be assessed separately for each household. Fewer essential loads usually let the same available energy last longer. Whole-home backup also requires checks of simultaneous power, circuits and the transfer arrangement. Start with a list of each device, its power, daily use time and whether it can be paused.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/samrepo.nlr.gov\/help\/grid_outage.html\" rel=\"noopener\" target=\"_blank\">SAM: critical loads and outages<\/a> \u00b7 <a href=\"https:\/\/www.nlr.gov\/news\/video\/text-version-solar-resilience\" rel=\"noopener\" target=\"_blank\">NLR: solar and battery backup<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h002\"><summary><strong>Should I choose a portable power station, UPS, or inverter with battery?<\/strong><\/summary>\n<p>Choose by mobility, outage duration and how much interruption the protected equipment can accept. A portable power station can suit equipment that needs to move or plug in directly, but its output and transfer specifications still need checking. A UPS should be selected around the interruption tolerance of the protected device. An inverter and battery system can be expanded around planned loads and runtime. These categories can overlap, so the name alone is not enough to choose. Any connection to fixed circuits needs a design based on the equipment manuals and work by a qualified electrician where required.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.energy.gov\/cmei\/buildings\/uninterruptible-power-supplies\" rel=\"noopener\" target=\"_blank\">U.S. DOE: uninterruptible power supplies<\/a> \u00b7 <a href=\"https:\/\/www.nlr.gov\/news\/video\/text-version-solar-resilience\" rel=\"noopener\" target=\"_blank\">NLR: solar and battery backup<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h005\"><summary><strong>What if an outage lasts a long time and the battery runs out?<\/strong><\/summary>\n<p>A battery stores available energy. It cannot guarantee power for an unlimited outage. Before a long outage, reduce non-essential loads and decide which devices will be stopped first. Check whether the system has a compatible generator or a solar configuration that can charge while operating away from the grid. Solar charging depends on weather and the system design. If there is no usable charging source, plan to stop non-essential consumption before stored energy is depleted and prepare an alternative arrangement. Do not expect normal household consumption to continue unchanged until power returns.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/samrepo.nlr.gov\/help\/grid_outage.html\" rel=\"noopener\" target=\"_blank\">SAM: critical loads and outages<\/a> \u00b7 <a href=\"https:\/\/www.nlr.gov\/news\/video\/text-version-solar-resilience\" rel=\"noopener\" target=\"_blank\">NLR: solar and battery backup<\/a><\/p><\/details>\n<h2 id=\"size\">Understand power, energy and runtime<\/h2>\n<details class=\"gg-qa-card\" id=\"h007\"><summary><strong>What is the difference between kW, kWh and Ah?<\/strong><\/summary>\n<p>kW is power: it answers how much load can run at the same time. kWh is energy: it answers how much energy can be supplied over time. Ah is charge capacity, so it must be paired with voltage before comparing battery energy. Nominal voltage in V multiplied by capacity in Ah, divided by 1,000, gives approximate nominal kWh. For example, 51.2 V \u00d7 100 Ah \u00f7 1,000 = about 5.12 kWh. This is a teaching example, not a product specification or the energy available at a socket. Reserve settings, conversion losses, temperature and battery condition affect usable energy.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.eia.gov\/energyexplained\/electricity\/measuring-electricity.php\" rel=\"noopener\" target=\"_blank\">EIA: power and energy<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h008\"><summary><strong>How can I measure what my fridge, boiler, lights and computer really use?<\/strong><\/summary>\n<p>Measure a representative period of actual use instead of multiplying nameplate power by a full day. For plug-in equipment that is suitable for measurement, use an energy meter with an appropriate rating and record cumulative kWh and the measurement time. For a fridge or boiler, include startup, standby and normal operating cycles. Fixed circuits should be measured by an electrician. Cumulative kWh helps build an energy budget, while startup capability still needs a separate check against the appliance and inverter specifications. One day of measurement does not automatically represent winter or year-round use.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.eia.gov\/energyexplained\/electricity\/measuring-electricity.php\" rel=\"noopener\" target=\"_blank\">EIA: power and energy<\/a> \u00b7 <a href=\"https:\/\/samrepo.nlr.gov\/help\/electric_load.html\" rel=\"noopener\" target=\"_blank\">SAM: time-series load data<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h010\"><summary><strong>How long will a 5 kWh or 10 kWh battery run my equipment?<\/strong><\/summary>\n<p>Runtime is approximately the usable energy available at the socket divided by the average load during that period. As an illustration, if one 5 kWh system can actually supply 4 kWh to loads and the average load is 0.5 kW, the result is about eight hours. If another 10 kWh system can supply 8 kWh at the same average load, the result is about sixteen hours. The 4 and 8 kWh figures are assumptions for the example, not a universal 80% rule. Without measured usable energy and load data, 5 kWh or 10 kWh alone cannot promise runtime.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.eia.gov\/energyexplained\/electricity\/measuring-electricity.php\" rel=\"noopener\" target=\"_blank\">EIA: power and energy<\/a> \u00b7 <a href=\"https:\/\/samrepo.nlr.gov\/help\/grid_outage.html\" rel=\"noopener\" target=\"_blank\">SAM: critical loads and outages<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h020\"><summary><strong>Do I need a 3 kW, 5 kW or larger inverter?<\/strong><\/summary>\n<p>Choose inverter power from the critical loads that run together, their startup demand and the power the battery can supply. Do not choose 3 kW or 5 kW from floor area alone. First calculate normal simultaneous demand. Then check the peak and duration needed by motor-driven equipment, along with the inverter\u2019s continuous-output limit, temperature derating and the battery or BMS discharge limit. Select any design allowance from the specifications of the actual devices. A larger inverter does not automatically increase the power the battery can provide, and it does not make runtime longer. Do not treat kVA as automatically equal to kW.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2023\/01\/ESHB2020_Ch15_ESMS_Nguyen.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: energy storage management<\/a> \u00b7 <a href=\"https:\/\/reopt.nlr.gov\/tool\/reopt-user-manual.pdf\" rel=\"noopener\" target=\"_blank\">NREL: planning resilient energy systems<\/a><\/p><\/details>\n<h2 id=\"operation\">Check charging, communication and temperature limits<\/h2>\n<details class=\"gg-qa-card\" id=\"h022\"><summary><strong>Why will my battery and inverter not communicate if both have communication ports?<\/strong><\/summary>\n<p>A matching connector shape does not prove that two devices can communicate. The battery and inverter also need supported protocols, port definitions, cable wiring and suitable firmware. Some systems need a gateway or manufacturer-specified bus termination. Communication can allow the system to receive battery status and permitted charge and discharge limits. Start troubleshooting by checking the manufacturer compatibility list and the complete model names at both ends, then follow the manual for that specific combination. Do not copy another system\u2019s network-cable wiring or CAN settings. Open-loop operation and loss-of-communication protection must be confirmed for the exact model.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2023\/01\/ESHB2020_Ch15_ESMS_Nguyen.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: energy storage management<\/a> \u00b7 <a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2021\/09\/SAND2016-3078R.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: storage performance testing<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h025\"><summary><strong>Can two hours of grid power recharge enough energy for the next outage?<\/strong><\/summary>\n<p>Calculate the energy that can actually enter the battery in those two hours and compare it with the next planned outage load. First confirm available AC input after checking the connection capacity, equipment configuration and applicable per-phase constraints. Then subtract household demand and account for charger, battery or BMS limits and losses. For illustration only, 3 kW of confirmed available AC input minus 1 kW of household demand leaves 2 kW for charging. With an assumed 90% charging efficiency, two hours could add at most about 3.6 kWh. Cold-temperature limits and charge taper near full state can reduce this. The figures are assumptions, and the next outage load must also include discharge-conversion losses.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2023\/01\/ESHB2020_Ch15_ESMS_Nguyen.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: energy storage management<\/a> \u00b7 <a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2021\/09\/SAND2016-3078R.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: storage performance testing<\/a><\/p><\/details>\n<details class=\"gg-qa-card\" id=\"h037\"><summary><strong>Can a battery charge in winter in a cold garage or on a balcony?<\/strong><\/summary>\n<p>Whether a battery can charge in winter depends on the charging-temperature range in its manual and the actual battery temperature, not only the weather forecast or whether it can still discharge. Permitted charging and discharging ranges can be different. For a system with low-temperature protection, confirm that the protection can stop every charging source in the installed configuration. For a product with self-heating, confirm its heating-start conditions. Below the temperature permitted for the exact model, do not bypass protection to force charging. There is no universal 0\u00b0C or +5\u00b0C threshold for every battery, heating method or protection arrangement.<\/p>\n<p class=\"gg-qa-sources\"><a href=\"https:\/\/www.sandia.gov\/app\/uploads\/sites\/163\/2023\/01\/ESHB2020_Ch15_ESMS_Nguyen.pdf\" rel=\"noopener\" target=\"_blank\">Sandia: energy storage management<\/a> \u00b7 <a href=\"https:\/\/www.sandia.gov\/research\/publications\/details\/impact-of-heating-and-cooling-loads-on-battery-energy-storage-system-sizing-2023-09-01\/\" rel=\"noopener\" target=\"_blank\">Sandia: temperature and auxiliary loads<\/a><\/p><\/details>\n<h2>Prepare your next step<\/h2>\n<p>Use this FAQ to prepare a load list and questions for the installer. Before purchase or installation, verify the manuals, compatible models, local requirements and the conditions at the actual site.<\/p>\n<h2>Related guides<\/h2>\n<ul>\n<li><a href=\"https:\/\/genixenergy.com.ua\/en\/blog\/battery-runtime-hours\/\">Battery runtime: worked examples<\/a><\/li>\n<li><a href=\"https:\/\/genixenergy.com.ua\/en\/blog\/inverter-sizing-formula\/\">How to size an inverter<\/a><\/li>\n<li><a href=\"https:\/\/genixenergy.com.ua\/en\/blog\/lifepo4-winter-charging\/\">LiFePO4 charging in winter<\/a><\/li>\n<li><a href=\"https:\/\/genixenergy.com.ua\/en\/blog\/business-battery-backup-faq-ukraine\/\">Battery backup questions for businesses<\/a><\/li>\n<\/ul>\n<\/div>\n<\/div><!-- .vgblk-rw-wrapper -->","protected":false},"excerpt":{"rendered":"<p>\u041f\u043e\u043d\u044f\u0442\u043d\u044b\u0435 \u043e\u0442\u0432\u0435\u0442\u044b \u043e \u0434\u043e\u043c\u0430\u0448\u043d\u0435\u043c \u0440\u0435\u0437\u0435\u0440\u0432\u043d\u043e\u043c \u043f\u0438\u0442\u0430\u043d\u0438\u0438: \u0432\u0430\u0436\u043d\u044b\u0435 \u043d\u0430\u0433\u0440\u0443\u0437\u043a\u0438, \u043a\u0412\u0442 \u0438 \u043a\u0412\u0442\u00b7\u0447, \u0430\u0432\u0442\u043e\u043d\u043e\u043c\u043d\u043e\u0441\u0442\u044c, \u0438\u043d\u0432\u0435\u0440\u0442\u043e\u0440, \u0437\u0430\u0440\u044f\u0434\u043a\u0430 \u0438 \u0440\u0430\u0431\u043e\u0442\u0430 \u0432 \u0445\u043e\u043b\u043e\u0434\u0435 \u0434\u043b\u044f \u043e\u0431\u043e\u0441\u043d\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0432\u044b\u0431\u043e\u0440\u0430.<\/p>","protected":false},"author":1,"featured_media":991489,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-991482","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-backup-power"],"_links":{"self":[{"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/posts\/991482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/comments?post=991482"}],"version-history":[{"count":2,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/posts\/991482\/revisions"}],"predecessor-version":[{"id":991486,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/posts\/991482\/revisions\/991486"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/media\/991489"}],"wp:attachment":[{"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/media?parent=991482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/categories?post=991482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/genixenergy.com.ua\/ru\/wp-json\/wp\/v2\/tags?post=991482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}