{"id":11120,"date":"2025-08-19T14:35:15","date_gmt":"2025-08-19T06:35:15","guid":{"rendered":"https:\/\/www.bluesunpv.com\/?p=11120"},"modified":"2025-08-19T16:08:26","modified_gmt":"2025-08-19T08:08:26","slug":"how-to-calculate-the-right-battery-size-for-your-solar-energy-system","status":"publish","type":"post","link":"https:\/\/www.bluesunpv.com\/zh\/blog\/how-to-calculate-the-right-battery-size-for-your-solar-energy-system\/","title":{"rendered":"\u5982\u4f55\u70ba\u60a8\u7684\u592a\u967d\u80fd\u7cfb\u7d71\u8a08\u7b97\u5408\u9069\u7684\u96fb\u6c60\u5c3a\u5bf8"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"11120\" class=\"elementor elementor-11120\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-67df37a8 e-flex e-con-boxed e-con e-parent\" data-id=\"67df37a8\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d3fb8c5 elementor-widget elementor-widget-text-editor\" data-id=\"d3fb8c5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>\u9078\u64c7\u9069\u5408\u60a8\u7684\u96fb\u6c60\u898f\u683c <span style=\"color: #000000;\"><strong data-start=\"276\" data-end=\"299\"><a style=\"color: #000000;\" href=\"\/zh\/commercial-industrial-energy-system-solutions\/\">\u592a\u967d\u80fd\u7cfb\u7d71<\/a><\/strong><\/span> \u5c0d\u65bc\u78ba\u4fdd\u53ef\u9760\u7684\u96fb\u529b\u4f9b\u61c9\u3001\u6700\u5927\u5316\u6548\u7387\u4ee5\u53ca\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6210\u672c\u4f86\u8aaa\uff0c\u592a\u967d\u80fd\u96fb\u6c60\u5132\u5b58\u7684\u5927\u5c0f\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u4ee5\u4e0b\u662f\u4e00\u4efd\u7c21\u55ae\u7684\u6307\u5357\uff0c\u53ef\u5354\u52a9\u60a8\u6b63\u78ba\u8abf\u6574\u592a\u967d\u80fd\u96fb\u6c60\u5132\u5b58\u8a2d\u5099\u7684\u5927\u5c0f\u3002<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbf72b8 elementor-widget elementor-widget-image\" data-id=\"cbf72b8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1820\" height=\"900\" src=\"https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage.png\" class=\"attachment-full size-full wp-image-11121\" alt=\"\" srcset=\"https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage.png 1820w, https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage-300x148.png 300w, https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage-1024x506.png 1024w, https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage-768x380.png 768w, https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage-1536x760.png 1536w, https:\/\/www.bluesunpv.com\/wp-content\/uploads\/2025\/08\/how-to-size-solar-battery-storage-18x9.png 18w\" sizes=\"(max-width: 1820px) 100vw, 1820px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-df67a46 elementor-widget elementor-widget-heading\" data-id=\"df67a46\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1\ufe0f\u20e3\u77ad\u89e3\u60a8\u6bcf\u65e5\u7684\u80fd\u6e90\u4f7f\u7528\u91cf<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8135c44 elementor-widget elementor-widget-text-editor\" data-id=\"8135c44\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-start=\"522\" data-end=\"636\">\u6aa2\u67e5\u60a8\u7684\u96fb\u8cbb\u5e33\u55ae\u6216\u4f7f\u7528\u80fd\u6e90\u8a08\u91cf\u8868\uff0c\u627e\u51fa\u60a8\u6bcf\u5929\u6d88\u8017\u591a\u5c11\u5343\u74e6\u6642 (kWh)\u3002<\/p><p data-start=\"638\" data-end=\"751\"><strong data-start=\"638\" data-end=\"650\">\u7bc4\u4f8b\uff1a<\/strong> \u5982\u679c\u60a8\u5bb6\u6bcf\u5929\u4f7f\u7528 20 \u5ea6\u96fb\uff0c\u60a8\u7684\u96fb\u6c60\u81f3\u5c11\u9700\u8981\u5132\u5b58\u9019\u500b\u96fb\u91cf\u624d\u80fd\u6eff\u8db3\u65e5\u5e38\u9700\u6c42\u3002<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-189e34a elementor-widget elementor-widget-heading\" data-id=\"189e34a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2\ufe0f\u20e3\u6c7a\u5b9a\u4f60\u7684\u81ea\u4e3b\u65e5<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33191f3 elementor-widget elementor-widget-text-editor\" data-id=\"33191f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-start=\"798\" data-end=\"861\">\u60a8\u5e0c\u671b\u7cfb\u7d71\u5728\u6c92\u6709\u967d\u5149\u7167\u5c04\u7684\u60c5\u6cc1\u4e0b\u904b\u884c\u591a\u5c11\u5929\uff1f<\/p><ul data-start=\"862\" data-end=\"941\"><li data-start=\"862\" data-end=\"897\"><p data-start=\"864\" data-end=\"897\"><strong data-start=\"864\" data-end=\"876\">1-2 \u5929<\/strong> \u9069\u7528\u65bc\u967d\u5149\u5145\u8db3\u7684\u6c23\u5019<\/p><\/li><li data-start=\"898\" data-end=\"941\"><p data-start=\"900\" data-end=\"941\"><strong data-start=\"900\" data-end=\"912\">3-5 \u5929<\/strong> \u9069\u7528\u65bc\u504f\u9060\u6216\u591a\u96f2\u5730\u5340<\/p><\/li><\/ul><p data-start=\"943\" data-end=\"1010\"><strong data-start=\"943\" data-end=\"955\">\u516c\u5f0f\uff1a<\/strong><br data-start=\"955\" data-end=\"958\" \/>\u96fb\u6c60\u5bb9\u91cf (kWh) = \u6bcf\u65e5\u4f7f\u7528\u91cf \u00d7 \u81ea\u4e3b\u5929\u6578<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b550d94 elementor-widget elementor-widget-heading\" data-id=\"b550d94\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3\ufe0f\u20e3 \u8003\u616e\u6392\u653e\u6df1\u5ea6 (DoD)<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-beb9069 elementor-widget elementor-widget-text-editor\" data-id=\"beb9069\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-start=\"1065\" data-end=\"1105\">\u96fb\u6c60\u7121\u6cd5\u5b8c\u5168\u8017\u76e1\u3002<\/p><ul data-start=\"1106\" data-end=\"1164\"><li data-start=\"1106\" data-end=\"1137\"><p data-start=\"1108\" data-end=\"1137\"><strong data-start=\"1108\" data-end=\"1123\">\u92f0\u96e2\u5b50<\/strong>: 80-90% DoD<\/p><\/li><li data-start=\"1138\" data-end=\"1164\"><p data-start=\"1140\" data-end=\"1164\"><strong data-start=\"1140\" data-end=\"1153\">\u925b\u9178<\/strong>:50% DoD<\/p><\/li><\/ul><p data-start=\"1166\" data-end=\"1213\">\u6839\u64da\u96fb\u6c60\u985e\u578b\u8abf\u6574\u5bb9\u91cf\u3002<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a2b7b5 elementor-widget elementor-widget-heading\" data-id=\"4a2b7b5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4\ufe0f\u20e3\u7cfb\u7d71\u6548\u7387\u56e0\u7d20<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e97967c elementor-widget elementor-widget-text-editor\" data-id=\"e97967c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>\u640d\u8017\u767c\u751f\u5728\u9006\u8b8a\u5668\u548c\u914d\u7dda\u4e2d\u3002\u5c07\u7d50\u679c\u4e58\u4ee5 <strong data-start=\"1324\" data-end=\"1335\">1.1-1.2<\/strong> \u4ee5\u78ba\u4fdd\u6e96\u78ba\u6027\u3002<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-019b48c elementor-widget elementor-widget-heading\" data-id=\"019b48c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\ud83d\udccc \u8a08\u7b97\u7bc4\u4f8b<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-85c463d elementor-widget elementor-widget-text-editor\" data-id=\"85c463d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-start=\"1385\" data-end=\"1481\">\u6bcf\u65e5\u4f7f\u7528\u91cf\uff1a20 kWh<br data-start=\"1404\" data-end=\"1407\" \/>\u81ea\u6cbb\u65e5\uff1a3<br data-start=\"1423\" data-end=\"1426\" \/>\u96fb\u6c60\u985e\u578b\uff1a\u92f0\u96e2\u5b50 (90% DoD)<br data-start=\"1461\" data-end=\"1464\" \/>\u6548\u7387\uff1a90%<\/p><p data-start=\"1483\" data-end=\"1533\">\u6240\u9700\u96fb\u6c60 = 20 \u00d7 3 \u00f7 0.9 \u00f7 0.9 \u2248 <strong data-start=\"1523\" data-end=\"1533\">74 \u5343\u74e6\u6642<\/strong><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-eaefaa9 elementor-widget elementor-widget-heading\" data-id=\"eaefaa9\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">\ud83d\ude80 Bluesun \u96fb\u6c60\u89e3\u6c7a\u65b9\u6848<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c87e803 elementor-widget elementor-widget-text-editor\" data-id=\"c87e803\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-start=\"1575\" data-end=\"1781\">\u85cd\u6e96\u63d0\u4f9b <strong data-start=\"1592\" data-end=\"1635\">\u92f0\u96e2\u5b50\u548c LiFePO4 \u96fb\u6c60\u7cfb\u7d71<\/strong> \u5f9e <strong data-start=\"1641\" data-end=\"1657\">5kWh \u81f3 1MWh<\/strong>\u6211\u5011\u7684\u5c08\u5bb6\u53ef\u4ee5\u6839\u64da\u60a8\u7684\u5be6\u969b\u9700\u6c42\u70ba\u60a8\u8abf\u6574\u96fb\u6c60\u7684\u5927\u5c0f\u3002\u6211\u5011\u7684\u5c08\u5bb6\u53ef\u6839\u64da\u60a8\u7684\u78ba\u5207\u9700\u6c42\u4f86\u8abf\u6574\u96fb\u6c60\u7684\u5927\u5c0f\u3002<\/p><p data-start=\"1783\" data-end=\"1841\">\ud83d\udc49 <a class=\"decorated-link\" href=\"\/zh\/contact-us_d2\/\" rel=\"noopener\" data-start=\"1786\" data-end=\"1801\"><span style=\"color: #ff6600;\">\u806f\u7d61\u6211\u5011<\/span><\/a> \u9032\u884c\u514d\u8cbb\u96fb\u6c60\u5c3a\u5bf8\u8aee\u8a62\u3002<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-96c677d e-flex e-con-boxed e-con e-parent\" data-id=\"96c677d\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c5258df elementor-widget elementor-widget-html\" data-id=\"c5258df\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<!DOCTYPE html>\r\n<html lang=\"en\">\r\n<head>\r\n<meta charset=\"UTF-8\">\r\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\r\n<title>Solar Battery Sizing Calculator<\/title>\r\n<style>\r\n    body {\r\n        font-family: \"Inter\", \"Segoe UI\", sans-serif;\r\n        background: #f9fafb;\r\n        margin: 0;\r\n        padding: 16px;\r\n        font-size: 14px;\r\n        color: #333;\r\n    }\r\n    .calculator-container {\r\n        max-width: 480px;\r\n        margin: auto;\r\n    }\r\n    .calculator-container h2 {\r\n        text-align: center; \/* \u53ea\u8ba9\u8ba1\u7b97\u5668\u6807\u9898\u5c45\u4e2d *\/\r\n    }\r\n    .calculator {\r\n        background: white;\r\n        padding: 20px;\r\n        border-radius: 12px;\r\n        box-shadow: 0 4px 16px rgba(0,0,0,0.08);\r\n    }\r\n    label {\r\n        font-weight: 500;\r\n        margin-top: 12px;\r\n        display: block;\r\n    }\r\n    input, select, button {\r\n        width: 100%;\r\n        padding: 9px;\r\n        margin-top: 5px;\r\n        border-radius: 8px;\r\n        border: 1px solid #ccc;\r\n        font-size: 14px;\r\n    }\r\n    button {\r\n        background: #ffb400;\r\n        color: white;\r\n        border: none;\r\n        cursor: pointer;\r\n        font-weight: 600;\r\n        margin-top: 14px;\r\n        transition: background 0.3s;\r\n    }\r\n    button:hover {\r\n        background: #e09e00;\r\n    }\r\n    .result {\r\n        background: #f0fdf4;\r\n        border: 1px solid #bbf7d0;\r\n        padding: 12px;\r\n        border-radius: 10px;\r\n        margin-top: 16px;\r\n        display: none;\r\n        font-size: 14px;\r\n    }\r\n    .cta {\r\n        background: #25d366;\r\n        color: white;\r\n        padding: 12px;\r\n        text-align: center;\r\n        border-radius: 10px;\r\n        margin-top: 16px;\r\n        text-decoration: none;\r\n        display: block;\r\n        font-weight: 500;\r\n        font-size: 14px;\r\n    }\r\n    .cta:hover {\r\n        background: #1ebe5a;\r\n    }\r\n    @media (max-width: 480px) {\r\n        body { font-size: 13px; padding: 12px; }\r\n        .calculator h2 { font-size: 16px; }\r\n        input, select, button { font-size: 13px; padding: 8px; }\r\n        .result { font-size: 13px; }\r\n    }\r\n<\/style>\r\n<\/head>\r\n<body>\r\n\r\n\r\n<div class=\"calculator-container\">\r\n    <div class=\"calculator\">\r\n        <h2>\u592a\u967d\u80fd\u96fb\u6c60\u898f\u683c\u8a08\u7b97\u6a5f<\/h2>\r\n        <label>\u6bcf\u65e5\u80fd\u6e90\u6d88\u8017 (kWh)<\/label>\r\n        <input type=\"number\" id=\"dailyUsage\" placeholder=\"\u4f8b\u5982\uff1a20\" value=\"20\">\r\n\r\n        <label>\u81ea\u4e3b\u5929\u6578 (\u5929)<\/label>\r\n        <input type=\"number\" id=\"autonomyDays\" placeholder=\"\u4f8b\u5982\uff1a2\" value=\"2\">\r\n\r\n        <label>\u96fb\u6c60\u985e\u578b<\/label>\r\n        <select id=\"batteryType\">\r\n            <option value=\"0.9\">\u92f0 \/ LiFePO\u2084 (DoD 90%)<\/option>\r\n            <option value=\"0.5\">\u925b\u9178 (DoD 50%)<\/option>\r\n        <\/select>\r\n\r\n        <label>\u7cfb\u7d71\u6548\u7387 (%)<\/label>\r\n        <input type=\"number\" id=\"efficiency\" placeholder=\"\u4f8b\u5982\uff1a90\" value=\"90\">\r\n\r\n        <button onclick=\"calculateBattery()\">\u8a08\u7b97<\/button>\r\n\r\n        <div class=\"result\" id=\"resultBox\"><\/div>\r\n\r\n        <a href=\"https:\/\/wa.me\/8615858213997\" class=\"cta\">\u900f\u904e WhatsApp \u806f\u7d61\u6211\u5011<\/a>\r\n    <\/div>\r\n<\/div>\r\n\r\n<script>\r\nfunction calculateBattery() {\r\n    let dailyUsage = parseFloat(document.getElementById(\"dailyUsage\").value);\r\n    let autonomyDays = parseFloat(document.getElementById(\"autonomyDays\").value);\r\n    let DoD = parseFloat(document.getElementById(\"batteryType\").value);\r\n    let efficiency = parseFloat(document.getElementById(\"efficiency\").value) \/ 100;\r\n\r\n    if (isNaN(dailyUsage) || isNaN(autonomyDays) || isNaN(DoD) || isNaN(efficiency) || efficiency <= 0) {\r\n        alert(\"\u26a0\ufe0f Please enter valid parameters.\");\r\n        return;\r\n    }\r\n\r\n    let requiredCapacity = (dailyUsage * autonomyDays) \/ DoD \/ efficiency;\r\n    requiredCapacity = Math.round(requiredCapacity * 10) \/ 10;\r\n\r\n    let recommendation = \"\";\r\n    if (requiredCapacity <= 10) {\r\n        recommendation = \"Recommended: 5kWh \/ 10kWh modular battery\";\r\n    } else if (requiredCapacity <= 50) {\r\n        recommendation = \"Recommended: 15kWh \/ 20kWh \/ 30kWh battery system\";\r\n    } else if (requiredCapacity <= 200) {\r\n        recommendation = \"Recommended: 50kWh \/ 100kWh containerized ESS\";\r\n    } else {\r\n        recommendation = \"Recommended: 500kWh \/ 1MWh commercial & industrial ESS\";\r\n    }\r\n\r\n    document.getElementById(\"resultBox\").style.display = \"block\";\r\n    document.getElementById(\"resultBox\").innerHTML = `\r\n        <b>Required Battery Capacity:<\/b> ${requiredCapacity} kWh <br>\r\n        <b>Recommendation:<\/b> ${recommendation}\r\n    `;\r\n}\r\n<\/script>\r\n\r\n<\/body>\r\n<\/html>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Choosing the correct battery size for your solar energy system is essential to ensure reliable power supply, maximize efficiency, and avoid unnecessary costs. Here\u2019s a simple guide to help you size your solar battery storage correctly. 1\ufe0f\u20e3 Know Your Daily Energy Usage Check your electricity bills or use an energy meter to find out how [&hellip;]<\/p>","protected":false},"author":5,"featured_media":11126,"comment_status":"closed","ping_status":"open","sticky":false,"template":"single-news.php","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[],"class_list":["post-11120","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to Calculate the Right Battery Size for Your Solar Energy System - Bluesun Solar<\/title>\n<meta name=\"description\" content=\"Choosing the correct battery size for your solar energy system is essential to ensure reliable power supply, maximize efficiency, and avoid unnecessary costs. 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