常问问题

• 1、A solar power system at night runs entirely on stored battery power—solar panels cannot generate electricity without sunlight. Once the sun sets, your system switches seamlessly to battery mode without any manual intervention.

A Mars Solar power system at night draws from LiFePO4 batteries charged during daylight hours. These batteries deliver over 6,000 charge-discharge cycles at 95% depth of discharge, enough to cover typical household nighttime consumption for 8–12 hours on a full charge.

• 2、How to Size Your Battery for Nighttime Use

Calculate your evening and overnight kWh consumption, then size the battery bank to cover 1.2× that amount as a buffer for cloudy days. A 10 kWh battery typically covers 6–8 hours of moderate household load including lighting, ceiling fans, refrigerator, Wi-Fi router, and entertainment systems. For AC loads, plan 2–3 kWh per ton-hour of cooling.

• 3、How the System Switches to Night Mode

Hybrid inverters manage this transition automatically. The MPPT controller detects zero solar input, signals the BMS to discharge the battery, and your loads continue without interruption. Most users never notice the switchover—power delivery is seamless.

• 4、What Happens on Extended Cloudy Days
  If the battery drains below 20%, hybrid systems automatically pull from the grid (if available) or activate generator backup. Off-grid systems rely on the oversize factor you built into the battery bank. This is why we recommend sizing for 2–3 days of autonomy in regions with extended rainy seasons.

Explore Mars Solar Battery Systems → https://sunenergyfactory.com/products/energy-storage-system/

是的——完整条款已在线公布。Mars太阳能电池板：25年线性输出功率质保。锂电池、混合逆变器和充电控制器：2年质保。雷击损坏不在保修范围内——我们建议使用浪涌保护装置。.

是的——而且我们的大多数客户都这样做。Mars Solar 10KVA 混合逆变器支持电池容量扩展至 30 kWh，并且无需更换逆变器或重新布线即可扩展太阳能电池板阵列。在设计阶段就分享您的五年规划，我们将从一开始就为您预留充足的容量。.

根据当地电压和频率选择并网、离网或混合型逆变器。选择IP65防护等级、宽温范围、多路MPPT功能的逆变器。部分型号支持宽电压波动范围；请准备当地相关证书以办理清关手续。.

大多数情况下，确实如此——但远低于以往。一个10千瓦的太阳能系统阵列夏季每天发电量为50-60千瓦时，冬季则降至35-50千瓦时。混合式和完全离网系统可以消除或大幅降低对电网的依赖。Mars套件支持所有这三种配置。.

选择磷酸铁锂电池，可实现 6000 次以上的循环寿命，放电深度为 95%。电池容量计算公式为：每日用电量（千瓦时）× 续航天数 × 1.1。家用电源建议使用 48V 电压。电池盒必须达到 IP65+ 防护等级，并内置电池管理系统 (BMS)。.

重点关注功率（590W，兼顾空间利用率）、效率（23%+，适用于空间有限的屋顶）、温度系数（-0.30%/C 或更低，适用于炎热气候）以及25年线性输出质保。单晶PERC组件是大多数系统的最佳选择。.

大多数房主低估了用电量，实际用电量约为 20-30 千瓦时 (kWh)。简易估算方法：每月用电量（千瓦时）/ 30 = 日用电量，然后加上 10-20 千瓦时 (kWh) 的冬季用电量，以及 5-10 千瓦时 (kWh) 的系统缓冲电量。菲律宾和尼日利亚的大多数离网住宅需要 10-30 千瓦的太阳能系统和 15-60 千瓦时的蓄电池。.