一、项目概况 / I. Project Overview

项目位于坦桑尼亚桑给巴尔岛，热带海洋性气候，年均气温25-35°C，湿度常年80%以上，高盐雾环境。客户为建材加工厂，系统需为工厂生活区及办公区提供电力供应。

Located on Zanzibar Island, Tanzania — tropical maritime climate, annual average temperature 25–35°C, year-round humidity above 80%, with high salt-spray corrosion. The client is a building materials processing factory; the system powers the factory's living quarters and office area.

桑给巴尔与大陆电网连接有限，岛内电力供应不稳定，工业区每周平均遭遇2-3次停电。工厂使用柴油发电成本约0.28-0.35美元/度，且一次非计划停电可能导致整批产品报废。

Zanzibar's grid connection to the mainland is limited, and power supply is unstable — industrial zones experience an average of 2–3 outages per week. Diesel generation costs approximately USD 0.28–0.35/kWh, and a single unplanned outage can ruin an entire batch of products.

客户核心需求：保障7×24小时不间断供电、降低柴油依赖、设备适应海岛高盐雾环境、支持远程监控。

Core requirements: 24/7 uninterrupted power supply, reduced diesel dependency, equipment suited to high salt-spray island environment, remote monitoring capability.

二、系统方案 / II. System Solution

系统采用"光伏+储能+市电+柴油机"四源联动架构，优先级为光伏→储能→市电→柴油机，毫秒级切换，确保不间断运行。

The system adopts a four-source hybrid architecture: PV + Storage + Grid + Diesel, with priority PV → Storage → Grid → Diesel, millisecond-level switching ensuring uninterrupted operation.

三、关键技术 / III. Key Technologies

液冷温控：冷却液循环将电池温差控制在2°C以内（风冷方案为5-8°C），电池循环寿命提升20%以上。在热带海岛环境下意味着更低的更换成本和更长的使用周期。

Liquid-cooled thermal management: Coolant circulation keeps battery temperature difference within 2°C (vs. 5–8°C for air-cooled), improving cycle life by over 20%. In tropical island conditions, this means lower replacement costs and longer service life.

IP66户外防护：逆变器完全防尘、可承受强力喷水，在高盐雾环境中可直接户外安装，无需额外建设机房。安装在光伏阵列旁，缩短直流线缆走线，降低线损。

IP66 outdoor protection: The inverter is fully dust-tight and withstands powerful water jets. In high salt-spray environments, it can be installed outdoors without a dedicated equipment room. Mounted next to the PV array, it shortens DC cable runs and reduces line losses.

四源联动调度：① 光伏优先——白天直接供电，富余充入储能；② 储能补位——夜间/阴天放电支撑负载；③ 市电补充——储能不足时自动切换；④ 柴油兜底——市电不可用时最后保障。毫秒级切换，确保零中断。

Four-source dispatch logic: ① PV priority — direct daytime supply, surplus charges battery; ② Storage relay — discharges at night/cloudy periods; ③ Grid supplement — auto-switches when storage is low; ④ Diesel backup — last resort when grid is unavailable. Millisecond switching ensures zero interruption.

四、交付与运行 / IV. Delivery & Operation

储能柜、逆变器、配电系统在工厂内完成组装测试后整体发运，经海运（约30-45天）抵达桑给巴尔岛。合普煜团队全程协调清关文件，设备无损抵达现场。

The storage cabinet, inverter, and distribution system were assembled and tested at the factory, then shipped as a complete unit via sea freight (~30–45 days) to Zanzibar. The HBY team coordinated customs clearance documents throughout, and equipment arrived on-site undamaged.

施工团队在热带高温下完成126块光伏组件安装、逆变器挂装、储能柜就位及交流配电对接，随后完成四源联动逻辑验证、保护功能测试、并网/离网切换测试等全部调试工作。

The construction team completed installation of 126 PV modules, inverter mounting, storage cabinet placement, and AC distribution connection under tropical heat, followed by full commissioning including four-source dispatch logic verification, protection function testing, and on-grid/off-grid switching tests.

五、适用场景 / V. Applicable Scenarios

本项目的系统架构和交付模式同样适用于：热带地区工厂生活区、离网工业园区、沿海地区工商业等场景。坦桑尼亚政府已降低所有太阳能产品的增值税和关税，光伏系统投资回收期缩短至4-5年。

This system architecture and delivery model is equally applicable to: factory living quarters in tropical regions, off-grid industrial parks, and coastal commercial/industrial sites. The Tanzanian government has reduced VAT and tariffs on all solar products, shortening PV system payback to 4–5 years.

关于合普煜新能源 / About HEPUYU New Energy

合普煜新能源专注分布式光伏EPC、液冷储能系统集成、光储充微电网解决方案18年。服务覆盖项目开发、工程设计、设备集成、智能运维全链条。

HEPUYU New Energy has specialized in distributed PV EPC, liquid-cooled storage system integration, and PV-storage-charging microgrid solutions for 18 years. Services cover the full chain: project development, engineering design, equipment integration, and smart O&M.

[官网 / Website] www.bjhpy.com