{"id":11222,"date":"2025-09-08T17:35:19","date_gmt":"2025-09-08T09:35:19","guid":{"rendered":"https:\/\/www.bluesunpv.com\/?p=11222"},"modified":"2025-09-08T17:45:26","modified_gmt":"2025-09-08T09:45:26","slug":"designing-a-1mw-2mwh-solar-storage-project","status":"publish","type":"post","link":"https:\/\/www.bluesunpv.com\/fr\/blog\/designing-a-1mw-2mwh-solar-storage-project\/","title":{"rendered":"Conception d'un projet solaire + stockage de 1MW \/ 2MWh"},"content":{"rendered":"
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In this article, we\u2019ll walk through the key steps in designing a 1MW solar + 2MWh battery storage project, using an AC-coupled architecture as an example. Whether you\u2019re planning a new project or upgrading an existing solar system, these considerations will help you build a reliable and cost-effective solution.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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1\ufe0f\u20e3 Define Energy Goals and Load Profile<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Before diving into system design, it\u2019s essential to understand your energy needs.<\/p>

Ask these questions:<\/p>

Is the system primarily for peak shaving to lower electricity demand charges?<\/p>

Do you need backup power to protect against grid outages?<\/p>

Are you aiming to sell excess power back to the grid?<\/p>

Will the system participate in demand response or frequency regulation programs?<\/p>

Example:
A factory may consume large amounts of power during the day and face high peak electricity rates.
A 1MW solar + 2MWh storage system could offset daytime energy use while storing excess power to cover evening peak periods.<\/p>

By mapping out your load profile (hourly energy consumption throughout the day), you can determine the right balance between solar generation and battery storage capacity.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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2\ufe0f\u20e3 Choose Between AC-Coupled and DC-Coupled Architecture<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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One of the most critical design decisions is whether to use an AC-coupled or DC-coupled system.<\/p>

Feature AC-Coupled System DC-Coupled System
Design Solar inverter and battery inverter are separate, connected on AC side. Solar and storage share the same DC bus.
Ideal For Retrofit projects, flexible expansion. New projects where efficiency is a priority.
Efficiency Slightly lower due to double conversion. Higher, single conversion path.
Scalability Easy to add more solar or storage later. Limited by initial inverter sizing.<\/p>

For a 1MW \/ 2MWh project, AC coupling is often preferred because:<\/p>

It allows independent operation of solar and storage systems.<\/p>

The project can be built in stages: install solar first, then add storage later.<\/p>

It\u2019s ideal for retrofitting existing solar plants.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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3\ufe0f\u20e3 System Sizing Example: 1MW Solar + 2MWh Storage<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Let\u2019s look at a practical example of system sizing using Bluesun\u2019s integrated solution.<\/p>

Solar Component<\/p>

610W half-cell TOPCon solar panels<\/p>

Total panels required: 1,638 pieces<\/p>

Total solar capacity: \u2248 1MW<\/p>

These high-efficiency panels maximize energy generation in limited space, ideal for commercial rooftops or ground-mounted installations.<\/p>

Energy Storage Component<\/p>

125kW \/ 261kWh integrated storage cabinets, 8 units total<\/p>

Total storage capacity: 2MWh<\/p>

Each cabinet contains five 166.4V \/ 314Ah lithium battery modules, including a built-in BMS (Battery Management System).<\/p>

Cabinets can be connected in parallel for easy scalability.<\/p>

This configuration provides 8 hours of storage at 250kW discharge or 4 hours at 500kW, depending on operational strategy.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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4\ufe0f\u20e3 Key Technology Components<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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When designing a solar + storage project, pay attention to these core elements:<\/p>

(1) Solar Panels<\/p>

TOPCon technology for high conversion efficiency and better low-light performance.<\/p>

Half-cell design to reduce internal power losses.<\/p>

Long lifespan with robust wind and snow load resistance.<\/p>

(2) Lithium Battery Modules<\/p>

LFP chemistry (Lithium Iron Phosphate) for safety and stability.<\/p>

Over 6,000 charge\/discharge cycles, ensuring long-term performance.<\/p>

Integrated BMS for real-time monitoring and protection.<\/p>

(3) Energy Management System (EMS)<\/p>

The EMS is the brain of the system, optimizing when to charge or discharge the battery.
It enables:<\/p>

Peak shaving and load shifting.<\/p>

Integration with local utility tariffs.<\/p>

Remote monitoring and maintenance.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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\ud83d\udccc Conclusion: Building a Future-Proof Energy System<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Designing a 1MW solar + 2MWh battery storage project<\/strong> requires careful planning and the right technology.
By clearly defining energy goals, choosing the right system architecture, and selecting reliable components, businesses can build a sustainable, cost-effective energy solution<\/strong>.<\/p>

Bluesun<\/strong> offers comprehensive support, from system design to manufacturing and technical services, helping customers worldwide deploy scalable solar + storage projects.<\/p>

If you\u2019re ready to take the next step toward energy independence<\/strong>, contact a trusted solution provider like Bluesun<\/strong> to customize your project today.<\/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\t\t<\/div>","protected":false},"excerpt":{"rendered":"

Dans cet article, nous allons passer en revue les \u00e9tapes cl\u00e9s de la conception d'un projet solaire de 1MW + 2MWh de stockage en batterie, en utilisant comme exemple une architecture coupl\u00e9e au courant alternatif. Que vous planifiez un nouveau projet ou que vous mettiez \u00e0 niveau un syst\u00e8me solaire existant, ces consid\u00e9rations vous aideront \u00e0 construire une solution fiable et rentable. 1\ufe0f\u20e3 D\u00e9finir les objectifs \u00e9nerg\u00e9tiques et la charge [...]<\/p>","protected":false},"author":5,"featured_media":11223,"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-11222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"acf":[],"yoast_head":"\nDesigning a 1MW \/ 2MWh Solar + Storage Project - Bluesun Solar<\/title>\n<meta name=\"description\" content=\"In this article, we\u2019ll walk through the key steps in designing a 1MW solar + 2MWh battery storage project, using an AC-coupled architecture as an example. 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