100kW Off Grid Solar Battery System for Hotel in Lagos, Nigeria

① Location

In Lagos, Nigeria

② Customer Type

For a commercial hotel

③ Problem

Although the local utility power supply in Lagos is relatively stable, the hotel still experienced occasional power outages that affected daily operations and guest comfort.

At the same time, the hotel’s rooftop installation area was limited, making it difficult to deploy a larger solar power system.

The client wanted an efficient off grid solar battery system that could:

• Reduce dependence on utility electricity
• Provide backup power during outages
• Maximize solar energy utilization within limited rooftop space
• Improve overall energy efficiency for hotel operations

④ Solution

Installed a 100kW hybrid off grid solar battery system with 153.6kWh lithium battery storage.

To overcome rooftop space limitations, the system was carefully optimized according to available installation area, ensuring maximum solar power generation efficiency.

The solution integrates:

• Solar energy generation
• Battery energy storage
• Grid backup support

This allows the hotel to use solar energy as a supplementary power source while maintaining stable electricity supply during outages.

⑤ Technical Specifications

Installed a 100kW off grid solar battery system with 153.6kWh LiFePO4 battery storage.

System configuration:

• 194 pcs 600W solar panels
• 2 × Deye 50kW hybrid inverters
• 153.6kWh lithium battery storage system
• Hybrid system (solar + battery + grid integration)
• Intelligent energy management system (EMS)
• Optimized rooftop solar installation design

⑥ Results

• Reduced dependence on unstable grid electricity
• 80% Less Diesel Generator Use 
• Maximized rooftop solar energy generation efficiency
• 40% Lower Operating Costs 
• Enhanced hotel energy sustainability and operational stability

The project successfully provided the hotel with a stable, efficient, and flexible off grid solar battery system solution for daily operation and backup energy support.

Our C&I solar system uses German 5S production technology and intelligent generator control, enabling efficient and prolonged operation.

FAQ: Off Grid Solar Battery System for Hotels

❓1. What is an off grid solar battery system?

An off grid solar battery system combines solar panels and battery storage to generate and store electricity independently, reducing reliance on utility grid power.

❓2. Why do hotels need off grid solar battery systems?

Hotels require stable electricity for lighting, air conditioning, and guest services. Solar battery systems provide backup power during outages and help reduce electricity costs.

❓3. Can an off grid solar battery system work with the utility grid?

Yes. Hybrid systems can combine solar energy, battery storage, and utility grid power to ensure stable and continuous electricity supply.

❓4. What are the benefits of solar battery storage for hotels?

• Stable backup power
• Lower electricity bills
• Reduced grid dependence
• Better energy efficiency
• Improved guest comfort

❓5. How much battery storage is needed for a hotel?

Battery size depends on the hotel’s electricity consumption and backup requirements. In this project, a 153.6kWh lithium battery system was installed.

❓6. What happens during a power outage?

The battery system automatically supplies backup power, ensuring uninterrupted hotel operation during outages.

❓7. Can rooftop space limitations affect solar system performance?

Yes. Proper system design and optimization are important to maximize energy generation within limited rooftop space.

Looking for a reliable off grid solar battery system for your hotel or commercial project?

Contact Tanfon today to get:

• Free solar system design
• Customized quotation
• ROI analysis
• Professional engineering support

One-stop solutions with localized technical training and competitive factory prices,help you maximize solar system value at minimum cost.