This article details the repair and reinstallation of a 13kW off-grid solar and wind power system following significant flood damage. The system, featuring a 15kW solar inverter, a Solark unit, and a wind turbine, underwent a complete overhaul. Damaged components, primarily the battery bank and associated wiring, were replaced and strategically relocated to prevent future water damage. The repair involved not only restoring functionality but also enhancing safety and expandability. Upgrades included improved wiring, conduit installation, and the addition of EMP protection to key components.The project highlights the expertise of Off-Grid Contracting in handling complex off-grid system repairs and installations. The article showcases the use of high-quality, durable components such as Quantum Power Innovation pure lead carbon batteries and the implementation of robust safety measures, including a new fuse block and strategically placed fire extinguisher. The final installation is praised for its clean, organized design and the inclusion of features designed for future expansion and seamless integration with a generator for backup power.
Pros And Cons
- 100% capacity shown on unit
- Wi-Fi enabled (app control)
- DC cables, PV for MPPT, generator, load, and grid support inputs
- UL listed (multiple listings)
- Multiple battery cable inputs (can pull 12K constant from battery bank)
- Internal breaker
- Automatic generator start
- Best batteries (reviewer opinion)
- Pure lead carbon
- EMP resistant
Read more: InnerVenue's Forever Battery: Revolutionizing Renewable Energy Storage
System Overview: Damage & Repair
This off-grid system experienced significant flood damage, affecting the battery bank and other components. The repair involved a comprehensive cleanup of the flooded area and replacement of damaged parts. The batteries were relocated to a safer, higher location to prevent future water damage.
A Midnight Classic 150 charge controller, protecting the solar array on the roof, was repaired and enhanced with EMP protection. The Solark unit and wind turbine control switch were also addressed; the latter requiring a separate trip for parts replacement.
System Components & Installation
The system incorporates a 15kW solar inverter, a Solark unit, and a wind turbine. The existing wiring and conduit were upgraded to improve organization and safety. The generator will be integrated with a two-wire start system for automatic backup power when battery levels are low.
The installation included meticulous work on the fuse block and battery bank, ensuring proper protection and safety. PV runs were installed safely and efficiently, prioritizing worker safety and preventing high-voltage exposure. The roof-mounted solar array was efficiently racked and secured using UFO Clips.
Inverter Features & UL Listings
The 15kW inverter boasts extensive UL listings, indicating its safety and compliance with various industry standards. It's designed to handle high currents, with the ability to draw 12kW consistently from the battery bank (though fused for safety).
Key safety features include an internal breaker and multiple battery cable inputs, enhancing system reliability and flexibility. The automatic generator start feature integrates seamlessly with the system, ensuring reliable backup power when needed.
Battery Bank & Future Expansion
The system utilizes four battery packs of Quantum Power Innovation pure lead carbon batteries, known for their durability and resistance to EMP. The elevated placement of the battery bank minimizes the risk of future flood damage.
The system is designed for future expansion; more battery packs can be added as needed. The goal was to create a robust and easily expandable off-grid solution.
Final System & Conclusion
The completed system is clean, organized, and well-protected. All wiring is enclosed in conduits and waterproof boxes to safeguard against future flooding. A fire extinguisher was installed for added safety. The system includes a manual generator start, with the auto-start to be added later.
The project showcases the expertise of Off-Grid Contracting in efficient and safe off-grid system installation and repair. The use of high-quality components like the Quantum Power Innovation pure lead carbon batteries ensures longevity and reliability. The system’s modular design allows for easy expansion as the customer’s needs evolve.