Island Energy Storage Solution
In remote or island areas with insufficient and unstable grid coverage, diesel generators are often used. However, their maintenance is challenging, affecting work and daily life, and they cause noise, pollution, and unstable power quality. While solar power is eco-friendly, it alone cannot meet all power needs. The project features a hybrid solar-diesel system with 1.93MWh of energy storage, 1MW power capacity, and a 1MW MPPT solar system, along with a diesel generator. This system combines the benefits of both sources, offering automatic voltage regulation and ensuring continuous power supply by switching to diesel when solar power is insufficient, while storing excess energy in batteries.
Project Overview
Available Only Through Renon Power
Geographical Location & Environmental Factors
Power Supply Challenges on Isolated Islands
Isolated islands face several power supply challenges, including insufficient and unstable grid coverage, which often necessitates reliance on diesel generators. However, the remote locations make it difficult to promptly repair malfunctioning generators, significantly impacting work and daily life. Additionally, diesel generators generate noise and pollution, and their unstable power quality can adversely affect the load. While solar power is environmentally friendly, it alone cannot fully meet the actual power demands.
Electricity Fluctuations
Providing Stable and Reliable Power for Islands
In the event of a power outage or off-grid situation, the solar photovoltaic system operates alongside a diesel generator. The diesel generator must remain online and its minimum load power set. The system adjusts automatically, with the diesel generator responding to sudden load changes and communication between controllers managing the overall operation.
Photovoltaic System
Island Solar Photovoltaic Power Generation System
In islands or remote areas with insufficient and unstable grid coverage, solar photovoltaic systems are a cost-effective and practical power solution. However, they generally need to be paired with energy storage and backup power systems to ensure reliable electricity supply.
Diesel Generator Integration
Reliable Backup Power for Extreme Conditions
Implement two integration options for the diesel generator. Option 1 involves providing a dedicated interface for the diesel generator. Option 2 involves installing an ATS (Automatic Transfer Switch) in the project s generator room. This setup allows the diesel generator to serve as a final backup power source when both the grid and solar energy storage systems cannot meet the power demand. This design ensures a dependable power supply for the island during extreme conditions, enhancing the overall reliability of the system.
Comprehensive Strategy
Smart Management and Proactive Monitoring for Optimal Efficiency
The system features intelligent scheduling to optimize the coordination between solar and energy storage, maximizing economic benefits. It adheres strictly to local fire and safety standards to ensure the safety of both personnel and property under all conditions. Additionally, a remote monitoring platform is established for regular performance checks, allowing for timely detection and resolution of potential issues, thus ensuring the system s long-term stable operation.
Project Summary
Smart Storage, Smarter Energy
This project improves power stability and reliability by combining solar and diesel energy sources. It reduces downtime with automatic voltage regulation and diesel backup, cuts noise and pollution by lowering diesel use, and stores excess solar energy for use during low-generation periods. Overall, it enhances cost efficiency and quality of life for residents in remote or island areas.
Core Component Selection Instructions
Renon Power Specialization
Battery Capacity
Selection: 1.93 MWh Battery Capacity
Rationale: A 1.9MWh battery capacity is selected based on the island s daily power consumption and emergency backup needs. This capacity covers off-peak electricity demands and provides several hours to half a day of continuous power during outages, ensuring critical operations remain uninterrupted.
Benefits: This setup supports a reliable power supply during emergencies and non-peak periods, enhancing the island’s resilience.
Advantage: The 1.93 MWh capacity ensures that the island can maintain critical functions without solely relying on the traditional grid, thereby improving energy security and reliability.
PCS Power Configuration
Selection: 1 MW PCS Power Configuration
Rationale: The PCS (bidirectional converter) is configured with a 1 MW integrated cabinet, designed to enable seamless grid and off-grid switching. It receives dispatch commands from the Energy Management System (EMS) and provides fast response capabilities for charging and discharging in self-consumption mode, island protection, and high low voltage ride-through capabilities.
Benefits: The 1 MW PCS ensures rapid and efficient power conversion, enhancing energy management flexibility and operational stability.
PV System Power Configuration
Selection: 1 MW Solar Inverter Configuration
Rationale: The maximum configuration of a 1 MW solar inverter, using an AC-coupling solution, is based on the island s sunlight intensity and available rooftop area. With an expected 5 hours of sunlight per day and an 80% solar efficiency rate, the system can generate approximately 4 MWh daily. This setup efficiently harnesses solar energy, reducing reliance on the grid and charging batteries during the day for nighttime use.
Benefits: The 1 MW solar power capacity maximizes the use of renewable resources, significantly decreasing grid dependency and operational costs.
Advantage: This configuration ensures effective solar energy utilization, optimizing the island s energy independence and sustainability.
The advanced Battery Management System (BMS) monitors voltage, current, and temperature to ensure optimal performance and longevity. Predictive algorithms provide early warnings of battery aging for proactive maintenance.
Thermal Management & Safety
A high-efficiency cooling system with optimized airflow maintains safe battery temperatures in extreme heat, while smoke detectors and heptafluoropropane fire suppression ensure comprehensive safety.
Flexible Energy Management
The system enables seamless integration with photovoltaic panels and diesel generators, supporting versatile energy switching for enhanced stability and reliability in power supply.
System Advantages
Optimized Configuration
The 500kW photovoltaic system paired with 1.9MWh storage is designed based on the store s actual energy needs and local sunlight conditions, avoiding unnecessary costs from over configuration.
Flexibility and Reliability
The 1MW PCS, photovoltaic inverter, and STS module provide versatile functions such as charging, discharging, and grid interaction. This setup mitigates the impact of diesel generator integration and improves power quality, ensuring high system reliability and rapid emergency response.
Cost-Effectiveness and Sustainability
The combination of photovoltaic and energy storage reduces operational costs and carbon footprint, aligning with green energy trends.
