Project Overview

This commercial solar and storage microgrid was developed for a remote mining operation in Antofagasta, Chile, to improve energy reliability and reduce dependence on diesel generation. The hybrid energy system combines solar photovoltaic (PV) generation with battery energy storage to support continuous mining operation during grid fluctuations and optimize daily energy consumption.

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Challenges

The mining operation faced several energy-related challenges:

• Unstable and limited grid access in a remote location
• High fuel transportation and diesel consumption costs
• Frequent maintenance requirements for diesel generators
• Need for uninterrupted 24/7 power supply for critical mining equipment

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Solution

A 30 MW photovoltaic system utilizing high-efficiency 700W TOPCon solar panels was integrated with an advanced battery energy storage system and existing diesel generators. The microgrid intelligently manages energy generation and consumption, prioritizing solar power during daylight hours while storing excess energy for nighttime operation.
The hybrid configuration minimizes diesel generator runtime, ensuring continuous power availability while significantly improving overall energy efficiency.

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Results & Benefits

Reliable Power Supply
Provides stable and uninterrupted electricity for continuous mining operations.

Reduced Diesel Consumption
Significantly lowers fuel usage, transportation expenses, and generator operating hours.

Lower Operating Costs
Reduces long-term energy costs and maintenance requirements.

Enhanced Sustainability
Decreases carbon emissions and supports the mining facility's environmental objectives.

High-Efficiency Solar Generation
700W TOPCon solar modules deliver excellent energy yield and performance under harsh environmental conditions.

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Specifying a Solar-Battery-Diesel Package for Remote Mines

This solar battery diesel hybrid system combines a 30MW PV array using 700W TOPCon modules with battery storage and existing generators. For EPC contractors working on a remote mining project, the commercial microgrid system should be assessed against the production load, generator operating limits and the required reserve strategy.

Review our commercial solar and storage solutions and solar module products when preparing the equipment schedule. Industrial solar system equipment supply should include clear interfaces, commissioning responsibilities and service arrangements. Expected diesel displacement depends on the site's solar resource, load profile and dispatch strategy, so it needs project-specific evaluation.

Planning a similar installation? Share your site details and equipment requirements with Toyon Energy to discuss a project-specific supply proposal.

Project Outcome

The completed commercial microgrid solution enables the Chilean mining facility to achieve dependable, cost-effective, and sustainable power generation. By combining solar energy, battery storage, and diesel backup, the system ensures round-the-clock energy security while substantially reducing dependence on fossil fuels.