Remote campsites and outdoor facilities often lack reliable access to the public grid, making stable and clean power supply a major challenge. A PV-storage microgrid with grid-forming capabilities can provide autonomous power while reducing reliance on conventional diesel generation.
Building an Autonomous Power Supply System for Remote Locations Using Grid-Forming Energy Storage
Against the backdrop of the rapid development of outdoor tourism and eco-campsites in Europe, an increasing number of areas far from urban power grids are exploring clean energy power supply models.
However, in scenarios such as remote campsites and outdoor facilities, traditional energy supply remains heavily reliant on diesel generators. While diesel generators can provide stable power, long-term operation presents challenges such as high fuel transportation costs, complex equipment maintenance, and environmental noise pollution.
At the same time, solar energy is inherently intermittent and cannot meet round-the-clock power demands on its own. Therefore, how to achieve a stable transition from traditional fuel-based power to renewable energy has become the key to implementing off-grid solutions.
For remote, off-grid locations, YUNT offers a comprehensive, all-photovoltaic-and-storage off-grid microgrid solution. Through the coordinated operation of grid-forming power conversion system (PCS), photovoltaic systems, energy storage systems, and a smart energy management platform, we help customers build a stable, autonomous, and efficient clean energy power supply system.
Scenario Requirements: Addressing the Challenge of Stable Power Supply in Off-Grid Environments
Off-grid scenarios, such as wilderness campsites, typically present the following challenges:
- Location far from the public grid, resulting in high connection costs;
- High reliance on traditional diesel power;
- Significant weather-related fluctuations in PV output;
- Continuous power supply is required for loads such as lodging, catering, and lighting.
- The project must simultaneously meet the following requirements:
- Stable, round-the-clock power supply;
- High utilization of renewable energy;
- Reduced diesel engine operating frequency;
- Adaptability to complex outdoor environments.
Therefore, the system not only requires energy storage capacity but must also be capable of autonomously establishing a power grid and ensuring stable load operation.
System Solution: Building a Pure Solar-Storage Off-Grid Microgrid System
YUNT provides an integrated solution—ranging from system design and equipment integration to commissioning and operation—tailored to the camp’s energy needs.
The project features a 3 MW photovoltaic system, configured with:
- a 125 kW/258 kWh energy storage system;
- VSG (Virtual Synchronous Generator) grid-connected PCS;
- PV MPPT control equipment;
- Off-grid power distribution system;
- EMS energy management platform.
Through intelligent coordination among PV, energy storage, and loads, an independently operating clean energy microgrid is established.
The system employs a “PV-first, energy storage regulation” operating strategy:
During the day when PV generation is sufficient:
- PV power is prioritized to supply the camp’s loads;
- Excess electricity is stored in the energy storage system.
- At night or under low-light conditions:
- The energy storage system continues to supply power;
- smoothing out fluctuations in renewable energy.
In a fully off-grid state:
- The PCSautonomously generates voltage and frequency;
- Supports the stable operation of various types of loads;
- Ensures continuous power supply to critical camp facilities.
Leveraging VSG grid-forming control technology, the system can create a stable microgrid environment without relying on an external grid reference, meeting the autonomous power supply needs of remote locations.
Project Value: Driving the Transition to Clean Energy in Europe’s Outdoor Sector
Through the integration of a purely solar-storage off-grid microgrid, the project helps the camp break free from its reliance on traditional diesel power and achieve self-sufficient energy supply using renewable energy.
The solution not only reduces the burden of fuel transportation and maintenance but also improves the outdoor operating environment and enhances the long-term operational reliability of the energy system.
This project demonstrates YUNT’s comprehensive capabilities in off-grid microgrids, grid-forming control, and energy delivery in complex environments, providing a replicable clean energy storage solution for remote areas, eco-campsites, and outdoor facilities across Europe.
