Powering the Green Gathering with Solar: ESS Power Store’s 20 kWh and 30 kWh Units in Action

05/09/2025

When people think of festivals, they often picture stages, music, and community but rarely the energy that makes it all possible. Traditionally, diesel generators have provided that power, leaving a heavy environmental footprint. At this year’s Green Gathering, however, the story was different. Thanks to ESS Power Store, the event ran key areas using clean, renewable power from two RoyPow Power Store units: one 20 kWh system and one 30 kWh system, both charged entirely by solar PV.

This installation demonstrated not only the reliability of solar and battery storage at scale, but also the growing appetite for off-grid clean energy solutions in events and beyond.

Why the Green Gathering Needed Clean Energy

The Green Gathering is a pioneering UK festival with a reputation for leading the way in sustainability and low-impact living. Organisers are committed to cutting fossil fuels and proving that large gatherings can thrive without diesel generators.

For 2025, they wanted to take a step further and integrate high-capacity solar battery storage to support power-hungry festival infrastructure. That’s where ESS Power Store came in delivering dependable, transportable battery units to match the scale of the challenge.

The Role of the RoyPow Power Store Units

At the event, ESS Power Store supplied:

1 x 20 kWh RoyPow Power Store
1 x 30 kWh RoyPow Power Store

These units were connected to a solar PV charging array, ensuring that all the energy stored was generated directly from the sun. No fossil fuels, no emissions just clean, renewable electricity.

Each Power Store system provided a stable power supply to critical festival infrastructure, including lighting, catering areas, and community hubs. The combination of the two units gave organisers 50 kWh of reliable capacity, with the flexibility to expand or reconfigure depending on demand.

Solar-Powered Battery Storage in Practice

Unlike traditional diesel generators, the RoyPow Power Store units offer:

  • Silent operation – no noisy engines disrupting music or community spaces
  • Zero emissions – completely clean energy from solar charging
  • Reliability – consistent supply for lighting, refrigeration, and PA systems
  • Scalability – with modular units from 10 kWh upwards, systems can be scaled to suit any event

The systems recharged during the day from dedicated solar PV arrays, ensuring they were ready to power evening activities and overnight needs. The Green Gathering became a real-world demonstration of solar battery storage at scale, proving how well it integrates with live event demands.

A Step Towards Fossil-Free Festivals

By switching to battery storage, the Green Gathering reduced its reliance on diesel, cutting carbon emissions and removing the air pollution and noise that typically come with generators. This not only benefits the environment, but also enhances the festival experience for attendees.

Events like the Green Gathering are paving the way for other festivals, construction sites, and community projects looking for off-grid clean energy solutions. What was once seen as a niche option is now becoming a reliable, cost-effective, and sustainable alternative.

Why Choose ESS Power Store?

At ESS Power Store, we specialise in portable, high-capacity battery systems designed for events, construction, and off-grid applications. Our range includes RoyPow Power Store units from 10 kWh to 30 kWh and beyond, with options to integrate directly with solar PV for a fully renewable solution.

By partnering with ESS Power Store, event organisers can:

  • Reduce carbon emissions and environmental impact
  • Eliminate the need for diesel generators
  • Provide a better, quieter experience for guests
  • Showcase a commitment to sustainability and innovation

The success of the Green Gathering highlights what’s possible when technology and vision come together.

Looking Ahead

The use of a 20 kWh and 30 kWh Power Store unit at the Green Gathering is just the beginning. As more festivals, businesses, and communities seek alternatives to diesel, ESS Power Store will continue to provide the tools for a fossil-free future.

Whether it’s powering a festival field, a construction site, or a remote community hub, solar battery storage is here, it works, and it’s ready to scale.

If you’re planning an event or project that needs clean, reliable power, get in touch with ESS Power Store today.