It’s one of the most common questions we’ve received at shows, in meetings, and through our inbox:
“What happens when the sun doesn’t shine?”
It’s a fair question – and one that comes up every time solar-powered welfare is mentioned. After all, site welfare isn’t something that can stop working because of the weather.
Quick Answer
Even when the sun doesn’t shine, our ecowelfare units keep running.
Each one is designed around a solar-first, dual battery system that stores energy captured from daylight – not just direct sun.
If light levels remain low for an extended period, a low-emission HVO biofuel backup automatically activates to maintain full power.
That means uninterrupted heating, lighting, hand wash, and dryers – every single day of the year.
How Our Solar Welfare Units Work
Every euroloo eco welfare unit is built around a 100% solar-first design, where large roof-mounted panels capture daylight and feed it into a high-capacity dual battery system.
This system delivers consistent power for all onboard facilities, even through short winter days or cloudy periods.
By prioritising solar as the main energy source, we remove the need for constant refuelling or manual power management – reducing both carbon output and site disruption.
Automatic Low-Emission Backup That Rarely Activates
In rare cases of prolonged low light or unusually high power demand, an integrated HVO biofuel backup activates automatically.
This system is there for resilience, not reliance – it only runs when needed, ensuring complete reliability without compromising sustainability.
By using HVO (Hydrotreated Vegetable Oil) rather than diesel, emissions are reduced by up to 90%, helping sites hit environmental targets while maintaining full welfare performance.
Real Sustainability in Practice
For us, sustainability isn’t a label – it’s a design principle.
Every decision, from solar capacity and battery specification to HVO selection and logistics, is engineered to cut emissions while maintaining operational reliability.
Our approach combines:
- Solar-first design for clean daily operation
- Dual battery storage for continuous uptime
- Low-emission HVO backup for resilience in rare conditions
- Efficient transport and servicing via in-house HVO-fuelled vehicles
It’s how we ensure sustainability that works in practice, not just on paper.
Because Sustainability Only Works If It Works for You
Every eco welfare unit is proven on live infrastructure and construction sites across England, from urban regeneration projects to remote infrastructure works.
Whether sunlight is plentiful or scarce, teams can rely on constant power and comfort, all while reducing carbon emissions and fuel use.
Because sustainability only works if it works for you.
Discover the Full ecowelfare Range
From compact towable units to larger site setups, every ecowelfare system is built with performance, comfort, and sustainability at its core.
FAQs
What happens when there’s no sunlight for solar welfare units?
Even in low light, ecowelfare units run on stored battery power. If conditions stay dark for long periods, a low-emission HVO biofuel backup activates automatically to maintain full functionality.
Are ecowelfare units completely solar-powered?
Yes – they operate on a solar-first, dual battery system. The HVO backup only activates in rare conditions, ensuring reliability without constant fuel use.
How sustainable is HVO compared to diesel?
HVO can cut lifecycle CO₂ emissions by up to 90% versus conventional diesel, making it the ideal backup solution for sustainable site welfare.
