38.1°C: What Yesterday’s Record Heat Reminds Us About Power Resilience

Yesterday the UK recorded 38.1°C at Kew Gardens – officially the hottest day of the year so far and the fifth hottest day on record. It marked the peak of the country’s fifth heatwave of what is already shaping up to be an exceptional summer.

While many of us felt the discomfort, businesses felt something else: pressure.

Extreme heat drives up electricity demand as air conditioning, refrigeration and cooling systems work harder than usual. At the same time, high temperatures can stress the national grid and increase the risk of voltage fluctuations or localised outages. For food processors, cold stores, manufacturers and any operation that relies on continuous power, these conditions create a perfect storm.

Image - BBC News (Getty Images)

Heatwaves Don’t Just Raise Temperatures – They Raise Risk

During prolonged hot spells we regularly see:

• Higher peak demand on the grid

• Increased likelihood of brown-outs or short interruptions

• Greater strain on existing standby systems

• Cooling and refrigeration equipment working at maximum capacity

If your automatic transfer switch is prone to nuisance tripping, or your generator isn’t correctly sized and maintained, a brief dip in supply can cascade into lost production, spoiled stock or a full line reset.

Reliability Matters Most When Conditions Are Extreme

At GES Power we design and supply systems that are built for real-world conditions – not just ideal ones. Whether it’s a high-specification motorised ATS panel that stays stable during voltage fluctuations, a robust standby generator ready to take the load, or rapid emergency support when the unexpected happens, the goal is the same: keep your operation running when the weather (and the grid) are under pressure.

Yesterday’s record temperature is a clear reminder that extreme weather is no longer rare. Businesses that treat standby power as an afterthought are the ones most exposed when the next heatwave, storm or grid event arrives.

Stay Ahead of the Heat

If your current power resilience arrangements haven’t been reviewed recently, now is a good time. We can help with:

• Site surveys and load assessments

• High-quality ATS panels designed to minimise nuisance tripping

• Correctly specified generators

• Maintenance and emergency response packages

Extreme heat will keep returning. Reliable power doesn’t have to be a worry.

Call us on 01246 380525 Email hello@generator-man.co.uk

GES Power Ltd – Keeping British businesses powered, whatever the weather throws at us.