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GES Power Ltd

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UK Standby power specialists, everything you need to maintain your powered world.

25/09/2026

Before we quote a generator we do a Residential Load Assessment — not guess from the main fuse. Why? Because the right generator size depends on what you want to keep running during an outage (heat pump, freezer, lights, boiler, etc.). Our approach prevents undersized or oversized systems and saves you money and hassle. Read the full explanation: https://wix.to/HejWtBR

A lot of homeowners are quoted a generator from one number: the main fuse. 60 A, 80 A, 100 A — pick a kVA that “covers the supply” and hope.That is how you buy a set that is too small for the heat pump and the freezer starting together, or far too big for a house that only needed lights, the b...

24/09/2026

Think 12.6 V on a multimeter means your generator battery is healthy? Think again. A single voltage reading only shows surface charge — not the battery’s true ability to start an engine. Our latest blog explains why a starter click at 2 a.m. is more common than you think, and what proper battery checks actually look like. Read more: https://wix.to/TZnCtIR

Most generator “no-starts” we see are not engines. They are batteries.Someone has already been there with a multimeter. They have written 12.6 V or 25 V in the book and signed the set off. Then the mains fails at 2 a.m. and the starter clicks once.A voltage reading is not a battery test.What a m...

23/09/2026

If your generator is roof-mounted, don’t risk draping cables through the building — fit a loadbank connection point. A weekly no-load run only proves the engine turns; a proper loadbank test proves the set will carry the building under real kilowatts. Read our quick guide to making rooftop generator maintenance safe and effective. https://wix.to/LlDmI6J

A weekly run with no load proves the engine turns. It does not prove the set will carry the building.That is what a loadbank test is for. You put real kilowatts on the alternator so the engine, the cooling, the AVR and the exhaust all work as they will on the night the mains fails. Wet stacking, lig...

22/09/2026

When EV chargers arrive, sometimes even a trusty generator needs to move house. Read about the gentle logistical ballet that got one unit shifted across a residential car park — no slapstick, just good planning. Read more: https://wix.to/0tBK6jx

If the Chuckle Brothers had gone into standby power instead of slapstick, the catchphrase would still have been the same.To me. To you.That was this week’s job, minus the ladder and the “oh dear, oh dear.”A generator had been sat in the car park of a residential development for years. Doing it...

21/09/2026

How do you get an 88 kVA Cat generator into central London basements where neighbours don’t want noise and life-safety loads must run? Our latest blog walks through the challenges — tight basements, air/heat/exhaust routing, and making a Cat DE88-class C4.4 set work for sprinklers, smoke control and lifts. Read the full case study and lessons learned. https://wix.to/68WRBGc &E

Tower Bridge Road is not a trading estate. It is central London: tight basements, neighbours who do not want a generator, and a life safety set that still has to start when the mains fails.The job was a Caterpillar 88 kVA standby generator — a Cat DE88-class C4.4 set — for life safety on a new d...

19/09/2026

We weren’t asked for a standard generator package — we were asked to remove old chimneys, design and get approval for replacements, crane two new stacks into position, and make good the roof on a live Thames Water site right next to the Greenwich ferry. No second chances. Read the full behind‑the‑scenes story and how our chimney expertise got us the job: https://wix.to/zi9WfLJ

We were not asked to quote a standard generator package. We were asked to take old chimneys off the roof of a Thames Water waste treatment plant next to the Greenwich ferry, design the replacements, get the scheme approved, crane two new stacks into position, and make the roof good again.That invita...

18/09/2026

Built in Britain. Powered by Perkins. Ready when the grid isn’t. Discover why a locally built generator from GES Power Ltd in Chesterfield gives you reliability, faster lead times and long-term support you can trust. Read the full story: https://wix.to/YmoqvKy

If the lights go out, you do not want a generator that was bolted together on the other side of the world, sat on a dock for six weeks, and then sold with a smile and a vague warranty. You want a set that was built here, with a British Perkins engine at the heart of it, a sensible lead time, and a t...

17/09/2026

When the mains fail in the West End, silence matters. Learn how we turned a noisy rooftop generator into a whisper-quiet standby set for an office next to the Dominion Theatre — not with a catalogue enclosure but with a purpose-built drop-over canopy and careful load-banking. Read the full case study and see the before/after: https://wix.to/S0gga4b

An office block near the Dominion Theatre does not get a second chance on noise. When the West End is full and the mains goes down, the last thing the building needs is a generator that sounds like a wagon parked on the roof. The brief was standby power with hush — a set that would start, take the...

16/09/2026

First, the structure — not the generator. Discover how careful structural engineering kept a historic roof safe while supporting a heavy plant set. Read the full story: https://wix.to/JR202o4

Why it matters: proper load calculations, custom I-beam frames, and attention to detail make the difference between a job that’s risky and one done right.

You do not land several tonnes of plant on a historic roof and hope the joists agree.A structural engineer was brought in to calculate the loads: the wet weight of the set, the frame, fuel in the belly tank, access steel, wind, and point loads through the existing structure. Only when those numbers....

11/09/2026

When the plant room is built first, things rarely go as planned. Read how we installed a 330 kVA standby generator in a Plaistow building despite a 2.7m-high access opening and no crane path — creative rigging, careful planning and skilled installation made it happen. Read the full case study: https://wix.to/bQyFrL4

On paper it was straightforward. A 330 kVA standby generator for a building in Plaistow, East London. Concrete structure already up. Dedicated generator room already formed. An opening into that room of 2.5 m wide by 2.5 m high. Simple, you would think.It was not.The generator room was not at ground...

Address

Unit 2 Cavendish Business Park, Whitting Valley, Road
Chesterfield
S419EY

Opening Hours

Monday	8am - 5pm
Tuesday	8am - 5pm
Wednesday	8am - 5pm
Thursday	8am - 5pm
Friday	8am - 5pm
Saturday	8am - 5pm
Sunday	8am - 5pm

Telephone

01246912014

Website

http://www.generator-man.co.uk/

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