Generators

About Generators

Portable generators deliver reliable electrical power wherever mains supply is unavailable, making them essential equipment for tradespeople on remote sites, outdoor events, and emergency backup situations. MyToolShed.co.uk stocks a comprehensive range of petrol and diesel generators from trusted brands including Draper and Sealey, with power outputs from compact 700W inverter units through to robust 7kVa models capable of running multiple heavy-duty tools simultaneously.

Modern generators come in two main types: conventional open-frame models offering economical power for robust trade equipment, and inverter generators that produce cleaner, more stable electricity suitable for sensitive electronics whilst running significantly quieter. All generators at MyToolShed meet UK electrical standards and deliver reliable 240V power compatible with standard British plugs and equipment, engineered to perform in all weather conditions.

Applications

Generators provide portable power solutions across numerous trades and situations:

• Construction and Building: Powering tools and equipment on new-build sites without mains electricity connection
• Groundworks and Civil Engineering: Running heavy machinery on remote infrastructure projects and roadworks
• Electrical Contractors: Testing installations and providing temporary power during rewiring projects
• Landscape Gardening: Operating power tools, pressure washers and lighting in gardens without outdoor sockets
• Events Industry: Supplying power for outdoor festivals, markets and mobile catering units
• Agriculture: Powering equipment in fields and outbuildings far from the farmhouse
• Emergency Backup: Maintaining power during blackouts for homes and businesses
• Mobile Businesses: Food trucks, market traders and mobile repair services requiring portable power
• Camping and Leisure: Running appliances and charging devices during outdoor activities

Choosing The Right Generators

Power Output: Calculate the total wattage of equipment you'll run simultaneously, then add 20-30% for safety margin and startup surges. A 2kVa generator suits single power tools, whilst 4-6kVa models handle multiple tools or larger equipment like compressors and concrete mixers.

Generator Type: Inverter generators produce cleaner power for sensitive electronics, run quieter (typically 50-60dB versus 70-80dB), and offer better fuel efficiency. Traditional open-frame generators are more economical for heavy-duty trade use where noise is less critical and robust power delivery matters most.

Fuel Choice: Petrol generators are lighter, quieter and more affordable for occasional use and portable applications. Diesel generators deliver superior fuel efficiency, longer runtime and greater durability for continuous commercial site work, though they're heavier and noisier.

Portability: Consider weight and transportation. Units under 20kg are genuinely portable for one person, whilst larger models benefit from wheel kits. MyToolShed.co.uk stocks generators with various mobility solutions to suit different site requirements.

Runtime: Larger fuel tanks and efficient inverter technology can provide 8-10 hours at partial load, whilst smaller units may require refuelling every 3-4 hours under heavy use. Match tank capacity to your typical working patterns.

Safety Information

Carbon Monoxide Warning: Never operate generators indoors, in enclosed spaces, or within 5 metres of buildings. Position in well-ventilated outdoor areas downwind of occupied spaces – carbon monoxide is deadly, colourless and odourless.

Electrical Safety: Use an RCD (residual current device) when powering equipment, particularly on construction sites where HSE regulations apply. Ensure proper earthing, never overload beyond rated capacity, and allow cooling before refuelling.

Maintenance: Check oil levels before each use, clean air filters regularly, and follow the manufacturer's service schedule to ensure safe, reliable operation and prevent carbon monoxide buildup.

Frequently Asked Questions

What size generator do I need for power tools?

For a single power tool, a 2-2.5kVa generator typically suffices for most applications including circular saws, drills and angle grinders. Running multiple tools simultaneously or larger equipment like mixers requires 4kVa or higher. Always check tool wattage ratings and remember startup power draw can be 2-3 times the running wattage.

What's the difference between inverter and standard generators?

Inverter generators produce cleaner, more stable electricity suitable for sensitive electronics, run significantly quieter, and offer better fuel efficiency by adjusting engine speed to demand. Standard open-frame generators are more affordable and provide more power for the money, ideal for robust trade tools that don't require ultra-stable power supply.

How long will a generator run on one tank?

Runtime varies by tank size, engine efficiency and load. A typical 2kVa inverter generator runs 6-8 hours at 25% load, reducing to 3-4 hours at full load. Larger conventional generators with bigger tanks can run 8-10 hours at half load, whilst diesel generators generally offer longer runtimes than equivalent petrol models.