What size generator do I need?
Add your appliances, running watts and one realistic starting event to estimate the continuous and starting output a portable generator must deliver.
What size generator do I need?
Add your appliances, running watts and one realistic starting event to estimate the continuous and starting output a portable generator must deliver.
The method, step by step
- 01Running watts
List every appliance you intend to run at the same time and add their running watts.
- 02Continuous and maximum output
Size from ordinary continuous output plus the largest realistic starting event. Maximum (peak) output is temporary and must never be treated as continuous capacity.
- 03United Kingdom electrical execution
UK planning uses the 230V/50Hz execution with the correct outlet panel. A travel adaptor cannot make a 120V generator suitable for UK use.
What that means for this edition
Fridges, pumps, tools and compressors also have a separate starting demand that can briefly exceed the running figure.
Running watts
List every appliance you intend to run at the same time and add their running watts. Fridges, pumps, tools and compressors also have a separate starting demand that can briefly exceed the running figure.
Continuous and maximum output
Size from ordinary continuous output plus the largest realistic starting event. Maximum (peak) output is temporary and must never be treated as continuous capacity.
United Kingdom electrical execution
UK planning uses the 230V/50Hz execution with the correct outlet panel. A travel adaptor cannot make a 120V generator suitable for UK use.
Safety before connection
Run a fuelled generator outdoors, well away from doors, windows and vents. Never backfeed a UK ring final circuit or consumer unit; any fixed connection needs a competent electrician and approved transfer equipment.
United Kingdom market status
The record above is shared technical content from the international edition, not proof of a United Kingdom retail offer. For the equipment planned with this tool, confirm the exact 230V/50Hz Type G execution, supplied mains lead and socket layout, model suffix, UK certification, warranty and local support before purchase. No UK price in pounds sterling, stock, retailer, warranty or affiliate offer is verified yet, and no buying link is active.
UK status: commerce closed. No verified retailer, price, stock, warranty or affiliate offer is active until final technical and native editorial review.