Please contact your Account Manager directly or use the details below to contact us with your enquiry.


2017 Christmas opening hours

Friday 22nd December - 8:30am - 1:00pm

Monday 25th & Tuesday 26th December - closed

Wednesday 27th & Thursday 28th December - 8:30am - 5:30pm

Friday 29th December - 8:30am - 4:00pm

Monday 1st January - closed


Phone enquiries

To speak with someone about your enquiry, use the following phone numbers:

Business Electricity (supply) enquiries: +44 (0)1473 234150

Power Purchase (generation) enquiries: +44 (0)1473 234157

General enquiries: +44 (0)20 7448 0900

Customer enquiries: +44 (0)1473 234 100


Email enquiries

For general enquiries, please use the form at the bottom of this page. For all other enquiries, choose an option below: 

Existing customer enquiries

Business Electricity sales enquiries

Power Purchase sales enquries

Careers enquiries

Office locations

SmartestEnergy has offices in the following locations:

London office - Dashwood House

London office - Dawson House (for Asset Optimisation team)

Ipswich office

Glasgow office

Complaints procedure

Our aim is to give you excellent customer service, but we acknowledge that sometimes we might get it wrong. Please let us know as soon as you have a complaint so we can work with you to put it right quickly.

See our complaints procedure

Report energy theft

Tampering with electricity meters can be dangerous. If you see or suspect energy theft, please report it to Stay Energy Safe by calling 0800 023 2777 or using their online form.

> Read more about Stay Energy Safe here

Enquiry form