Smartest Energy: Tariffs, Login, Contact Info & Jobs

Smartest Energy is a business energy supplier which provides a variety of fixed and flexible gas and electricity plans to suit SMEs of varying sizes and budgets. Read on to find out about Smartest Energy’s tariffs, products and services, see how it rates with current customers and find contact information, login details and jobs with the supplier.

Smartest Energy in summary:

Who are Smartest Energy?

Smartest Energy was established in 2001 as an aggregator of independent generation projects and entered the UK supply market in 2008. Today it claims to be the leading purchaser of independent energy generation, counting Toyota Manufacturing UK, John Lewis Partnership and JLL among its customers.

Smartest Energy’s business supply division was previously known as Dual Energy and supplies electricity and gas to small and medium-sized enterprises. It offers fixed and variable contracts, renewable options, smart meters, and energy data access to help customers lower their consumption and costs. 

Smartest Energy jobs and careers

Interested in advancing your career with Smartest Energy? The supplier often has openings at its UK offices in London, Ipswich and Worthing, as well as international opportunities in Australia and the United States.

What type of jobs are available?

Smartest Energy offers a variety of career opportunities, such as positions in sales, finance, trading, IT and management. Visit the Smartest Energy jobs website to find out more. 

Smartest Energy customer reviews

We looked at Smartest Energy reviews online to see what real customers had to say about their supplier, both under its previous name of Dual Energy and in its current guise.

At the time of writing, Smartest Energy had received almost 500 reviews on consumer review site Trustpilot, achieving an average score of 4.3 out of a possible 5 stars. The majority of these Smartest Energy reviews were positive, with 70% rating the supplier as ‘Excellent’ - the highest possible score available on the site - and a further 6% rating it ‘Good’. The most common source of customer satisfaction appears to be its customer services team, with a number of its staff referenced by name throughout the positive Smartest Energy reviews on Trustpilot.

Of all the energy companies we have dealt with over the years, this is, by far, the easiest to deal with-- easy to speak directly with someone, prompt responses to queries, good selection of options and a friendly, helpful manner. Would recommend to anyone.

Mr M Macaskill, Trustpilot

In contrast, 2% of customers give it a ‘poor' rating, while another 20% score it the lowest possible rating of ‘bad’. The following were the most common causes of customer dissatisfaction in negative Smartest Energy reviews:

• Incorrect meter readings
• Hidden charges and admin fees
• Steep price increases
• Difficulty in transferring away from Smartest Energy to another supplier

I have a smart meter yet still they are taking estimate readings. Earlier in the year, my bill jumped from £300 a month to £900!! They said it was because they hadn't taken an actual reading. That's the whole point of a smart meter! Made me struggle financially. Will move as soon as my contract is up.

Gill Norval, Trustpilot

Perhaps unsurprisingly, given the number of negative Smartest Energy reviews left by its customers, Citizens Advice ranked the supplier 14th out of 17 business providers in its October to December 2020 performance report.

While Smartest Energy outperformed Scottish Power, it fell short of all the other Big Six energy suppliers, including British Gas, EON and Npower.

Smartest Energy tariffs

Smartest Energy offers a variety of electricity and gas tariffs to suit most small businesses. These include options to fix your energy prices for up to five years to protect against market volatility or instead follow the market and benefit from any price drops.

SmartFix (Gas and Electricity)

• Available on contract for 1, 2, 3 or 5 years.
• Fixed, competitive gas and electricity prices.
• Protection against market price uncertainty.
• Monthly Budget Plan payment (fixed Direct Debit).

SmartTracker (Gas and Electricity)

• Available on a 3-year contract only.
• Fixed gas and electricity prices for the first 12 months then reviewed against market prices every year.
• Price Promise Guarantee: if you find a lower price from another supplier during your yearly price review, Smartest Energy will match it.
• Monthly Budget Plan payment (fixed Direct Debit).

SmartPay (Electricity only)

• Smartest Energy’s prepay option, available on 1, 2 or 3-year contracts.
• Fixed electricity prices for up to 3 years.
• Available to small business with no or low credit scores, with no security deposit required.
• Top-up online, over the phone or by Direct Debit.

Deemed and Out of Contract Rates

Out of contract rates are usually imposed when a business’ energy contract expires without agreeing to a new tariff, while deemed rates are applied to business customers who move into a building where Smartest Energy is already the supplier.

With Smartest Energy, gas and electricity supplied to customers in either situation is charged at the supplier's standard tariff. You can find the rates for this in the table below.

Prices correct as of June 2021. Rates in the table above exclude Climate Change Levy, VAT and any other applicable taxes.

If you find yourself on deemed or out of contract rates, we recommend switching suppliers or agreeing to a new plan with Smartest Energy as soon as possible as these rates are far more expensive than many other options on the market. You can reach out to a Selectra business energy expert on 020 3318 3633 or request a free personalised quote simply by filling out a few details.

Additional products and services

1. Free smart meter

Smart meters can help your business save time and money by providing accurate billing and automatic readings. Smartest Energy offers free smart meter installation to all of its business electricity customers shortly after they join.

2. Budget plan payment

Smartest Energy’s budget plan payment allows customers to pay in fixed monthly instalments to spread the cost of electricity over the year. Equal payments are taken once a month by Direct Debit, with usage tracked by a smart meter. This service is available for electricity customers only.

3. Web Analyser service

Smartest Energy customers can use its Web Analyser service to view a detailed breakdown of energy consumption to help better understand their energy usage, reduce their carbon footprint and save money. Data is available in half-hourly intervals, with the option to create daily, weekly, or monthly reports to analyse usage across meters and sites.

Smartest Energy login

The SmartWeb Online portal allows customers to manage their account 24/7, no matter where they are. You can use your Smartest Energy login details to:

• Check your invoices
• View supply information
• Submit a meter reading
• View account statements.
• Make a payment
• Edit your contact information

How do I set up my SmartWeb online account?

1. Go to the Smartest Energy website and click ‘customer login’ in the top right-hand corner. This will take you to the Smartest Energy login page. 
2. Click ‘SmartWeb Online’ and select ‘register online’.
3. Fill in your 12-digit account number, title, name, email address and choose a password. If you can’t remember your account number, you can find it on a Smartest Energy invoice or in your email inbox by searching ‘Smartest Energy’.

Using your Smartest Energy login details to access the SmartWeb portal



Accessing your online account is simple once you’ve registered for the SmartWeb portal. Simply follow the steps below:

1. Visit the Smartest Energy website and click 'customer login' in the top right-hand corner of the page.
2. Next, enter your Smartest Energy login information, including your account number and password.
3. Click or tap the blue ‘Sign In’ button. Make sure you’ve ticked the box that says ‘remember login’ if you prefer to avoid having to enter your details again.

I can’t remember my Smartest Energy login password

Have you forgotten your Smartest Energy login credentials or password? We all forget things from time to time, so don't worry. Simply follow the same steps as above and click ‘Forgotten your password?’ on the Smartest Energy login screen to reset your password.

You will be redirected to a page where you can change your password. Enter your account number and click ‘submit’. Smartest Energy will then send you an email with instructions for changing your password.

If you’ve forgotten your account number, you will instead need to contact Smartest Energy directly using the information further down this page.

Does Smartest Energy have an app? At the time of writing, Smartest Energy does not offer an app version of its SmartWeb portal on either the Android or Apple platforms.

New Smartest Energy customers: submit a meter reading

Recently switched to Smartest Energy? You’ll need to provide your first meter reading manually, within five days of the provider taking on your energy supply. This allows Smartest Energy to start billing you correctly and enables your previous supplier to issue your final bill. If you’re an electricity customer, your meter readings will be taken automatically once a smart meter has been installed.

Submit a meter reading online

The easiest way to submit a meter reading is through the SmartWeb online portal, using your Smartest Energy login information. 

If you haven’t registered yet, you can do so by following the information above, under the heading ‘How do I set up my SmartWeb online account.

Submit your meter reading by phone

If you’d prefer to leave a meter reading over the phone, you can do so by calling Smartest Energy’s meter reading service on 0800 088 4581. Calls to this number are free and lines open 24/7. Don’t forget to have your account number and meter serial number to hand when calling.

Fuel mix

All energy suppliers are required by Ofgem to disclose their fuel mix, to show where their electricity comes from. This helps businesses make an informed decision about their energy choices.

While Smartest Energy claims to be the UK’s leading supplier of renewable electricity, It doesn’t currently provide the overall fuel mix for its business division on its website. Instead, it states that it is ‘in line with the UK national average’ for the period covering 1 April 2019 to 31 March 2020.

If we are to take this at face value, then Smartest Energy’s primary source is natural gas, which accounts for 39.4% of its electricity outputs. Renewables, including wind, solar and hydro, came in second at 37.9%, followed by nuclear at 16.6%, coal at 3.9% and ‘other’ at 2.2%.

*Relates to electricity supplied in the period April 2019 to March 2020.


How to contact Smartest Energy

New and existing Smartest Energy customers can contact the supplier through a variety of channels. These include calling, getting in touch through social media, sending an email or posting a letter.

Smartest Energy contact number

Customers who wish to contact Smartest Energy by phone will find the number for the department they require listed in the following table. Calls to Smartest Energy phone numbers cost the same as a standard landline call, except where otherwise noted.

Contact Smartest Energy by phone

Department	Smartest Energy Contact Number	Opening Hours
Business Customer Enquiries	01903 703400	Mon-Fri: 8.30am-5pm
Meter Readings	0800 088 4581	Freephone 24/7
Change of Tenancy	01903 703424	Mon-Fri: 8.30am-5pm
Energy Brokers	01903 703411	Mon-Fri: 8.30am-5pm
Industrial & Commercial Customer Enquiries	01473 234151	Mon-Fri: 8.30am-5pm
Smart Generation Enquiries	01473 234165	Mon-Fri: 8.30am-5pm
Gas Emergencies	0800 111 999	Freephone 24/7
Power Cuts	105	Freephone 24/7

Calls to most Smartest Energy contact numbers are charged at the same rate as a standard landline call.

Smartest Energy email address

Alternatively, you can use the Smartest Energy email contact information below to send an email to the supplier.

Contact Smartest Energy by email

Department	Smartest Energy Email Address
Business Customer Enquiries	[email protected]
Complaints	[email protected]
Energy brokers	[email protected]
Industrial & Commercial Customer Enquiries	[email protected]
Smart Generation Enquiries	[email protected]

Smartest Energy postal address

Should you prefer to contact Smartest Energy by post, you should write to:

SmartestEnergy Business Limited
Premium House
The Esplanade
Worthing
BN11 2BJ

Smartest Energy on social media

Finally, Smartest Energy is also active on social media, with accounts on both Twitter and Linkedin.

• Smartest Energy on Twitter
• Smartest Energy on Linkedin

Smartest Energy Complaints

Are you a Smartest Energy customer experiencing issues with the supplier? Take the steps below to file a formal complaint:

1. Contact the Smartest Energy business customer services team by calling the phone number above, sending an email to [email protected], or writing to its Worthing offices.
2. Smartest Energy’s customer complaints team will look into your issue and aim to resolve the problem within eight weeks. Your complaint will be escalated internally if deemed necessary.
3. Should you be unhappy with Smartest Energy’s proposed resolution, the supplier will send you a ‘deadlock’ letter outlining its final decision regarding your complaint. If you remain unsatisfied, you can contact the Energy Ombudsman, if your company is considered a microbusiness. If you are not a microbusiness, you may need to seek legal advice instead.
• Your company is considered a microbusiness if it...
• Employs fewer than 10 employees (or their full-time equivalent) and has an annual turnover or balance sheet no greater than €2 million
• Uses no more than 100,000 kWh of electricity per year or
• Uses no more than 293,000 kWh of gas per year.

Contact the Energy Ombudsman

The role of the Energy Ombudsman is to assist energy providers and consumers in resolving disputes with free and independent advice. The following information can be used to contact the Ombudsman.

By post

If you would like to put your Smartest Energy complaint in writing, you can do so by contacting the Energy Ombudsman at the following address:

Ombudsman Services: Energy
PO Box 966
Warrington WA4 9DF

By phone

Energy Ombudsman Contact Number	Opening hours
0330 440 1624	Mon-Fri: 8am-8pm, Sat: 8am-1pm

Calls to the Energy Ombudsman contact number are charged at the same rate as a standard local landline call.

By email

[email protected]

Our verdict



Smartest Energy offers a good range of flexible and fixed tariffs, so businesses have a lot of choice depending on their needs and budget. It also provides several extra services, such as free smart meter installation and its Web Analyser service. 

However, we noticed some red flags in online reviews of the supplier, such as steep price hikes and difficulties in switching away from Smartest Energy to another business energy provider. 

Furthermore, we were disappointed not to see a higher percentage of renewable energy in the electricity makeup of Smartest Energy’s business division, despite the supplier putting an emphasis on strong in much of its promotional material.

Overall, we give Smartest Energy a score of 2 out of 5 stars. Want to find a better energy deal for your business? You could save an average £1,305* on your business energy by switching with Selectra. Speak to an energy expert today on 020 3318 3633 or get a free personalised quote now.

Selectra Score: ★★

*Of customers who made a saving on a three-year business energy contract between January 2020 and May 2020, the average amount saved was £1,305.