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Half Hourly Electricity Meters


When you run a large business with high energy consumption, half hourly metering is something you need to know about. Here, we’ve answered a few questions you may have about half hourly electricity meters and how they work.

What is a half hourly meter?

A half hourly meter, as the name indicates, measures how much electricity is being used every half-hour. This type of meter is linked to a communications device which allows its readings to be sent to the energy supplier at the end of each half-hour period.

What are the benefits of a half hourly meter?

Because readings are automatically taken and transmitted so frequently, having this type of meter ensures your energy bills are very accurate rather than being based on estimations. The detailed information the meter gathers about your electricity use also makes it very easy for you to track the effects of any energy efficiency measures you put into place.

Does my business need a half hourly meter?

Half hourly meters are mandatory for businesses with a peak electricity load of 100kW or more in any single half-hour period. Businesses with a peak electricity load of more than 70kW have the option of having one installed, but are not required to do so.

How do I know if I have a half hourly meter?

There’s an easy way to identify if your business has this type of meter – simply check the Supply Number on the most recent electricity bill for the premises. If that number begins with ‘00’, you have a half hourly meter installed. It’s a good idea to check this number when moving into new premises.

Can I switch my half hourly business energy tariff?

While switching a half hourly tariff can be more of a complex process than switching a regular tariff, it can certainly be done. The easiest way to explore your options is to discuss your requirements with an impartial energy broker like SwitchMyBusiness.com. Our specialist corporate team will help you find the best electricity tariff for your business and will assist you through the entire process of switching to a new supplier. If you’d like to like to start comparing electricity prices now, or if you have any questions about switching your half hourly tariff, you can call 0800 411 8830 to speak to one of our experts.

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Excellent, / 10

an absolute disappointment

"I have been using switch my business for many years re the business energy deal. Normally one of the team member would contact me about 2 months before the contract terminated and look for another deal. Last year it was done by James Bainbrigge for a 1 year deal. This year I have not heard from anyone and therefore started to contact James by email and also leaving messages on his phone. After many unsuccessful attempts, I called the 0800 and 0808 numbers. I have done so more than a dozen times. Each time I was left on hold for up to ten minutes and then got cut off. I also email to sales team and received no response. In desperation I contacted customer service team twice by email, received the acknowledgment email and nothing further. My contract is running out this Saturday and therefore at the beginning of this week, I sent in a quotation. No one has contacted me to date. I cannot do anything more than what I have done. What a shamble!!!"

This review was posted by anthony on the 03rd of June 2021

Kay was extremely helpful and…

"Kay was extremely helpful and efficient, in terms of both advice and setting up our account. Would recommend 100%."

This review was posted by customer on the 24th of November 2020

After Scottish Power changed our…

"After Scottish Power changed our business rates half way through the contract we were in set up by Switch My Business, we spoke to Natalja and she helped us sort this issue. Unfortunately, Scottish Power wouldn't play ball and were not agreeing to let us out the contract. Natalja worked extremely hard to sort this out for us and even put a claim in with them for the out of contract rates they put us on as one advisor at Scottish Power said they would refund the difference then another said they would not, along with plenty of other issues and broken promises along the way. It was a long and pretty painful process but Natalja did not give up and we have won the claim against Scottish Power. Very happy with the service Natalja provided."

This review was posted by Sara on the 19th of November 2020

Prompt & efficient service from Stephen…

"Prompt & efficient service from Stephen who really went into all the details in a very short period of time. I would definitely use SMB again. Thank you Stephen!"

This review was posted by Jackie on the 18th of November 2020

Highly recommended!

"Dealt with Bhavni, she was also extremely helpful, patient and dealt with my case in a very professional way. Answered all my questions promptly and got the best rate for our business. Highly recommended!"

This review was posted by S. Amin on the 17th of November 2020