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Triad warnings

Sign up for advance warnings so you can consider reducing electricity consumption during potential Triad periods.

Three ways Triad alerts help your business

What are Triads?

A Triad only covers a half hour period but can have a big impact on your energy costs. Our alerts help you stay focused on energy usage in winter.

How many alerts?

We send out about 20 alerts a year.

So, by working together, you have a good chance of managing your energy for financial benefit.

Do I need it?

If your business has generating capacity and can provide excess electricity to the National Grid during a Triad, you can be well rewarded.

Why Triads matter to major power users

If your business uses a lot of electricity the price you pay could be adversely affected by how much energy you use during the three half-hour periods of peak demand that the National Grid uses to determine its annual charge for transmission.

What do I need to know about Triads?

Triads are the three half hour periods of peak power demand across the National Grid in a year (from November to February). These three points are used to calibrate the system costs, which are passed on to industry.

Peak demand – who pays for Triads?

If your business is a heavy consumer of energy, you do. Triad charges to business can range from around £15-£40 per kilowatt depending on where you are in the country. So, in any half-hour on a cold day in winter when there’s a chance of a Triad, it makes sense to minimise your power consumption. If your business is a heavy power user, you should sign up for our free Triad alerts.

Is TNUoS the same as Triads?

TNUoS is short for Transmission Network Use of System. The terms are often used interchangeably, though Triads may be more familiar. The aim of the Triad system is to incentivise industry to help smooth out peaks in energy demand during the winter, especially in cold snaps.

How many Triad warnings might I get?

There could be around 20-30 potential Triad warnings in winter (November to February). However, since Triads are assessed after the event, it’s impossible to know in advance which half-hour will be a Triad. That’s why it’s important to sign up for our Triad warning service and have a serious energy efficiency strategy in place.

How do Triads work?

A Triad represents one half-hour period of the highest demand for electricity. To avoid Triads affecting businesses in consecutive half-hours, each has to be at least 10 days apart. When power demand peaks, the National Grid network is under maximum pressure to deliver power where it’s needed, and causes generators to bring online more expensive (and less efficient) production capacity. So, it’s in everyone’s interest to work together to minimise energy usage.

Can I make money from Triads?

Yes. If you can generate power and are able to supply excess electricity to the National Grid during Triad periods, there can be substantial financial incentives available. Simply sign up with SSE Business Energy on the form below.

Sign up for peak power warnings

Triads are set by the National Grid so we can’t guarantee to give exact timings but we’ll do our best to provide well-informed warnings.