npower is advising large energy users to start planning their Winter energy management strategy now to ensure they are well prepared to take control of their energy costs.

One key step businesses can take is to put systems in place to better manage triads and the transmission fees that result from them. Each year, three half hour periods of peak energy demand, known as triads, are called by the National Grid, and the demand in these periods is used to set transmission fees (TNUoS), which can be part of your energy bill. Triads fall between November and February, usually between 5.00-6.00pm during cold weather spells, when industrial demand coincides with the high domestic tea time period.

However, businesses that have TNUoS as a pass through charge on their bill can actively manage their consumption, and therefore their costs, during these times as part of an energy management strategy. npower offers a triad warning service for customers, issuing a prediction of when a triad period is likely to occur a day in advance so that businesses can make an informed choice on how to manage their consumption and reduce the impact of National Grid fees.

Businesses can estimate how much they could save by responding to Triad warnings using npower’s free triad savings calculator tool at

Wayne Mitchell, npower’s industrial and commercial markets director, commented, “We’re always working to help businesses take control of their energy costs, and planning to manage triads is a key part of an integrated energy strategy. npower not only issues triad warnings a day in advance, to enable businesses to incorporate any measures into their usual energy management plans, but our online savings calculator can also help businesses work out the cost benefits of signing up to the warning service.

“npower has offered a triad warning service for over 15 years and has an excellent track record for accuracy. We would urge businesses to sign-up as soon as possible, so they have the alerts in place before the cold weather begins. Only then they will be able to take full advantage of the benefits offered.”