Updated forecast from NESO to TNUoS tarriffs

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The National Energy System Operator (NESO) has updated its forecast for the Transmission Network Use of System (TNUoS) charges and the implications could be significant for your business energy spend.

The average TNUoS charges for 2026/27 are now expected to rise by 63%. GrowSave recommends that companies of all sizes should understand how these changes will affect their electricity bills and budgets.

NFU Energy has written an article that breaks down what the forecasts mean, why charges are increasing, and how businesses can prepare.


Click below to read on to make sure you’re ready for the upcoming shifts in network costs.


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