The phrase "a variable tariff" is correct and usable in written English.
It can be used in contexts related to pricing, economics, or energy markets where tariffs may change based on certain conditions or factors.
Example: "The energy provider announced a new pricing structure that includes a variable tariff based on consumption levels."
Alternatives: "a fluctuating rate" or "a dynamic tariff".
Robert Lawrence, an economist at Harvard, proposes a variable tariff on imported oil to achieve the same effect and also to stimulate the development of domestic energy sources.
Kemp said the UK's regulatory situation was particularly unfriendly to the technology as it does not include a variable tariff that favours those that can shift their electricity demand to off-peak times.
One of the options being examined is that people who are on a variable tariff and pay by direct debit could be informed by their provider that they were going to be automatically switched to the lowest variable direct debit tariff from the same provider.
Ithaca, New York, Cornell University Press. 1 A variable tariff was used by the EU as part of the Common Agricultural Policy.
The table will compare the average energy bill paid by a household on a standard variable tariff from the larger energy companies with deals from the 10 cheapest suppliers.
However, No 10 admitted later that ministers were just giving Ofgem the powers to impose a cap for everyone on a standard variable tariff, not actually ordering the regulator to impose it.
Under the plan, if a customer has been on a standard variable tariff – the more expensive default rate – for three years or more they will receive a letter from Ofgem informing them that they will be put on this open database, unless they opt out.
It says that 8m households have been on a standard variable tariff with the big six – EDF Energy, British Gas, SSE, E.ON, Scottish Power and npower – for more than three years, the report said.
Would it not have been simpler, easier and quicker to make each major supplier improve the lot of their own existing customers that have been on a standard variable tariff (SVT) for say more than two years by moving them on to that company's best fixed one-year tariff?
A typical dual fuel customer who buys their gas and electricity from the same supplier and is on a standard variable tariff is set to save about £75 on average.
A British Gas customer, in an average UK home – on the firm's standard variable tariff – spends about £1,200 a year heating and lighting their home.
