Centrica, the owner of British Gas, is to buy two New York-based power   providers from Iberdrola USA for $110m (£71m).

The deal to acquire Energetix and NYSEG will be done through the company’s   North American subsidiary, Direct Energy Sevices.

Centrica   said the purchase would strengthen its position in the US Northeast,   adding 245,000 residential and small business customers.

Energetix and NYSEG Solutions operate out of Rochester and Binghamton, New   York.

Shares in Centrica,   which have risen over 7pc since the start of the year, were flat in early   trading on Thursday.