British PM May orders energy price cap, sending shares tumbling

By Kate Holton and William JamesMANCHESTER, England (Reuters) - Prime Minister Theresa May said on Wednesday she would impose a price cap on the energy market to help millions of households, sending stocks in the country's largest energy provider, Centrica to a 14-year low.May had proposed a price cap on the sector earlier this year, the biggest market intervention since it was privatised almost 30 years ago, but the plan was thrown into doubt after her ruling Conservative Party lost their parli