6 Min Read TOKYO (Reuters) - Japan’s worst electricity crunch since the aftermath of the Fukushima crisis has exposed vulnerabilities in the country’s recently liberalised power market, although some of the problems appear self-inflicted. Power prices in Japan hit record highs last month as a cold snap across northeast Asia prompted a scramble for supplies of liquefied natural gas (LNG), a major fuel for the country’s power plants. Power companies urged customers to ration electricity to prevent blackouts, although no outages occurred. The crisis highlighted how many providers were unprepared for such high demand. Experts say LNG stocks were not topped up ahead of winter and snow disabled solar power farms.