BERLIN (Reuters) -German Economy Minister Robert Habeck said on Tuesday he was happy with the length of a liquefied natural gas (LNG) supply deal struck with Qatar, as Berlin pursues new energy partnerships after a plunge in gas from Russia. “Fifteen years is great,” Habeck told a business conference in Berlin, referring to the length of the contract. “I wouldn’t have had anything against 20 (years) or longer contracts.” However, Habeck pointed to Germany’s plan to become carbon-neutral by 2045, placing limits on the quantities of gas the country would receive in the future. Germany will have …