Bloomberg While TransCanada Corp. continues to weigh whether to build its long-delayed Keystone XL oil pipeline, the company announced another major expansion of its natural gas system in Alberta. TransCanada will spend C$2.4 billion ($1.9 billion) to expand its NGTL System, adding 1 billion cubic feet of daily shipping capacity, according to a statement. The company struck binding agreements with …

Bloomberg SunPower Corp. is willing to sell about $1.4 billion in long-term solar leases to raise $200 million now. The 45,000 contracts stretch out for as long as two decades, generating monthly payments from customers that altogether installed 400 megawatts of rooftop panels. SunPower took a non-cash charge of $474 million in the fourth quarter as a result, the San …

Bloomberg Oil posted its first weekly increase since last month as rebounding equity markets eased concern about economic growth and a weakening dollar boosted the allure of commodities priced in the US currency. Futures in New York rose 0.6 percent and gained 4.2 percent this week. The greenback touched a three-year low earlier in the day before edging higher, though …