Wind and solar power appear set for a record-breaking year in 2016 as a clean-energy construction boom gains momentum in spite of a global glut of cheap fossil fuels. Installations of wind turbines and solar panels soared in 2015 as utility companies went on a worldwide building binge, taking advantage of falling prices for clean technology as well as an improving regulatory and investment climate. Both industries have seen stock prices jump since Congress approved an extension of tax credits for renewables as part of last month's $1.14 trillion budget deal. Orders for 2016 solar and wind installations are up sharply, from the United States to China to the developing economies of Africa and Latin America, all in defiance of stubbornly low prices for coal and natural gas, the industry's chief competitors. The policy base for renewables has strengthened, both on the incentives side and through mandates," [former Energy Department assistant secretary Dan] Reicher said. "At the same time, the financing of renewable-energy projects has become a mainstream business for Wall Street. The early-stage investments from Silicon Valley for clean energy were small potatoes compared to the massive investments Wall Street is making. It truly is a global business."