Complete the passage with suitable words from the word bank. You may not use any of the words more than once. (15选10)solar; influential; retail; expand;entirely; appealing; innovative; extend;lease; beneficiaries; renewable; profitable; existing; wholly; ownersSolarCity is a major installer of solar panels. The technology can help consumers and businesses save money on their energy bills by converting 1)__________ energy into electricity. Compared to Tesla, SolarCity has smaller market capitalization, but it seems to have the potential to be more economically 2)__________.SolarCity has made mass adoption of solar panels possible in the US through efficient assembly, economies of scale, vertical integration and 3)_____________financing techniques. And it continually seeks ways to 4)___________its market.In order to promote mass adoption, SolarCity developed a solar 5)__________strategy that lets people put solar panels on their roofs for no money down and start saving money instantly, which is very 6)_________to consumers. To obtain funding for this lease strategy to work, SolarCity developed another new set of financing techniques by making deals with big Wall Street firms to finance the construction of thousands of systems. To gain cost savings, SolarCity figured out a way to turn this 7)__________business into something that resembles a wholesale one. Instead of grabbing a share of a(n) 8)_____________ market, SolarCity is tapping into innovations to create 9)___________new markets. SolarCity has successfully expanded its market by offering solar leases to small businesses.The success of SolarCity should be mainly attributed to its innovative ideas and unremitting (不懈的) efforts. Of course, SolarCity and other installers have been huge 10)_____________ of a federal tax credit for investments in solar power.