The decision to lease solar panels to both the business and residential sectors has really paid off so far for SolarCity (SCTY.DL). Market-conscious investors have had to notice the atmospheric rise of the company's stock over the past several months. With fresh, financial backing from Goldman Sachs (GS 0.38%), the company is set to provide a wider customer base with its free installations, and fees below typical utility bills. 

Now that deals are being signed with municipalities, as well, SolarCity is sure to continue impressing Mr. Market. The disruptive leasing model has also caught the eye of competitor, SunPower (SPWR -3.10%), but it is getting to the party a bit later than the Elon Musk-inspired SolarCity. Only time will tell if it's fashionably late or detrimentally late.