Renewables were the biggest new source of electricity last year as the cost of building new wind and solar farms fell. Clean energy provided 55 percent of all new capacity added worldwide, the most ever, and total investment was about double the amount for generators driven by fossil fuels, according to a report published Thursday by UN Environment, the Frankfurt School-UNEP Collaborating Centre and Bloomberg New Energy Finance.
Within the past decade or two, the solar industry has experienced a great deal of evolution and expansion. In the U.S., one of the largest shakeups was in 2010 when PV panel prices dropped. The inverter market has also been subjected to changes, especially in terms of new topologies and increased functionalities. [...]