It helps to read Part 1 (see link) first to get a handle on what "reactive power" means. This post demonstrates a huge advantage of solar power, in combination with newly designed microinverters, that takes a burden off of the electrical grid without any loss in efficiency producing active power. This is a great argument for solar as a key power source for a smart grid.

An interesting story, but a little more explanation and peer review might make it easier to digest.

This is a terrifically informative story that discusses some of the lesser known benefits and techniques for micro-grids. While it is largely single sourced these principles are well documented.

Interesting technology that can be seen from large energy providers as a benefit. The problem with solar isn't that it is expensive, the problem is that big energy providers don't see an advantage to loosing their guaranteed profit margins from people who provide their own energy. Without the support of big energy, individual solar generation will die. The article points out a technology that can be seen as mutually beneficial to the homeowner and the energy provider. This may breath life into the expanded use of Solar at Home.