Solar Speaks special edition: How UL is keeping the grid safe and secure for more solar

By now most solar contractors are aware of how interconnection requirements like Rule 21 in California are changing to allow inverters to play an active role in stabilizing the grid. While this can be a positive move to allow more renewable energy capacity on the grid, aspects like security and safety must also be considered. This is where UL comes in. We spoke to Bruce Bailey, VP of renewable energy, and Ken Boyce, Principal Engineer at UL to learn more.