US industry experts trace the evolution of PV rapid shutdown rules and outline how recent updates to UL 3741 are reshaping compliance pathways for rooftop and commercial solar in the United States.

Ryan Mayfield led an informative discussion on the history of the NEC PV Hazard Control System rules and the latest changes to the UL 3741 standard.

Nest CHOOSECOLS inside UNIQUE to extract non-adjacent columns, and use INDIRECT for interactive header dropdowns.

Use MAP and LAMBDA to build centralized, error-proof, and auto-spilling Excel spreadsheet systems.

Array Digital Infrastructure, Inc. provides wireless telecommunications services in the United States. The company offers wireless services, including voice, messaging, and data services. It also ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Getting good sleep is critical. A 2018 study found that people who sleep for five to six hours are 19 percent less productive than people who regularly sleep for seven to eight hours per night. People ...

Another day, another buzzy weight loss strategy. But today’s lesson, the 2-2-2 method for your metabolism, actually entails multiple weight loss techniques like keto, intermittent fasting, ...

Josh Helke started rock climbing at five years old. Throughout a lifetime spent in a sport that relies on steady, deliberate ...

The best ways to send money are fast, free or low in fees, and offer good options for sending and receiving funds. Many, or all, of the products featured on this page are from our advertising partners ...