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.

Abstract: Since substation automations systems were introduced in the 1990s to protect, control, and automate high-voltage and medium voltage substations, several new technologies have been applied to ...

Greenhouse environmental regulation can create an optimal environment for the growth of greenhouse crops and effectively improve their production conditions. This study aimed to develop an intelligent ...

WASHINGTON - The US needs to control Venezuela’s oil sales and revenue indefinitely to drive the changes it wants to see in the South American country, Energy Secretary Chris Wright said on Jan 7. The ...

The Energy Department said today the only oil going in and out of Venezuela will be that that goes through *** US approved channel, and we are hearing administration officials from here at the White ...

Oil prices barely budged after the U.S. ousted Venezuela’s Nicolás Maduro and President Trump pledged billions to revive the country’s oil infrastructure. WSJ’s David Uberti breaks down the market ...

Washington — Secretary of State Marco Rubio said Wednesday that the Trump administration has "tremendous leverage" over Venezuela because of the U.S. "quarantine" of sanctioned oil, and said the U.S.

Energy Secretary Chris Wright said on Wednesday the Trump administration will oversee the sale of Venezuelan oil and control the proceeds under a new export plan designed to get crude flowing again ...

The Trump administration said Wednesday it will control Venezuela’s oil sales “indefinitely” in the wake of deposed strongman ruler Nicolás Maduro’s capture. Energy Secretary Chris Wright asserted the ...

Secretary of State Marco Rubio told reporters on Capitol Hill that the Trump administration is close to executing a deal to take between 30 million and 50 million barrels of Venezuelan oil and sell it ...