A handful of states already require new distributed resource installations to use smart inverters that meet a standard known as IEEE 1547–2018. As more devices that meet the standard become available, more states are evaluating such a requirement. The SunSpec Alliance expects that more than 30 states will set smart inverter requirements by April 2023 based on an examination of state regulatory dockets from the past year, said SunSpec Alliance Chair Tom Tansy in an email.

Most smart inverter manufacturers will be able to provide smart inverters to project developers and distributors sometime between March and August 2023, according to an analysis from the Interstate Renewable Energy Council (IREC) authored by IREC chief regulatory engineer Brian Lydic.

Circa 2020 Brushless motors are awesome some can reach 50,000 rpm or higher they seem to be the next generation after brushed motors.

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Brushed or brushless motors? Which one would you choose and why?

Blink and you miss it! 🌏

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Planet Earth has recorded its shortest day since records began.

The 1.59 milliseconds shaved off the usual 24-hour spin on June 29 raises the prospect of a leap second having to occur to keep clocks aligned. This would be the first time global clocks have been sped up.

The Earth’s rotation has been known to slow down, with 27 leap seconds needed to keep atomic time accurate since the 1970s. The last was on New Year’s Eve 2016, when clocks paused for a second to allow the Earth to catch up.

Back in the 1970s, the Soviet Union began an ambitious project to drill down 15 km. Whilst they didn’t succeed, the Kole Superdeep Borehole is still the deepest vertical borehole in the world.

The Earth got hit by a mysterious solar tsunami 9,200 years ago!

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