Articles

Solar and Rockets in Maine – A Match Made in th...

bluShift Aerospace launched the Stardust 1.0 prototype sounding rocket from the Loring Commerce Centre in Limestone, Maine, marking Maine's first commercial rocket launch and the world’s first commercial rocket launch...

Solar and Rockets in Maine – A Match Made in th...

bluShift Aerospace launched the Stardust 1.0 prototype sounding rocket from the Loring Commerce Centre in Limestone, Maine, marking Maine's first commercial rocket launch and the world’s first commercial rocket launch...

The 2021 Federal Solar Tax Credit Step Down

Update: Terrific news came recently. As part of the recent spending package signed on Dec. 28, 2020, the Solar ITC federal tax credit stepdown has been delayed until 2023. That...

The 2021 Federal Solar Tax Credit Step Down

Update: Terrific news came recently. As part of the recent spending package signed on Dec. 28, 2020, the Solar ITC federal tax credit stepdown has been delayed until 2023. That...

Replace Lead Acid with Lithium Batteries for RV...

  Westsail 32 with solar and wind Photo: Katie Payne It's time. Your RV or boat’s lead acid battery bank had a good run, but just isn’t able to hold a...

Replace Lead Acid with Lithium Batteries for RV...

  Westsail 32 with solar and wind Photo: Katie Payne It's time. Your RV or boat’s lead acid battery bank had a good run, but just isn’t able to hold a...

altE’s Acquisition of Real Goods: 1 Year Later

It's now been a full year since altE acquired Real Goods, the California-based purveyor of solar and off-grid living supplies – and what a year it's been! 2020 has thrown...

altE’s Acquisition of Real Goods: 1 Year Later

It's now been a full year since altE acquired Real Goods, the California-based purveyor of solar and off-grid living supplies – and what a year it's been! 2020 has thrown...

NEC 690.12 Rapid Shutdown of PV Systems on Buildings – Part 2: Charge Controllers

NEC 690.12 Rapid Shutdown of PV Systems on Buil...

Rapid Shutdown Recap When last we met, we discussed NEC 690.12 Rapid Shutdown requirements for inverters. For Part 2 of this topic, we are going to discuss options for Rapid...

NEC 690.12 Rapid Shutdown of PV Systems on Buil...

Rapid Shutdown Recap When last we met, we discussed NEC 690.12 Rapid Shutdown requirements for inverters. For Part 2 of this topic, we are going to discuss options for Rapid...

NEC 690.12 Rapid Shutdown of PV Systems on Buildings – Part 1: Inverters

NEC 690.12 Rapid Shutdown of PV Systems on Buil...

Rapid Shut Down In 2014, the National Electrical Code included a new requirement, 690.12(1) through (5). It was a short requirement – only six sentences. PV system circuits installed on...

NEC 690.12 Rapid Shutdown of PV Systems on Buil...

Rapid Shut Down In 2014, the National Electrical Code included a new requirement, 690.12(1) through (5). It was a short requirement – only six sentences. PV system circuits installed on...