Protecting Firefighters and Solar Homes with Rapid Shutdown During Wildfire Season

When Sean White meets firefighters, he often asks what they do if they encounter solar homes during wildfires. Do they rush to protect the homes?

In the past, the answer was no, says White, instructor of HeatSpring’s 40-Hour NABCEP Advanced PV Certification and CEUs course. He’s the author of numerous books about solar and was the […]

New Standards Aim to Ensure Storage is Safe But Fail to Distinguish Among Battery Chemistries

A lithium-ion battery in a container near Phoenix owned by Arizona Public Service (APS) caught fire in April 2019, then other batteries in the container caught fire, releasing explosive gas and sparking an explosion that hurt several first responders.

Such battery fires, prompted by high temperatures resulting from mechanical failure, damage to the batteries or short […]

October 14th, 2020|Categories: Certification, NABCEP, Solar Design & Installation, Solar Plus Storage||

Re-Thinking Wire Sizing Rules of Thumb for Solar PV

For many years, the solar industry has followed rules of thumb about oversizing wires to reduce energy losses in solar PV systems.

The rules of thumb call for the PV industry to oversize wires to ensure no more than a 2% voltage drop when transmitting power across conductors. As the energy is transmitted across conductors, power […]

September 24th, 2020|Categories: Certification, Megawatt Design, NABCEP, Solar Design & Installation||

The Quiet Revolution: Solar-Plus-Storage Gains Ground

In some parts of the country, the costs of solar-plus-storage are beating grid prices, which is good news for the solar industry and the environment.

For example, in Nevada, regulators in 2019 approved three solar-plus-storage power purchase agreements (PPA) for  Berkshire Hathaway Energy ranging from $31/MWh to $37/MWh. In comparison, levelized prices for grid power now […]

September 15th, 2020|Categories: Certification, NABCEP, Solar Business Growth, Solar Design & Installation, Solar Plus Storage, Uncategorized||

How to Streamline the Design Process for Large-Scale Solar Projects

When designing a large-scale solar project, it’s critical to tackle classic hang-ups as early as possible to avoid slowing a project and encountering cost overruns, says Ryan Mayfield, instructor, along with Randy Batchelor, of HeatSpring’s Megawatt Design course. 

Designers need to break a project down into stages ranging from pre-award to construction and commissioning. For each […]

September 9th, 2020|Categories: Megawatt Design, NABCEP, Solar Business Growth, Solar Design & Installation||