Technical reviews of solar+storage news

Solar energy growth is exponential again – up 28%, 3.2% of all electricity in 2020

By John Fitzgerald Weaver | March 3, 2021

The US Department of Energy’s Energy Information Administration (EIA) has released the February Electric Power Monthly, providing data through the end of 2020.  The report notes that solar energy exponential growth is back, as photovoltaic (solar) generation grew by more than 28%, accounting for ~3.2% of total US electricity generated for the year. Total electricity…

Read More >

Hydrogen power paste, solar powered helicopter on Mars, more! Episode #33

By John Fitzgerald Weaver | February 26, 2021

The Clean Power Hour is a weekly clean energy headline review and commentary podcast brought to you by Tim Montague and yours truly – the CommercialSolarGuy – John Fitzgerald Weaver. First of course, here’s the podcast – Episode 33! Now, to the news! Hydrogen-powered drives for e-scooters …this advance is really something significant. One argument against hydrogen…

Read More >

What does a commercial solar panel system cost – free government research series

By John Fitzgerald Weaver | February 24, 2021

The Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) has released their U.S. Solar Photovoltaic System and Energy Storage Cost Benchmark: Q1 2020. The document is a bottom up review of the costs to build solar power plants of all sizes, and for the first time – it includes energy storage. Bottom up means…

Read More >

Value of solar up to 51¢/kWh, Texas power grid collapse, and more! Episode #32

By John Fitzgerald Weaver | February 19, 2021

The Clean Power Hour is a weekly clean energy headline review and commentary podcast brought to you by Tim Montague and yours truly – the CommercialSolarGuy – John Fitzgerald Weaver. First of course, here’s the podcast – Episode 32! Now, to the news! Tim likes drone videos … and now – we like drone videos. The Tesla…

Read More >

Commercial battery testing: some like it hot!

By John Fitzgerald Weaver | February 16, 2021

Lithium ion batteries are going to be deployed in massive volumes going forward globally. DNV GL tests those batteries to allow groups like 8Minute Energy to better model the technical, and thus financial, performance of those batteries. DNV GL’s most recent 2050 projections suggest 3 TWh of lithium ion globally, and 5.4 TWh of long…

Read More >
Nordic Harvest Indoor Vertical Farm Tall stacked farming

Solar power after sunset, Amazon’s EV, 564% ROI, more! Episode #31

By John Fitzgerald Weaver | February 12, 2021

The Clean Power Hour – a weekly clean energy headline review and commentary podcast run by Tim Montague, and yours truly – the CommercialSolarGuy – John Fitzgerald Weaver. First of course, here’s the podcast – Episode 31! Now, to the news! Musk offers $100M for carbon capturing X-Prize Ok, so if we’re going to extract…

Read More >

Solar cell efficiency record, but a product delayed

By John Fitzgerald Weaver | February 8, 2021

On December 21, 2020 OxFord PV announced that they set a new record for a perovskite-silicon tandem research solar cell at 29.52%. The perovskite cell was placed atop a monoPERC NType silicon solar cell. This efficiency percentage broke the very recently set record of 29.15% by Helmholtz-Zentrum Berlin, who had just announced their solar cell…

Read More >

Clean energy storage everywhere, the promise of HVDC, Elon’s $100M carbon capture, & more! Podcast #30

By John Fitzgerald Weaver | February 5, 2021

The Clean Power Hour – a weekly clean energy headline review and commentary podcast run by Tim Montague, and yours truly – the CommercialSolarGuy – John Fitzgerald Weaver. First of course, here’s the podcast – Episode 30! Now, to the news! Elon Musk announces he’ll donate $100 million toward the best carbon capture technology. As…

Read More >

Corporate solar = utility solar = rooftop solar, both growing and shrinking

By John Fitzgerald Weaver | February 4, 2021

The commercial and industrial solar market is broad – from a few panels on a storage facility, to a 500 acre solar power facility built to feed a Colorado steel mill, to the largest solar facilities in the world signing virtual power purchase agreements (PPA) to offset electricity usage hundreds of miles away. Big solar…

Read More >

Rhode Island commercial solar power incentives – a 20 year paycheck from your roof

By John Fitzgerald Weaver | February 3, 2021

The State of Rhode Island offers a twenty year electricity purchase contract to commercial rooftop owners that install solar power. Essentially, CommercialSolarGuy will build a small power plant on your building, and National Grid will purchase all of that electricity.  Payments are made through a monthly electronic deposit as National Grid sells that electricity into…

Read More >

Solar Services

Need expert guidance?

We can help with construction, feasibility, engineering, development, residential, solar energy storage, and resiliency services.

Want to know more?

Contact me today to set up a 15-minute call. I'll do a preliminary design and rough pricing to determine if we are a good fit.

Please enter your name.
Please enter a message.