Posts by John Fitzgerald Weaver

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…

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…

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…

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…

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…

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…

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…