Joseph D. Ortiz
@earthsciinfo.bsky.social
NatGeo Explorer, Oceanographer, Climate Scientist; Env. Remote Sensing; Energy & Sustainability; husband, father #FirstGen, Views my own; Google scholar: https://scholar.google.com/citations?hl=en&user=qMBuSe4AAAAJ
But did you ha e to zoom in to tell? I did not realize who well black works for camouflage into Loki came into our home.
December 5, 2025 at 11:18 AM
But did you ha e to zoom in to tell? I did not realize who well black works for camouflage into Loki came into our home.
They will surely try. But the market is not listening.
December 5, 2025 at 11:17 AM
They will surely try. But the market is not listening.
See for example…. www.sciencedirect.com:5037/science/arti...
www.sciencedirect.com
December 1, 2025 at 2:58 AM
See for example…. www.sciencedirect.com:5037/science/arti...
For example, Shell closed its HFCV business in California. www.hydrogeninsight.com/transport/sh...
Shell to permanently close all of its hydrogen refuelling stations for cars in California
Oil major cites ‘supply complications and other external market factors’ in decision to exit market for light-duty H2 vehicles in the US
www.hydrogeninsight.com
December 1, 2025 at 2:12 AM
For example, Shell closed its HFCV business in California. www.hydrogeninsight.com/transport/sh...
And as you note, the situation is worse if you use H2 as a fuel in an internal combustion engine.
December 1, 2025 at 2:08 AM
And as you note, the situation is worse if you use H2 as a fuel in an internal combustion engine.
As a result it takes 3-5x more energy to do the same work with a HFCV as with a BEV. That is why BEVs are expanding worldwide while HFCVs are not.
December 1, 2025 at 2:07 AM
As a result it takes 3-5x more energy to do the same work with a HFCV as with a BEV. That is why BEVs are expanding worldwide while HFCVs are not.
Fuel cells have efficiency of 30-60% for electrical generation. In contrast, an electric motor has efficiency of >90%. Add to this that the H2 molecule holds less energy than the H2O from which it is obtained, and that the H2 must be compressed and transported for use.
December 1, 2025 at 2:07 AM
Fuel cells have efficiency of 30-60% for electrical generation. In contrast, an electric motor has efficiency of >90%. Add to this that the H2 molecule holds less energy than the H2O from which it is obtained, and that the H2 must be compressed and transported for use.
The GOP would like that, but I think the irony is that the market will prevail.
November 30, 2025 at 6:55 PM
The GOP would like that, but I think the irony is that the market will prevail.
The future will be electric. Fossil fuels and hydrogen are not cost competitive for transportation relative to renewable-powered BEVs.
🧪🔌💡☀️💨💧🔋
🧪🔌💡☀️💨💧🔋
November 30, 2025 at 5:16 PM
The future will be electric. Fossil fuels and hydrogen are not cost competitive for transportation relative to renewable-powered BEVs.
🧪🔌💡☀️💨💧🔋
🧪🔌💡☀️💨💧🔋
And as for Hydrogen trucks in China …
🧪🔌💡☀️💨💧🔋
🧪🔌💡☀️💨💧🔋
November 30, 2025 at 5:16 PM
And as for Hydrogen trucks in China …
🧪🔌💡☀️💨💧🔋
🧪🔌💡☀️💨💧🔋
Annual sales data in China show that their trucking fleet is shifting from diesel to gas and BEV, which provides cost, environmental & climate advantages. 🧪🔌💡☀️💨💧🔋
November 30, 2025 at 5:16 PM
Annual sales data in China show that their trucking fleet is shifting from diesel to gas and BEV, which provides cost, environmental & climate advantages. 🧪🔌💡☀️💨💧🔋
Absolutely! That is a great point. We made sure our home was tight before installing HVAC upgrades.
November 30, 2025 at 4:47 PM
Absolutely! That is a great point. We made sure our home was tight before installing HVAC upgrades.
This one is accessible. I have a three-season heat pump, heat pump water heater and an induction stove in NE Ohio. They’ve cut my emissions by 87% and are comparable in cost to operate. homes.rewiringamerica.org/articles/hea...
The pros and cons of heat pumps
Lower your bills, save money, heat and cool your home
homes.rewiringamerica.org
November 30, 2025 at 12:09 PM
This one is accessible. I have a three-season heat pump, heat pump water heater and an induction stove in NE Ohio. They’ve cut my emissions by 87% and are comparable in cost to operate. homes.rewiringamerica.org/articles/hea...
Renewables are dominating electricity power demand. But as electrification expands, primary energy consumption from fossil fuels will decline.
November 30, 2025 at 11:03 AM
Renewables are dominating electricity power demand. But as electrification expands, primary energy consumption from fossil fuels will decline.
Key electricity generation points for Q3 2025: The increase in renewable generation in China exceeded that of the rest of the work combined. The drop in Fossil Fuel use in China and India exceeded the increase in Fossil Fuel use for the rest of the world! 🧪🔌💡☀️💨💧🔋
November 30, 2025 at 2:01 AM
Key electricity generation points for Q3 2025: The increase in renewable generation in China exceeded that of the rest of the work combined. The drop in Fossil Fuel use in China and India exceeded the increase in Fossil Fuel use for the rest of the world! 🧪🔌💡☀️💨💧🔋
Through Q3 2025, Solar and Wind together exceeded Global Demand Growth. 🧪🔌💡☀️💨💧🔋
November 30, 2025 at 2:01 AM
Through Q3 2025, Solar and Wind together exceeded Global Demand Growth. 🧪🔌💡☀️💨💧🔋