Bob Mayo
@bobmayo.com
Building Electrification Advocate. Climate-tech curious. Engineering and research at the intersection of hardware and software. Enjoyer of well-designed interfaces between subsystems.
I wonder if Apple would block the ICE Watch app from the App Store if it was an official app published by the State of Minnesota and it only covered Minnesota. Or Oregon.
www.cbsnews.com/news/apple-r...
www.cbsnews.com/news/apple-r...
Apple removes app that tracks ICE agents from its App Store, developer says
The developer of the ICEBlock app said the software has been removed from Apple's App Store due to "objectionable content."
www.cbsnews.com
January 9, 2026 at 5:06 AM
I wonder if Apple would block the ICE Watch app from the App Store if it was an official app published by the State of Minnesota and it only covered Minnesota. Or Oregon.
www.cbsnews.com/news/apple-r...
www.cbsnews.com/news/apple-r...
Reposted by Bob Mayo
The Trump administration has sued two California over bans on gas hookups in new buildings: www.mercurynews.com/2026/01/05/t...
Trump administration sues Morgan Hill, Petaluma over natural gas bans
At the center of the case is whether cities can require new buildings to go all-electric when federal law governs how gas appliances are regulated — a question the government says must be answered …
www.mercurynews.com
January 7, 2026 at 4:04 AM
The Trump administration has sued two California over bans on gas hookups in new buildings: www.mercurynews.com/2026/01/05/t...
Reposted by Bob Mayo
Unhook ourselves from oil and gas and we unhook ourselves from dependency on dictators, autocrats and expansionist regimes all over the planet.
Renewables and other low-carbon energy sources are not just good climate sense. They are also good political sense.
Renewables and other low-carbon energy sources are not just good climate sense. They are also good political sense.
January 6, 2026 at 5:04 PM
Unhook ourselves from oil and gas and we unhook ourselves from dependency on dictators, autocrats and expansionist regimes all over the planet.
Renewables and other low-carbon energy sources are not just good climate sense. They are also good political sense.
Renewables and other low-carbon energy sources are not just good climate sense. They are also good political sense.
Reposted by Bob Mayo
It sounds like the Bay Area Air
Quality Managment District is on track to end the installation of new fossil fuel burning residential hot water and space heating systems in 2027 and 2029 respectively.
www.paloaltoonline.com/blogs/a-new-...
Quality Managment District is on track to end the installation of new fossil fuel burning residential hot water and space heating systems in 2027 and 2029 respectively.
www.paloaltoonline.com/blogs/a-new-...
Blog: Electric Water Heaters Will Soon Be The New Normal
Electric water heaters will soon be the standard replacement for Bay Area residences. But there will be some exceptions.
www.paloaltoonline.com
December 31, 2025 at 11:29 PM
It sounds like the Bay Area Air
Quality Managment District is on track to end the installation of new fossil fuel burning residential hot water and space heating systems in 2027 and 2029 respectively.
www.paloaltoonline.com/blogs/a-new-...
Quality Managment District is on track to end the installation of new fossil fuel burning residential hot water and space heating systems in 2027 and 2029 respectively.
www.paloaltoonline.com/blogs/a-new-...
Reposted by Bob Mayo
New paper! Heat-pump water heaters could cut energy costs and pollution, but installs often require 💰 electrical work to accommodate backup resistance heat. My student Levi Premer developed prediction and control software to eliminate the need for backup heat and ⬆️ efficiency and flexibility. 🧵1/
November 4, 2025 at 4:28 PM
New paper! Heat-pump water heaters could cut energy costs and pollution, but installs often require 💰 electrical work to accommodate backup resistance heat. My student Levi Premer developed prediction and control software to eliminate the need for backup heat and ⬆️ efficiency and flexibility. 🧵1/
Reposted by Bob Mayo
China uses green tech dominance to take early lead in clean fuels race. #Envision one of the largest #windturbine manufacturers is using #windenergy to produce green #ammonia, selling it for use in fertilisers and chemicals and as a fuel for #shipping www.ft.com/content/7728... via @FT #ActOnClimate
China uses green tech dominance to take early lead in clean fuels race
Companies use wind and solar energy to produce green ammonia and methanol
www.ft.com
December 29, 2025 at 10:04 AM
China uses green tech dominance to take early lead in clean fuels race. #Envision one of the largest #windturbine manufacturers is using #windenergy to produce green #ammonia, selling it for use in fertilisers and chemicals and as a fuel for #shipping www.ft.com/content/7728... via @FT #ActOnClimate
Reposted by Bob Mayo
I'm curious how it's going with SolarApp+, in terms of time and cost. The App improves the process, but I think we can do better.
It's also a problem with electrification of appliances, so I'm proposing some reforms of the permit process for heat pumps as well.
It's also a problem with electrification of appliances, so I'm proposing some reforms of the permit process for heat pumps as well.
December 28, 2025 at 2:17 AM
I'm curious how it's going with SolarApp+, in terms of time and cost. The App improves the process, but I think we can do better.
It's also a problem with electrification of appliances, so I'm proposing some reforms of the permit process for heat pumps as well.
It's also a problem with electrification of appliances, so I'm proposing some reforms of the permit process for heat pumps as well.
Reposted by Bob Mayo
Listening to Saul on Volts comparing AUS vs US rooftop solar was painfully familiar. In AUS he got 5 quotes in 2 days + permit/interconnect in ~24h; here we’re DIY’ing our roof (with help from Bluesky friends like @commercialsolarguy.com) and permit review loop is the biggest bottleneck
Today on Volts: you've probably heard that Australia has cheap rooftop solar power. You've probably also heard some rumors & myths about it. (Is it destabilizing the grid?) I called my favorite Australian energy expert to clear it all up. This is a fun one!
www.volts.wtf/p/whats-the-...
www.volts.wtf/p/whats-the-...
What's the real story with Australian rooftop solar?
Saul Griffith joins me to debunk the myths surrounding Australia's massive influx of solar energy.
www.volts.wtf
December 27, 2025 at 6:35 PM
Listening to Saul on Volts comparing AUS vs US rooftop solar was painfully familiar. In AUS he got 5 quotes in 2 days + permit/interconnect in ~24h; here we’re DIY’ing our roof (with help from Bluesky friends like @commercialsolarguy.com) and permit review loop is the biggest bottleneck
I do not find the word 'climate' in this story.
www.bloomberg.com/features/202...
www.bloomberg.com/features/202...
Gen-Z Revolts Against ‘Dystopian Future’ as Protests Sweep the Globe
Mass movements have ousted leaders and disrupted governments worldwide. Bloomberg Economics examines what countries may face unrest in 2026
www.bloomberg.com
December 27, 2025 at 5:39 PM
I do not find the word 'climate' in this story.
www.bloomberg.com/features/202...
www.bloomberg.com/features/202...
Reposted by Bob Mayo
Today on Volts: you've probably heard that Australia has cheap rooftop solar power. You've probably also heard some rumors & myths about it. (Is it destabilizing the grid?) I called my favorite Australian energy expert to clear it all up. This is a fun one!
www.volts.wtf/p/whats-the-...
www.volts.wtf/p/whats-the-...
What's the real story with Australian rooftop solar?
Saul Griffith joins me to debunk the myths surrounding Australia's massive influx of solar energy.
www.volts.wtf
December 26, 2025 at 6:56 PM
Today on Volts: you've probably heard that Australia has cheap rooftop solar power. You've probably also heard some rumors & myths about it. (Is it destabilizing the grid?) I called my favorite Australian energy expert to clear it all up. This is a fun one!
www.volts.wtf/p/whats-the-...
www.volts.wtf/p/whats-the-...
So now we have to worry about tornados in the Bay Area. Is there something about our topography that means we get more tornadoes due to climate change? I wonder how bad it will get. Basements are rare here, and tornado shelters are nonexistent.
December 27, 2025 at 6:05 AM
So now we have to worry about tornados in the Bay Area. Is there something about our topography that means we get more tornadoes due to climate change? I wonder how bad it will get. Basements are rare here, and tornado shelters are nonexistent.
Reposted by Bob Mayo
At The Big Green Machine, my @wellesley.edu students and I are tracking more than 600 clean energy manufacturing projects in North America.
Check out our interactive dashboard and access our full dataset. Let us know what is missing, wrong, or needs updating. 🔌💡
www.the-big-green-machine.com
Check out our interactive dashboard and access our full dataset. Let us know what is missing, wrong, or needs updating. 🔌💡
www.the-big-green-machine.com
December 23, 2025 at 6:06 PM
At The Big Green Machine, my @wellesley.edu students and I are tracking more than 600 clean energy manufacturing projects in North America.
Check out our interactive dashboard and access our full dataset. Let us know what is missing, wrong, or needs updating. 🔌💡
www.the-big-green-machine.com
Check out our interactive dashboard and access our full dataset. Let us know what is missing, wrong, or needs updating. 🔌💡
www.the-big-green-machine.com
Reposted by Bob Mayo
45. Specifically, we've decoupled economic growth from fossil energy consumption. Coal demand has collapsed. Oil use is flat. Natural gas use is growing but < GDP, even as standards of living have gone up. That's happened because of higher efficiency and decarbonization.
December 20, 2025 at 5:29 PM
45. Specifically, we've decoupled economic growth from fossil energy consumption. Coal demand has collapsed. Oil use is flat. Natural gas use is growing but < GDP, even as standards of living have gone up. That's happened because of higher efficiency and decarbonization.
Reposted by Bob Mayo
Electrification is to fossil fuels as cell phones are to antique wired telephones. The oil oligarchy and their politicians are keeping us using wired telephones. Do you want to stay there?
electrifynow.net/campaigns/vi...
electrifynow.net/campaigns/vi...
Is the age of combustion coming to an end?
Over the last 100 years, electric technologies have evolved to capture, store and utilize energy from the sun and wind. Those technologies are now combining, scaling and rapidly replacing combustion fuels and combustion-powered devices, creating a global energy revolution. This rapid, disruptive growth points to the demise of combustion energy sectors in our lifetimes.
electrifynow.net
December 19, 2025 at 4:53 AM
Electrification is to fossil fuels as cell phones are to antique wired telephones. The oil oligarchy and their politicians are keeping us using wired telephones. Do you want to stay there?
electrifynow.net/campaigns/vi...
electrifynow.net/campaigns/vi...
Hey @nbcbayarea.com , I appreciate your segment on EVs but it’s really odd when you use stock footage of obsolete models. You wouldn’t cover the latest iPhone news with footage of a flip phone.
December 17, 2025 at 10:10 PM
Hey @nbcbayarea.com , I appreciate your segment on EVs but it’s really odd when you use stock footage of obsolete models. You wouldn’t cover the latest iPhone news with footage of a flip phone.
Reposted by Bob Mayo
This is the fossil fuel industry spraypainting the lens on the security cameras while they carry off the heist
www.usatoday.com/story/news/p...
www.usatoday.com/story/news/p...
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
www.usatoday.com
December 17, 2025 at 3:16 AM
This is the fossil fuel industry spraypainting the lens on the security cameras while they carry off the heist
www.usatoday.com/story/news/p...
www.usatoday.com/story/news/p...
Reposted by Bob Mayo
Using a heat pump dryer/washer combo is an awesome way to help simplify electrification projects! Though I am increasingly an advocate of avoiding heat kits if possible in Canada to minimize peak load.
We took great pleasure in being able to free up our 240V dryer breaker for heatpump heat kit capacity.
December 17, 2025 at 1:44 AM
Using a heat pump dryer/washer combo is an awesome way to help simplify electrification projects! Though I am increasingly an advocate of avoiding heat kits if possible in Canada to minimize peak load.
Reposted by Bob Mayo
I don’t have a great baseline of what our electric 240V dryer + washer used to pull, but I was pretty surprised to see our #heatpump combo washer/dryer only uses $0.25 cents per load in electricity. And eliminated a building envelope penetration further improving our heating load.
#energysky
#energysky
December 17, 2025 at 1:02 AM
I don’t have a great baseline of what our electric 240V dryer + washer used to pull, but I was pretty surprised to see our #heatpump combo washer/dryer only uses $0.25 cents per load in electricity. And eliminated a building envelope penetration further improving our heating load.
#energysky
#energysky
Reposted by Bob Mayo
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Trump moves to dismantle major US climate research center in Colorado
The Trump administration is breaking up the National Center for Atmospheric Research, taking aim at one of the world's leading climate research labs.
bit.ly
December 17, 2025 at 1:16 AM
Exclusive: The Trump administration is moving to dismantle the National Center for Atmospheric Research in Colorado, according to a senior White House official, taking aim at one of the world's leading climate research labs.
Reposted by Bob Mayo
"A new study links gas and propane stove emissions to asthma, lung cancer, and other health risks. Transitioning to electric could reduce exposure by over 50%." news.stanford.edu/stories/2025... via @woods.stanford.edu 🔌💡
Switching to electric stoves can dramatically cut indoor air pollution
A new study links gas and propane stove emissions to asthma and other health risks. Transitioning to electric could reduce exposure by over 50%.
news.stanford.edu
December 12, 2025 at 11:00 PM
"A new study links gas and propane stove emissions to asthma, lung cancer, and other health risks. Transitioning to electric could reduce exposure by over 50%." news.stanford.edu/stories/2025... via @woods.stanford.edu 🔌💡
Reposted by Bob Mayo
‘PG&E said at 7:35 a.m., it was notified that a third-party construction crew had damaged an underground gas line while digging, and it dispatched crews to the scene. PG&E workers isolated damaged line & stopped the flow of gas by 9:25 a.m..
Minutes later, at 9:35 a.m., the explosion happened.
Minutes later, at 9:35 a.m., the explosion happened.
December 12, 2025 at 12:21 AM
‘PG&E said at 7:35 a.m., it was notified that a third-party construction crew had damaged an underground gas line while digging, and it dispatched crews to the scene. PG&E workers isolated damaged line & stopped the flow of gas by 9:25 a.m..
Minutes later, at 9:35 a.m., the explosion happened.
Minutes later, at 9:35 a.m., the explosion happened.
Reposted by Bob Mayo
It is amazing that piping flammable gasses into places we sleep somehow became normal.
December 12, 2025 at 1:16 AM
It is amazing that piping flammable gasses into places we sleep somehow became normal.
As a survivor of windmill cancer, I should be allowed to watch TV at night and drive any car I like.
December 12, 2025 at 3:58 AM
As a survivor of windmill cancer, I should be allowed to watch TV at night and drive any car I like.
Reposted by Bob Mayo
California has long been ahead of the home decarbonization game.
Its latest move: local building codes that incentivize switching from air conditioners to heat pumps.
Here's @emilypont.bsky.social with the story:
heatmap.news/politics/cal...
Its latest move: local building codes that incentivize switching from air conditioners to heat pumps.
Here's @emilypont.bsky.social with the story:
heatmap.news/politics/cal...
California’s Latest Climate Gambit: Turn Air Conditioners Into Heat Pumps
Cities across the state are adopting building codes that heavily incentivize homeowners to make the switch.
heatmap.news
December 10, 2025 at 7:39 PM
California has long been ahead of the home decarbonization game.
Its latest move: local building codes that incentivize switching from air conditioners to heat pumps.
Here's @emilypont.bsky.social with the story:
heatmap.news/politics/cal...
Its latest move: local building codes that incentivize switching from air conditioners to heat pumps.
Here's @emilypont.bsky.social with the story:
heatmap.news/politics/cal...