Hartmut Winkler
@hwinkler.bsky.social
Energy analyst and astrophysicist at the University of Johannesburg
Comments, news and info sharing on:
Renewables🌞, nuclear☢️, electricity💡
Focus: South Africa🇿🇦
Comments, news and info sharing on:
Renewables🌞, nuclear☢️, electricity💡
Focus: South Africa🇿🇦
Pinned
Hartmut Winkler
@hwinkler.bsky.social
· Nov 18
Regularly updated technical details of South(ern) African power plants - focus is on solar - on my website hawiknowledge.org/index.html . Also has links to my articles and some interviews
Reposted by Hartmut Winkler
ASEAN is emerging as a leader in transport electrification, with rapidly rising EV shares now outpacing legacy auto markets.
🇻🇳 Viet Nam: 38% of new car sales in 2025, double of 2024’s
🇸🇬 Singapore: 45%
🇹🇭 Thailand: 21%
🇮🇩 Indonesia: 15%
https://loom.ly/pMmY5Y8
🇻🇳 Viet Nam: 38% of new car sales in 2025, double of 2024’s
🇸🇬 Singapore: 45%
🇹🇭 Thailand: 21%
🇮🇩 Indonesia: 15%
https://loom.ly/pMmY5Y8
December 18, 2025 at 3:00 AM
ASEAN is emerging as a leader in transport electrification, with rapidly rising EV shares now outpacing legacy auto markets.
🇻🇳 Viet Nam: 38% of new car sales in 2025, double of 2024’s
🇸🇬 Singapore: 45%
🇹🇭 Thailand: 21%
🇮🇩 Indonesia: 15%
https://loom.ly/pMmY5Y8
🇻🇳 Viet Nam: 38% of new car sales in 2025, double of 2024’s
🇸🇬 Singapore: 45%
🇹🇭 Thailand: 21%
🇮🇩 Indonesia: 15%
https://loom.ly/pMmY5Y8
Reposted by Hartmut Winkler
In Germany the only source of electricity that keeps growing and growing: renewable energy.
Solar and wind keep expanding and even though nuclear is no more coal generation has already shrunk significantly and keeps falling.
Solar and wind keep expanding and even though nuclear is no more coal generation has already shrunk significantly and keeps falling.
December 10, 2025 at 7:47 AM
In Germany the only source of electricity that keeps growing and growing: renewable energy.
Solar and wind keep expanding and even though nuclear is no more coal generation has already shrunk significantly and keeps falling.
Solar and wind keep expanding and even though nuclear is no more coal generation has already shrunk significantly and keeps falling.
www.dailymaverick.co.za/opinionista/...
This is powerful stuff. Remarkably restrained under extreme provocation. I would have just given Rubio the middle finger
This is powerful stuff. Remarkably restrained under extreme provocation. I would have just given Rubio the middle finger
‘We do not seek your approval for our path’ — Ronald Lamola replies to Marco Rubio | Daily Maverick
This is an open letter by International Relations Minister Ronald Lamola to a Substack post by US Secretary of State Marco Rubio.
www.dailymaverick.co.za
December 4, 2025 at 8:37 PM
www.dailymaverick.co.za/opinionista/...
This is powerful stuff. Remarkably restrained under extreme provocation. I would have just given Rubio the middle finger
This is powerful stuff. Remarkably restrained under extreme provocation. I would have just given Rubio the middle finger
Reposted by Hartmut Winkler
When it saves you money to put solar on your roof, you put solar on your roof. Does it make the utility owners angry. It sure does.
This is remarkable and happened very very fast.
This is remarkable and happened very very fast.
Pakistan says rooftop solar output to exceed grid demand in some hubs next year
Pakistan's rooftop solar generation will for the first time exceed power demand on the country's electrical grid during daytime hours in some major industrial regions next year, a senior government of...
www.reuters.com
December 1, 2025 at 10:55 PM
When it saves you money to put solar on your roof, you put solar on your roof. Does it make the utility owners angry. It sure does.
This is remarkable and happened very very fast.
This is remarkable and happened very very fast.
Important for everyone set their phones to minimize the options that the tech bros have to spy on you and make money off you. Also helps in general fight against scams
EFF is helping you reclaim your privacy by:
🐾 Ending online tracking without consent
🗺️ Getting location tracking off the map
😡 Blocking behavioral advertising
Learn more—Take Back CTRL today: takebackctrl.org/reclaim-you...
🐾 Ending online tracking without consent
🗺️ Getting location tracking off the map
😡 Blocking behavioral advertising
Learn more—Take Back CTRL today: takebackctrl.org/reclaim-you...
November 30, 2025 at 2:58 AM
Important for everyone set their phones to minimize the options that the tech bros have to spy on you and make money off you. Also helps in general fight against scams
Reposted by Hartmut Winkler
Utility-scale #solar projects helped increase UK deployed capacity by almost 2 GW in the 12 months, including connection of 373 MW Cleve Hill Solar Farm – largest operational UK solar farm to date.
www.pv-magazine.com/2025/11/27/u...
www.pv-magazine.com/2025/11/27/u...
UK adds 1.9 GW of solar in 12 months
Latest government figures record 20.7 GW deployed PV capacity at the end of October 2025, up 10.4% in a 12-month period. Surge in contracts for difference (CfD) supported connections recorded in 2025 ...
www.pv-magazine.com
November 28, 2025 at 12:17 PM
Utility-scale #solar projects helped increase UK deployed capacity by almost 2 GW in the 12 months, including connection of 373 MW Cleve Hill Solar Farm – largest operational UK solar farm to date.
www.pv-magazine.com/2025/11/27/u...
www.pv-magazine.com/2025/11/27/u...
Reposted by Hartmut Winkler
Solar capacity is expected to triple based on new projects in the pipeline.
Total global solar capacity, including all projects in construction and planned, is expected to reach almost 3 terawatts, with 80% concentrated in just 15 countries.
Data @globalenergymon.bsky.social
Total global solar capacity, including all projects in construction and planned, is expected to reach almost 3 terawatts, with 80% concentrated in just 15 countries.
Data @globalenergymon.bsky.social
November 21, 2025 at 6:51 AM
Solar capacity is expected to triple based on new projects in the pipeline.
Total global solar capacity, including all projects in construction and planned, is expected to reach almost 3 terawatts, with 80% concentrated in just 15 countries.
Data @globalenergymon.bsky.social
Total global solar capacity, including all projects in construction and planned, is expected to reach almost 3 terawatts, with 80% concentrated in just 15 countries.
Data @globalenergymon.bsky.social
Reposted by Hartmut Winkler
By Oct 2025, India has deployed 25 GW of new solar capacity -- matching 2024's total additions ☀️
Meanwhile, coal is entering a new phase as plant load factors keep falling, making them costlier and more challenging to operate flexibly.
https://loom.ly/VL2gJZ0
Meanwhile, coal is entering a new phase as plant load factors keep falling, making them costlier and more challenging to operate flexibly.
https://loom.ly/VL2gJZ0
Renewable is elbowing out coal: Can it continue the growth momentum?
The whole power universe seems to be favouring the growth momentum of renewable energy (RE)...
carboncopy.info
November 19, 2025 at 4:00 AM
By Oct 2025, India has deployed 25 GW of new solar capacity -- matching 2024's total additions ☀️
Meanwhile, coal is entering a new phase as plant load factors keep falling, making them costlier and more challenging to operate flexibly.
https://loom.ly/VL2gJZ0
Meanwhile, coal is entering a new phase as plant load factors keep falling, making them costlier and more challenging to operate flexibly.
https://loom.ly/VL2gJZ0
Reposted by Hartmut Winkler
California is rocking renewables hard.🔋🌞 17 GW of battery storage now online — a 13× boom in five years, half of all US BESS capacity. Solar + storage have already erased 37% of fossil gas from the grid and killed the blackout era. This is the future hitting in real time.
latimes.com/environment/st…
latimes.com/environment/st…
November 16, 2025 at 11:07 AM
California is rocking renewables hard.🔋🌞 17 GW of battery storage now online — a 13× boom in five years, half of all US BESS capacity. Solar + storage have already erased 37% of fossil gas from the grid and killed the blackout era. This is the future hitting in real time.
latimes.com/environment/st…
latimes.com/environment/st…
Reposted by Hartmut Winkler
The #InternationalEnergyAgency’s flagship report 📘 says the rise in low-carbon #electricity ⚡ will make the clean energy #transition ‘inevitable’ ♻️✨, despite President Trump’s calls 🇺🇸 to carry on drilling ⛽🛢️.
Supply boom in cheaper renewables will seal end of fossil fuel era, says IEA
Watchdog’s flagship report says rise in low-carbon electricity will make transition ‘inevitable’, despite Trump’s calls to carry on drilling
www.theguardian.com
November 15, 2025 at 10:57 PM
The #InternationalEnergyAgency’s flagship report 📘 says the rise in low-carbon #electricity ⚡ will make the clean energy #transition ‘inevitable’ ♻️✨, despite President Trump’s calls 🇺🇸 to carry on drilling ⛽🛢️.
Reposted by Hartmut Winkler
The hype behind #nuclear energy doesn't match the reality
Nuclear energy will not solve #climate change
iai.tv/articles/the...
Nuclear energy will not solve #climate change
iai.tv/articles/the...
The hype behind nuclear energy doesn't match the reality
Nuclear power is often promoted as a solution for climate change and rising energy demand from data centers—but the facts tell a different story. This article explores why nuclear energy is in global ...
iai.tv
November 15, 2025 at 10:43 AM
The hype behind #nuclear energy doesn't match the reality
Nuclear energy will not solve #climate change
iai.tv/articles/the...
Nuclear energy will not solve #climate change
iai.tv/articles/the...
Reposted by Hartmut Winkler
Global #solar generation has grown exponentially since the #ParisAgreement, DOUBLING every 3 years ☀️
Solar share rose from generating 1% of global power in 2015 to 8.8% in the first half of 2025 📈
Emerging economies are now leading the growth 🧵 1/7
ember-energy.org/lat...
Solar share rose from generating 1% of global power in 2015 to 8.8% in the first half of 2025 📈
Emerging economies are now leading the growth 🧵 1/7
ember-energy.org/lat...
November 15, 2025 at 12:00 PM
Global #solar generation has grown exponentially since the #ParisAgreement, DOUBLING every 3 years ☀️
Solar share rose from generating 1% of global power in 2015 to 8.8% in the first half of 2025 📈
Emerging economies are now leading the growth 🧵 1/7
ember-energy.org/lat...
Solar share rose from generating 1% of global power in 2015 to 8.8% in the first half of 2025 📈
Emerging economies are now leading the growth 🧵 1/7
ember-energy.org/lat...
Reposted by Hartmut Winkler
Africa’s solar panel imports SURGED by 60% in the last 12 months☀️
While South Africa led the 2023 rise in solar panel imports, 20 other countries are also growing their solar capacity in 2025 📈
#COP30 can use this momentum to move the African #energytransition further
https://loom.ly/RexuKOw
While South Africa led the 2023 rise in solar panel imports, 20 other countries are also growing their solar capacity in 2025 📈
#COP30 can use this momentum to move the African #energytransition further
https://loom.ly/RexuKOw
November 15, 2025 at 4:02 PM
Africa’s solar panel imports SURGED by 60% in the last 12 months☀️
While South Africa led the 2023 rise in solar panel imports, 20 other countries are also growing their solar capacity in 2025 📈
#COP30 can use this momentum to move the African #energytransition further
https://loom.ly/RexuKOw
While South Africa led the 2023 rise in solar panel imports, 20 other countries are also growing their solar capacity in 2025 📈
#COP30 can use this momentum to move the African #energytransition further
https://loom.ly/RexuKOw
Reposted by Hartmut Winkler
The most important thing I read at 14 after being raised in a Christian house.
Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.
—BUDDHA
Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.
—BUDDHA
November 6, 2025 at 9:46 PM
The most important thing I read at 14 after being raised in a Christian house.
Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.
—BUDDHA
Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.
—BUDDHA
Reposted by Hartmut Winkler
We often forget how far we have come: Today almost 3/4 of EU electricity generation is from non-fossil energy sources.
It is not long ago that fossil fuels dominated the EU's electricity mix.
This year their share is approaching 1/4 of EU electricity generation.
Source is @ember-energy.org
It is not long ago that fossil fuels dominated the EU's electricity mix.
This year their share is approaching 1/4 of EU electricity generation.
Source is @ember-energy.org
November 7, 2025 at 2:19 PM
We often forget how far we have come: Today almost 3/4 of EU electricity generation is from non-fossil energy sources.
It is not long ago that fossil fuels dominated the EU's electricity mix.
This year their share is approaching 1/4 of EU electricity generation.
Source is @ember-energy.org
It is not long ago that fossil fuels dominated the EU's electricity mix.
This year their share is approaching 1/4 of EU electricity generation.
Source is @ember-energy.org
Reposted by Hartmut Winkler
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
China’s clean-energy revolution will reshape markets and politics
The world’s biggest manufacturer now has an interest in the world decarbonising
www.economist.com
November 7, 2025 at 11:05 AM
The US is the world's largest oil and gas producer. Yet, "China is now making more money from exporting green technology than America makes from exporting fossil fuels."
Reposted by Hartmut Winkler
www.news24.com/business/cli...
This is not going to happen, but the nuclear, gas and coal lobbies will be celebrating as it stalls their otherwise imminent demise. The solar targets are far too modest given the trend elsewhere in the world and South Africa's superb solar potential
This is not going to happen, but the nuclear, gas and coal lobbies will be celebrating as it stalls their otherwise imminent demise. The solar targets are far too modest given the trend elsewhere in the world and South Africa's superb solar potential
SA goes for gas, nuclear: Ramokgopa unveils big electricity shift | News24
South Africa plans to ramp up electricity generation from gas and nuclear dramatically in the next 15 years, Electricity and Energy Minister Kgosientsho Ramokgopa announced on Sunday.
www.news24.com
October 19, 2025 at 1:54 PM
www.news24.com/business/cli...
This is not going to happen, but the nuclear, gas and coal lobbies will be celebrating as it stalls their otherwise imminent demise. The solar targets are far too modest given the trend elsewhere in the world and South Africa's superb solar potential
This is not going to happen, but the nuclear, gas and coal lobbies will be celebrating as it stalls their otherwise imminent demise. The solar targets are far too modest given the trend elsewhere in the world and South Africa's superb solar potential
Reposted by Hartmut Winkler
#China #nuclear power generation increased by 3.7 % but its share of total electricity output slipped for third year in a row to 4.5 %. While nuclear capacity grew by 3.5 GW, #solar capacity grew by 278 GW.
#climate #renewables
www.worldnuclearreport.org/IMG/pdf/wnis...
#climate #renewables
www.worldnuclearreport.org/IMG/pdf/wnis...
www.worldnuclearreport.org
October 11, 2025 at 10:37 AM
#China #nuclear power generation increased by 3.7 % but its share of total electricity output slipped for third year in a row to 4.5 %. While nuclear capacity grew by 3.5 GW, #solar capacity grew by 278 GW.
#climate #renewables
www.worldnuclearreport.org/IMG/pdf/wnis...
#climate #renewables
www.worldnuclearreport.org/IMG/pdf/wnis...
Reposted by Hartmut Winkler
MILESTONE | This September, EU solar generation already surpassed 2024's total.
In the whole of 2024, solar generated 301 TWh of EU power. By September 2025, it reached 312 TWh.
Get the latest data updates via Ember’s data explorer 🔍
https://ember-energy.org/data/electricity-data-explorer/
In the whole of 2024, solar generated 301 TWh of EU power. By September 2025, it reached 312 TWh.
Get the latest data updates via Ember’s data explorer 🔍
https://ember-energy.org/data/electricity-data-explorer/
October 11, 2025 at 10:00 AM
MILESTONE | This September, EU solar generation already surpassed 2024's total.
In the whole of 2024, solar generated 301 TWh of EU power. By September 2025, it reached 312 TWh.
Get the latest data updates via Ember’s data explorer 🔍
https://ember-energy.org/data/electricity-data-explorer/
In the whole of 2024, solar generated 301 TWh of EU power. By September 2025, it reached 312 TWh.
Get the latest data updates via Ember’s data explorer 🔍
https://ember-energy.org/data/electricity-data-explorer/
Reposted by Hartmut Winkler
Profs Amory Lovins, Mark Jacobson, Steve Thomas and me.
#nuclear #renewables #climate #SMR #Trump #Starmer
www.newcivilengineer.com/opinion/a-go...
#nuclear #renewables #climate #SMR #Trump #Starmer
www.newcivilengineer.com/opinion/a-go...
A ‘Golden Age’ of nuclear? | New Civil Engineer
The reason is simple. Nuclear costs are huge and rising and significant delays are the norm. The result is that nuclear power faces the same fundamental
www.newcivilengineer.com
October 11, 2025 at 10:10 AM
Profs Amory Lovins, Mark Jacobson, Steve Thomas and me.
#nuclear #renewables #climate #SMR #Trump #Starmer
www.newcivilengineer.com/opinion/a-go...
#nuclear #renewables #climate #SMR #Trump #Starmer
www.newcivilengineer.com/opinion/a-go...
Reposted by Hartmut Winkler
#France #EDF Flamanville #nuclear EPR reactor started up Dec 2024, 12 years later than planned, at a cost of US$25.6 billion, a staggering sixfold increase over the original US$4.3 billion estimate.
www.worldnuclearreport.org/IMG/pdf/wnis...
www.worldnuclearreport.org/IMG/pdf/wnis...
www.worldnuclearreport.org
October 11, 2025 at 10:40 AM
#France #EDF Flamanville #nuclear EPR reactor started up Dec 2024, 12 years later than planned, at a cost of US$25.6 billion, a staggering sixfold increase over the original US$4.3 billion estimate.
www.worldnuclearreport.org/IMG/pdf/wnis...
www.worldnuclearreport.org/IMG/pdf/wnis...
Reposted by Hartmut Winkler
China cleantech is shaping Africa's energy🌍
In August, for the first time, Africa imported more $ of EV's from China than it did solar panels🚗🚗🚗
In August, for the first time, Africa imported more $ of EV's from China than it did solar panels🚗🚗🚗
October 6, 2025 at 4:13 PM
China cleantech is shaping Africa's energy🌍
In August, for the first time, Africa imported more $ of EV's from China than it did solar panels🚗🚗🚗
In August, for the first time, Africa imported more $ of EV's from China than it did solar panels🚗🚗🚗