Dr Christopher T M Clack, PhD @DrChrisClack Twitter profile

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Dr Christopher T M Clack, PhD

4 years

Just a timely reminder, we can solve #ClimateChange . We only need two components for removing all #energy #emissions . They are just complex:

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 month

It’s finally over. @StanfordEnergy #lawsuit #cleanenergy #vindication

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

🚨Personal News🚨 Today at 14:15 my wife and I became #US citizens. We have now registered to #vote . It's a date we will not forget. Staying to participate in our country as #Immigration makes us stronger!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Jacobson was ordered to pay $428K in legal fees to @PNASNews . He already paid my $75K in fees. He lost the case on every single argument. Now a CA court apparently says @Stanford must pay his fees for him. Our paper still stands. @KenCaldeira @MBazilian @PauliJllo @SteveDavisUCI

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Unpopular fact: Retiring the existing #nuclear fleet (58 power plants) in the #US would be the *same* as removing ALL wind, solar, geothermal, hydroelectric and other renewables from the grid (2020 values). Effectively halving the clean electricity being produced.

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

How was your Earth day? Mine was pretty awesome. Introducing my new daughter. Wife did amazing as usual. All home and healthy. Less tweeting for a while. One photo of my toddler waiting for his baby sister!!

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 months

About bloody time! #courts #decision

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 months

What a quote!

Dr Christopher T M Clack, PhD

@DrChrisClack

3 months

About bloody time! #courts #decision

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Some personal news: Welcome to the world, Archer Axton Clack. Born 5:37am on June 19th, 2019. He is 6lb 1oz. He is incredible. He made his mum work incredibly hard, but she managed to bring him safely into our lives.

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Now over 11 days on the GB grid without any coal whatsoever. This transition off of coal has been incredible. I know there will likely be hours of coal on the grid this year coming up, but still. Remarkable!

Coal - GB Grid

@UK_Coal

5 years

GB National Grid: #Coal is currently generating 0.00GW (0.00%) out of a total of 34.82GW Continuous hours without coal: 265 (11 Days 1 Hour)

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

I see a lot of twitter with the phrases "lowest cost electricity" and then use LCOE as the basis for that. From our work, we find lowest cost at source is not usually anywhere close to the lowest cost for a system. It matters when and where the electricity is produced!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

I absolutely love our #heatpump #dryer . Saves money, dries clothes and recycles the water (instead of venting outside with your heat). #cleanenergy #future #electrification

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

The evolution of the #UK #electricity #grid from January 1st 2012, midnight to May 18th 2018, midnight. Represented in 5-minute intervals for main technologies (Coal, Natural Gas, Nuclear, Renewables). Share totals to 100%. Import / Exports included. 1/

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Look @ this chart. Look @ IT! First coal free day 2017. Now a continuous coal free period stretching 16.5% of the year. Oh and for those who think its all gas. Renewables have produced more than ALL fossil fuels this year. Nuclear is second. This is how quickly change can happen.

Simon King

@SimonOKing

4 years

Britain has been coal free now for 60 days ⬇️ This graphic from @guardian really shows how stark that is...

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Good. About time! Four years wasted. Luckily I and my team @VibrantCE have done many studies in the meantime moving the science and deployments forward! Onwards.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Today my team release a report showing how #Colorado could #decarbonize the #economy while saving money for #consumers . Check it out!

Vibrant Clean Energy

@VibrantCE

4 years

NEW STUDY ALERT: Colorado Electrification & Decarbonization Study (reduces economy-wide GHG by 70% by 2040, and lowers electricity rates by 15%) -

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 year

Now what if, hear me out, we build a #national #hvdc backbone to support the huge amount of #renewables , #hydrogen , and #electrification that will come with the #ira bill?! I think it could be a pretty good investment! #climatechange #policy

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

If you want the renewables, you must learn to deal with the transmission. Sorry, not sorry!

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Oh dear. If this is what people “in the know think”, we really are doomed. Have issues/problems/objections with different technologies, but don’t make up ones that are not real. ALL energy production has consequences that are not wanted. Tradeoff to alternatives matter. And CO2.

NaomiOreskes

@NaomiOreskes

5 years

This is so important: a reminder that nuclear power is not renewable, because of the huge water demands. @mzjacobson @MichaelEMann @ErikMConway @ClimateOpp @DoMoisan And as the climate heats up, those demands will increase.

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 year

Yeah, bt what if we cld have a ~70 node, ~210 line UG HVDC trans. overlay for CONUS? Cost ~$400 bn (or $35 bn/yr or $7.5/MWh). It wld save 4.5 Gt of GHG emissions by 2050 & enable reduced electricity costs of $25/MWh. #climatechange #cleanenergy #UGHVDC #justsaying #permitting

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 year

Why #transmission is so important to the #electricity #grid . Remember the #synopticscales . It is large and we must interconnect regions together for these #regular events! Look at the difference between the east & west for next week! We need to connect them!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Am I misreading this graph? It looks like an average of 100% over a week, not run on 100%. So relying on fossil fuels (from imports)? These are two massively different things. Having 100% average is way easier. Great news that it happened for sure though! #justchecking

Assaad Razzouk

@AssaadRazzouk

2 years

World record: South Australia (population 1.8m) runs for a week on 100% renewable energy, a record for similar energy grids anywhere Don't believe Big Oil (and politicians in their pockets) when they say 100% renewables can't be done #climate

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Looks like the #TongaVolcano released ~400 kt of SO2. 40x less than #pinatubo . Of course, we shld wait 4 more data, but early indications Looks like #climate impacts will be relatively small. Hope all are safe near the eruption. Source for Pinatubo SO2:

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

ZBF release finally draws closer (). We have been working to get the data/report out & understandable. Here is a short thread with some interesting observations that we made. First, here is a cheat sheet for our scenarios (a wide spread of possibilities)

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

I think this take is wrong. H2 will probably be critical because it can be used for much more than electricity. We need more work to get better at creating and string (and transport), but will be needed for many feedstocks and possibly ⚡️ generation during stress events.

Sean Casten

@SeanCasten

4 years

OK, so I need to do a brief rant on something hugely important that almost no one cares about. Humor me. To wit: in the absence of an as-yet unidentified break through in storage tech, hydrogen is never going to be anything other than a niche player in energy mkts. Thread:

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

What if there was a pathway for the #US to #decarbonize whole #economy by 2050, #cleanelectricity by 2035 & do this while reducing costs compared with not doing so? Well, good news is there is one, and its coming really soon in #ZBF

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Dr Christopher T M Clack, PhD

@DrChrisClack

9 months

Seems to think #geothermal is a #water resource. By that logic, wouldn't adv nuke, NG w/ CCS or all thermal fall under the same category?! To be clear, I disagree that geo is a water resource. @SenSanders was under the same illusion when we met a few years back... #climatechange

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

New report released by my company - take a read. Removing coal from Colorado is cost effective, reduces emissions, can equitably share cost & benefits, increased jobs and does not harm resource adequacy for the system - nor does CO rely on other states for their electricity.

Vibrant Clean Energy

@VibrantCE

5 years

We released a study today showing that retiring Colorado coal would save money, repay plant debts, reduce CO2, reduce health-harming co-pollutants and increase jobs. Sit down, have a read, and let us know what you think. @CommEnergyInc sponsored the study!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Yup, just a puny ~3,700,000 MW (w/ 4 hrs) of batteries and ~390,000 MW of HVDC and ~5,900,000 MW of generation. I shall just leave this here again (lots of the same issues remain): …

Table of Contents — June 27, 2017, 114 (26) | PNAS

View the Table of Contents for Volume 114, Issue 26

www.pnas.org

The Washington Post

@washingtonpost

2 years

A recent study shows that electricity blackouts can be avoided across the nation — perhaps even during intense weather events — by switching to 100 percent clean and renewable energy, such as solar, wind and water energy.

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Dr Christopher T M Clack, PhD

@DrChrisClack

7 years

We should be aiming for zero emissions instead of 100% RE. #wind #solar #nuclear #hvdc #storage #hydro #geo

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

Some seriously scary graphs here, but I think there is hope too! We need to get off of as much fossil fuels as possible, reduce emissions to atmosphere, build renewables, transmission, storage, and nuclear. We need to do it ASAP!

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

But what if bills are 200% of what they are now, or more. Or what if they lose power much more frequently. I get the public delight for 100% Renewables, but they clearly do not understand what that entails. As in truth the 100% RE people who advocate for it don't either.

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

We have had rooftop PV for 7 yrs now. We have saved 30.7-32.2 metric tons CO2 & 35.1-42.9 MWh of energy used (both net). I factored in manufacture, replaced inverters & @XcelEnergyCO grid over last 7 years. Panels still produce over 99% of 1st year values.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

This is how it should be. Pragmatic and agnostic. Use all tools, and whichever is best will win.

Third Way Climate & Energy

@ThirdWayEnergy

4 years

Last night during the #NY14 debate, @AOC made it clear that the door is open for nuclear energy in the #GreenNewDeal 💯👏 "The GND leaves the door open for nuclear," but community input & vetting new technologies is key. 1/

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

@steren @ChloeZilliac @California_ISO Exporting electricity, so reducing emissions else where (hence negative emissions for California)

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

We are just two hours away from the longest run without coal in GB since 1882!! I think we should make it...

Coal - GB Grid

@UK_Coal

4 years

GB Grid: #Coal is generating 0.00GW (0.00%) out of 21.28GW Continuous time without coal: 18 days 4 hours

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Yup, just a puny ~3,700,000 MW (w/ 4 hrs) of batteries and ~390,000 MW of HVDC and ~5,900,000 MW of generation. I shall just leave this here again (lots of the same issues remain):

Evaluation of a proposal for reliable low-cost grid power with 100% wind, water, and solar |...

A number of analyses, meta-analyses, and assessments, including those performed by the Intergovernmental Panel on Climate Change, the National Ocea...

www.pnas.org

The Washington Post

@washingtonpost

2 years

A recent study shows that electricity blackouts can be avoided across the nation — perhaps even during intense weather events — by switching to 100 percent clean and renewable energy, such as solar, wind and water energy.

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

@curious_founder @JesseJenkins Or even just “air-conditioner” and stop producing air-conditioners as we know them. Absolutely no need to. Why not enforce that all ACs can heat and cool and be done. After all it is conditioning the air!!

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

We find that a very different world can appear by 2050 for the Eastern Interconnection if we electrify transportation and heat. This pathway removes 80% of economy-wide emissions and costs less than alternatives! We don't even need new technologies. Just start today and progress!

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

State of New York just signed death warrants for thousands of people that didn’t need to die. Stupidity!

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

This is what the #wind and #solar resource potential is across the #US based on 5-minute, 3-km data passed through our advanced Solar Irradiance, Solar Power Model or our Wind Power Model. We make the data as accurate as possible. #VCE

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Now, we all know about electrification #energytwitter ; but are you familiar with Heat Pump Clothes Dryers? They use 50-60% less electricity than standard electric ones, and remove the need for an outside vent (making the home more efficient). (image ORNL)

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Why would we want to cede *ALL* the progress made on clean energy? Why not keep them running (if safe) as they are already built and operating (construction carbon already released and can burn weapons)? Seems like a sensible thing to do, since we have to ramp up everything!

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 year

Info for #energytwitter . More #coal plant capacity operates worldwide 2day than #naturalgas plants in ratio of abt 6:5. Moreover, more coal under construction than gas (same ratio). Total worldwide #wind & #solar currently operating would not power just #US electricity.

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Let's start building towards a #cleanenergy & #equitable economy. Just need to retire 16 GW of #coal & 31 GW NG, + add 24 GW #storage , 61 GW #wind , 50 GW #solar & 40 GW of novel tech + 13.5 million MW-miles tx EACH YEAR for next 15 years! @JoeBiden @SenKamalaHarris

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

You just build a natural gas pipeline and put the UG HVDC inside; as we have discussed before in the office ;) The companies can do this. Actually makes the whole thing easier.

Joshua D. Rhodes

@joshdr83

4 years

Ridiculous early morning question, but could underground HVDC power lines be recharacterized as “electricity pipelines” so that FERC could expedite their approval across state lines?

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

As always in these cold snaps, wind out performs in Texas. It’s the physics of the atmosphere, not some surprise. They can freeze (as all things can), but always show up. Need more. Need to think about weather in planning more: WIS:dom @VibrantCE

Joshua D. Rhodes

@joshdr83

3 years

Wind coming in 1,000 MW over forecast, keep spinning!

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Serious question: How do we educate people more to understand how this is a bad decision? What variables do we miss explaining or highlighting or are we missing that explains why decisions that set us back are made; likely in good faith?

Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

State of New York just signed death warrants for thousands of people that didn’t need to die. Stupidity!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Yeah, all great and everything, but you really need to sort the actual bottleneck: installers/contractors. There’s not enough of them currently, how would flooding the market with product help? Just asking sitting here waiting for contractor for HP we purchased 4 months ago…

Noah J. Gordon

@noah_gordon_

2 years

The US is considering using the Defense Production Act to boost production of heat pumps and send them to Europe, where they could reduce need for Russian gas. You love to see it. Reporting by @JStein_WaPo , "Heat Pumps for Freedom" plan by @billmckibben

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Dr Christopher T M Clack, PhD

@DrChrisClack

10 months

All the way to NOPE town. Been shown many times that you need both. They are NOT in direct competition. You need #space and #time storage. Otherwise all shit breaks loose (to be scientific).

Casey Handmer, PhD

@CJHandmer

10 months

Batteries vs Transmission: Beyond the Thunderdome.

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Because it cannot happen without it. It is washed over as not as sexy or call-to-arms as RE or clean is. My mantra: is you love renewables get to liking transmission!

Kevin O'Rourke

@krorourke

5 years

Pretty incredible that every D candidate claims to have a #climate plan but isn’t talking about the main enabling technology, #transmission . There is no future scenario (that I’m aware of) with low-cost renewable energy dominating the grid without a massive transmission build.

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Fun fact, the #MNSmarterGrid study showed that interstate #transmission increases #RenewableEnergy in the eastern grid by 3,000 MW, reduces gas by 5,300 MW, increases batteries by 5,000 MW and keeps costs the SAME.

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

When people tell you that you stated 100% RE impossible in a peer-review journal - um, maybe have a read! True scientists present the facts and evidence from study, not matter how unpopular!

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

@RobertFares Wait, you are saying that just building 3.7 TW with 4 hrs of batteries and 390,000 MW of HVDC and 6 TW of generation for less than 10cent/kWh might not be as easy as they make out? 😂

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Dr Christopher T M Clack, PhD

@DrChrisClack

7 years

How to #transition #US #electric #grid to low-emissions within 15 years. Requires #wind #solar #hydro #nuclear #hvdc

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

I hope you are having a great weekend. Just thought I’d share that One reason people come to #Colorado and do not want to leave is the #beautiful #sunset . #nature

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

Very peculiar to me that w/ everyone so confident that their technology of choice will win out, or lower cost, why are we debating the target? Surely, net zero emissions (all) by 2050 is a common goal. So, let all compete, and as your ones r the best they'll will win - right?

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

It’s almost as if many of us have been saying this for quite a bit. Glad we are seeing some acceptance of this now. Let’s hope it helps slow transition of nuclear to gas!

Union of Concerned Scientists

@UCSUSA

5 years

If nuclear power plants that are unprofitable or scheduled to close are replaced w/natural gas or coal, #GlobalWarming emissions will rise. Temporary financial support may be necessary, given it comes w/strong safety standards and support for renewables.

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

I am thinking it backfired...

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

I suspect that to keep them running as a nation we might need to subsidize them. OK, but why not? It's clean electricity and reduces deadly criteria pollutants.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Indeed! We have been saying for a while, back when it was less popular. Now we need to actually act upon it. Studies we want to do and are doing show massive co-benefits!!

E&E News

@EENewsUpdates

4 years

A coalition of grid companies has fired off a new argument on why green energy advocates should embrace strategic, long-haul, high-voltage transmission lines and why the Federal Energy Regulatory Commission needs to make that happen.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

To provide a little context. 50% of the nitrogen in your body right now has been through the Haber-Bosch process. Almost all of which was produced with natural gas as a feed stock for the hydrogen. That accounts for ~6% of NG use in the world.

Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

I think this take is wrong. H2 will probably be critical because it can be used for much more than electricity. We need more work to get better at creating and string (and transport), but will be needed for many feedstocks and possibly ⚡️ generation during stress events.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Dear #energytwitter #climatetwitter , I will be talking about "Baseload Generation Potential From Combined Wind, Solar and Storage Power Plants in the United States" in #AGU2019 GC23E: Near-Zero Emission Energy Systems. Come on by at 13:55! @KenCaldeira @SteveDavisUCI @VibrantCE

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

It has passed 57 days now folks. Not such big news these days with the horrible situations playing out around the world; but thought I’d share something that is good.

Coal - GB Grid

@UK_Coal

4 years

GB Grid: #Coal is generating 0.00GW (0.00%) out of 21.81GW Continuous time without coal: 57 days

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 months

The morning at the farm!

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

The purpose of an #HVDC super-grid is to make an economic market 4 selling & buying the lowest-cost form of electricity. It has the added benefit of increasing reliability, reducing reserve requirements & reducing emissions. See our peer-reviewed paper:

Tino Link

@tin0link

4 years

"It might kill coal, but the purpose of the DC overlay grid is to move energy and grid reliability services across the country in the most economical way." @DrChrisClack @FannySchlutius @_sabrina_martin @Robert_Sarcevic @MirkoDuesel @Siemens_Energy

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Just like that, a whole new world has started opening up! #COVID19 #vaccinationdone

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Thanks @MLiebreich !

Michael Liebreich

@MLiebreich

4 years

Well this is excellent news. Well done @DrChrisClack , you must be feeling even more vindicated than usual. What a bizarre saga the whole thing has been, and probably quite stressful. All the best, keep up the good work.

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

I think it is usually the inverse. You cannot get serious emissions reductions without electrification. You have to decarbonize the grid at same time, of course. Decarbonizing grid only known way to reduce emissions FAST and at low-cost.

Richard Meyer

@RichardMeyerDC

5 years

The implicit assumption that "electrification" equals "carbon emissions reductions" may not always be correct, either now or in the future.

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

This has always been my point. We CAN (if we want) spend ridiculous amounts on getting CLOSE to 100% rens. Or we can solve climate + health + hunger + many other things for the SAME cost. I think it is morally important to aim to solve as many of the world issues at the same time

Jesse D. Jenkins

@JesseJenkins

6 years

@DrChrisClack Here's the slide from the consulting report. Support drops to ~50% if bills would increase 30% (and presumably falls below that if bill increases were higher). As always, willingness to pay is limited.

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

I think these data points are very interesting & show a great deal about evolving electricity grids & how there is change happening. The numbers don't lie. Emissions have dropped, RE has gone up massively, and nuclear has remained. I thought worthwhile showing! 5/5

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Since the record-breaking 67 days, 22 hours and 55 minutes without coal back in the middle of June, the GB grid has quietly racked up another 46 days and 7 hours (1,111 hours) without coal. The break in the record was not really for any coal generation. Let's keep it tracked!

Coal - GB Grid

@UK_Coal

4 years

GB Grid: #Coal is generating 0.00GW (0.00%) out of 26.42GW Continuous time without coal: 46 days 7 hours

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

That “ahhhh” moment upon completing a 151 page report full of maths and energy analysis and dataset descriptions. Looking forward to its release.

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Proud to be part of this letter!

Jesse D. Jenkins

@JesseJenkins

3 years

In a new letter, 21 grid reliability experts, incl. long-time PJM CEO, commissioners of 4 state PUCs, express "our confidence that our nation’s power system reliability can be preserved and enhanced with the Clean Electricity Performance Program (CEPP)."

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Not really, long term solution is distributed and large-scale #HVDC that is underground to protect it. This will give us the beat of both worlds; and reduce costs massively!

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Our ( @VibrantCE ) recent CEDS report commissioned by @CommEnergyInc (here: ) actually covered the whole of #WECC #grid . It shows under #BAU assumptions the grid can become twice as #clean , while producing more #electricity . It would lower rates, too.

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

Happy new year all! Let's make this year about rigorous science and evidence. Let's also try and reduce GHG emissions, quickly and cost effectively. I hope that investment in infrastructure include high voltage electricity transmission! #hvdc #zeroemissions #cleanenergy

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

This is great work by my team. So interesting to see the costs to cover #cleanfirm with just wind, solar and storage for every county - open source & millions of simulations. For all to use. Publication coming soon!

Vibrant Clean Energy

@VibrantCE

3 years

Ever wondered what it would cost for #baseload generation from #wind #solar & #storage in your local county? Well, we have you covered. #opensource codes to be released soon. #MachineLearning to test many cost combinations. 3.1 million simulations!

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Explaining #climatechange #solutions to a new #generation ! He seems to get it! #startthemyoung

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Dr Christopher T M Clack, PhD

@DrChrisClack

9 months

Might as well use this as a reminder:

Evaluation of a proposal for reliable low-cost grid power with 100% wind, water, and solar |...

A number of analyses, meta-analyses, and assessments, including those performed by the Intergovernmental Panel on Climate Change, the National Ocea...

www.pnas.org

Seaver Wang

@wang_seaver

9 months

LMAO, @mzjacobson is scared that you all might actually read my new analysis critically peer-reviewing his colleague @ChristianOnRE 's flawed country/region modeling work. Which means you all should definitely read it and judge for yourselves:

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

It’s over. The coal free run has been broken. Sad to see!

Coal - GB Grid

@UK_Coal

4 years

This #Coal free run ended at 67 Days 22 Hours 55 Minutes. This is the longest run without coal for Great Britain since 1882. Demand during this time was met by: Gas 32%, Nuclear 21%, Wind 16%, Imports 11%, Biomass 9%, Solar 9%, Large Hydro 1%, Storage <1%

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Dr Christopher T M Clack, PhD

@DrChrisClack

20 days

Best photograph I’ve seen of the #Solareclipe2024 so far. From @NASA

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Amazing reporting from @drvox (again) on study we ( @VibrantCE ) did 4 @CommEnergyInc on the #Colorado energy system. It shows what a great benefit #EVs could be to tackling #climatechange . Read the great write up, as it probably applies to your state, too!

Colorado’s most powerful climate tool isn’t what you think

Electric vehicles can reduce the state’s emissions more than anything else.

www.vox.com

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Shockingly high #temperature (again) today in India 🇮🇳. It’s a horrible & long #heatwave . Made worse by all the #GHG emissions we have put into the atmosphere over the years. Time to stop & fix it (as soon as possible, please)

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

One hour until 11 days without #coal on the GB grid. Keep these hours coming. It's incredible. For those tracking there has already been ~400 hours more coal free hours in 2019 than in all of 2018. Total so far in 2019 is just 3.02 TWh.

Coal - GB Grid

@UK_Coal

5 years

GB National Grid: #Coal is currently generating 0.00GW (0.00%) out of a total of 27.01GW Continuous hours without coal: 263 (10 Days 23 Hours)

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Interesting fact: The top ten emitters (cumulatively) since 1750 (to the end of 2018) have put 1,163,000 million metric tons of CO2 into the atmosphere. 34% is from USA, 18% China, 15% Former USSR, 8% Germany, 7% UK, 5% Japan, 4% India, 3% France, 3% Canada, 2% Poland.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Still going without coal in GB - 24 days or 576 hours!!

Coal - GB Grid

@UK_Coal

4 years

GB Grid: #Coal is generating 0.00GW (0.00%) out of 22.91GW Continuous time without coal: 24 days

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Dr Christopher T M Clack, PhD

@DrChrisClack

2 years

Damn, he is very pessimistic. Such a shame as in reality we have to build transmission no matter what the solution. Just the scale that changes not the need. Storage can’t do it all. Neither can distributed gen. Neither can fuel production. It’s AND not OR!!

Todd N. Tucker

@toddntucker

2 years

Jigar Shah: "The only thing harder to build than nuclear in this country is transmission. We're not going to 3 to 5x transmission in this country. I don't understand who in this room actually thinks that's going to happen by 2035."

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Going to be an amazing conversation on Monday morning with #NPR . Get to hear from me, @SenTinaSmith and @AmyAHarder on the new administration.

The Climate For The Fight Against Climate Change

President Biden's plan to fight climate change appears to take the crisis seriously, unlike the policies of former President Trump. But is it enough?

the1a.org

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

These are awesome machines. When you model them you see the huge increase in power you can produce. Still has variability, but incredible what engineering can do.

Jesse D. Jenkins

@JesseJenkins

3 years

The NYT profiles the GE Haliade-X, the next evolution in massive offshore wind turbines: 13 MW, 220m (722 ft) rotor diameter, 260m tall (853 ft). These larger turbines are making offshore wind power cheaper and will be coming to US shores soon (incl. NJ)

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

The Eastern Interconnection pathway for deep decarbonization from our recent #MNSmarterGrid study. Shows how it can be done with a portfolio, least-cost approach, without relying on crazy 100% WWS assumptions.

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Coal free run ends after 55 days (1,320 hours). Ended because... too hot to run natural gas at full power. Side note - WIS:dom already includes this effect in our heat rates tied to ambient temperature. Most don’t know this is even a thing, let alone model it! @VibrantCE

Coal - GB Grid

@UK_Coal

4 years

This #Coal free run ended at 55 Days 0 Hours 25 Minutes. Demand during this time was met by: Gas 40%, Nuclear 19%, Wind 17%, Biomass 8%, Solar 8%, Imports 6%, Large Hydro 1%, Storage <1%

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

For me, the interesting thing w/ this study is that it completely changed how I view the electricity system & how the components act together & against each other. It really shows emergent behavior, which means it is not easy to map A->B for cost savings in one specific area.

Vibrant Clean Energy

@VibrantCE

3 years

⚡️ NEW STUDY RELEASE (9:30 ET 12/1) ⚡️ Why Local Solar For All Costs Less: A New Roadmap for the Lowest Cost Grid A thread 🧵 - this study has been ~18 months in the making! @SolarAccess @Sunrun @TeamKivvit @LocalSolar4All @votesolar @DrChrisClack @achoukulkar @RabagoEnergy

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Dr Christopher T M Clack, PhD

@DrChrisClack

4 years

Will this post allow me to break the 3K follower mark. Only you, #energytwitter , can make this dream come true!!

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Dr Christopher T M Clack, PhD

@DrChrisClack

1 year

@NWSSWPC Yup!

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Dr Christopher T M Clack, PhD

@DrChrisClack

6 years

This is terrible if true. Sigh, what a time to be in the energy industry. Free markets eh?!

Jennifer A. Dlouhy

@jendlouhyhc

6 years

Breaking: Trump administration officials are making plans to order grid operators to buy electricity from struggling coal and nuclear plants in an effort to extend their life, a move that would represent an unprecedented intervention into U.S. energy markets.

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Here is a little blog that I did for @EnergySystemsIG on #energysystems #integration of #renewableenergy to help mitigate #climatechange (let me know what you think): @SteveDavisUCI @KenCaldeira @PauliJllo @PSFennell @Niallmacdowell @markahlstrom @mehdyson

Planning for Integrated Energy Systems - ESIG

Share this articleNew technologies are rapidly being connected to the electricity system. The connection of these technologies (think wind, solar, storage, etc.) needs to be planned to make the whole...

www.esig.energy

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Dr Christopher T M Clack, PhD

@DrChrisClack

5 years

Thought it would be good to note that wind generation (power) currently (this hour) over the whole Contiguous US is above 50,000 MW. We want to start tracking this (and solar and all others) across regularly - hourly or 5-minutely.

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Dr Christopher T M Clack, PhD

@DrChrisClack

7 years

Report: Solar plus storage can beat natural gas in Minnesota via @mprnews

Report: Solar plus storage can beat natural gas in MN

The report from the University of Minnesota's Energy Transition Lab analyzed many different scenarios but found that solar arrays with batteries are a cost effective way to meet peak electricity...

www.mprnews.org

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Dr Christopher T M Clack, PhD

@DrChrisClack

3 years

Still amazes me that I can spend months and years researching something then post something on Twitter and you still get the dumbest “corrections” to *your* thinking. Even though I have the data and models for that entire system.

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