Discover and read the best of Twitter Threads about #heatpumps
Most recents (24)
Fed up of having to send complaints to the #BBC on its negative coverage on heat pumps to individual programmes, I have written to the Director General, Tim Davie. I haven't pulled my punches. #heatpumps #retrofit #heating #falsebalance
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EPA is proposing to eliminate the ENERGY STAR label for one-way air central air conditioners and furnaces:
▶️signaling that #heatpumps are THE efficient choice
▶️shifting utility incentives
▶️changing the market
▶️signaling that #heatpumps are THE efficient choice
▶️shifting utility incentives
▶️changing the market
#heatpumps are necessary for building decarbonization, meeting US net-zero commitments, and halting climate change (from IEA's #WEO World Energy Outlook 2022).
This was an amazing podcast (as usual from @drvolts). Thanks for the shout-out to LPO and the other great programs here. A few thoughts as we get more intentional about savings money for LMI consumers -- reducing energy burden.
The data that Vero talked about is summarized here. We have long known that LMI customers repay energy related loans at a much higher rate then other loans that they take out. But lenders still charge 30% interest for appliances, other loans. emp.lbl.gov/publications/l…
We can solve that problem and start to do that by making existing financing solutions more inclusive, see the @SunnovaEnergy announcement this month. Also allows LMI customers to take advantage of #VirtualPowerPlant income. energy.gov/lpo/articles/l…
First leaks of the EU Net Zero Industry Act are out. Here is what to expect for the official draft proposal on March 14th:
#GreenDealIndustrialPlan #NZIA #IRA
European manufacturing capacity shall be scaled up for the following technologies👇(1/13)
#GreenDealIndustrialPlan #NZIA #IRA
European manufacturing capacity shall be scaled up for the following technologies👇(1/13)
Scope (2/13):
1. #Solar Photovoltaic & solar thermal
2. Onshore and offshore #wind
3. #Battery technologies
4. #HeatPumps + #geothermal energy
5. Renewable #hydrogen
6. #Biomethane
7. #Nuclear technologies (fission)
8. #CCUS
9. #Grid technologies
1. #Solar Photovoltaic & solar thermal
2. Onshore and offshore #wind
3. #Battery technologies
4. #HeatPumps + #geothermal energy
5. Renewable #hydrogen
6. #Biomethane
7. #Nuclear technologies (fission)
8. #CCUS
9. #Grid technologies
Manufacturing capacity objectives within the EU by 2030 (3/13):
- Binding overall target: at least 40% of the Union’s annual deployment needs
- indicative targets for specific tech: wind turbines (85%), solar PV (40%), heat pumps (65%), batteries (85%), electrolysers (50%)
- Binding overall target: at least 40% of the Union’s annual deployment needs
- indicative targets for specific tech: wind turbines (85%), solar PV (40%), heat pumps (65%), batteries (85%), electrolysers (50%)
Picture of the Week: Speed of change around #energytransition is accelerating. Last year the @IEA projected that #renewableenergy installations would be 1800GW over the next five years. Now they are saying that it will be 2,400GW which is the installed capacity of #China.
Why is the #energytransition accelerating:
1. Geopolitics - #Ukrainian crisis has forced #Europe to accelerate #decarbonization. It has also been a wake up call for #China who is a huge #energy importer.
1. Geopolitics - #Ukrainian crisis has forced #Europe to accelerate #decarbonization. It has also been a wake up call for #China who is a huge #energy importer.
Why is the #energytransition accelerating:
2. Opportunity - #EVs, #batteries, #heatpumps and #Solar are multi-billion dollar markets growing at circa 40% per annum and are attracting the best entrepreneurs and businesses across the world
2. Opportunity - #EVs, #batteries, #heatpumps and #Solar are multi-billion dollar markets growing at circa 40% per annum and are attracting the best entrepreneurs and businesses across the world
Very excited to rip out our fossil #gas furnace and replace it with a cold climate air-source #heatpump this week. New system is more affordable, efficient and comfortable and will end our household dependance on fossil fuels. Disconnect #gas #electrifyeverything #ClimateCrisis
I'll be sure to post details, photos (and eventually household energy data) through the process.
obligatory photo of trashed old #gas furnace (and water leaking from its poorly installed drain connection)
New study: direct electrification of process heat up to 500°C can reduce German industry’s fossil gas demand by 90 TWh which is 3/4 of its required gas savings under REPowerEU. Read how a rapid industrial heat transition contributes to #climateaction & #energysecurity. 🧵 1/7
The #industrialsector is the second largest greenhouse gas emitter in Germany. #Heatpumps & #electricboilers can reduce industrial CO2 emissions by 12.5 Mt by 2030. This reduction equals 18 % of the German sectoral target. 2/7
With around 12 bn € investments needed until 2030 the #heattransition comes at comparably low cost: It is a fraction of what the German government plans to spend on protecting industry from high gas prices. 3/7
I have never been as positive about our #energy #future as I am these days. Not alone do we have the #technologies and the knowhow to #decarbonise but we have massive retooling taking place in #China and the #US around key future energy technologies
Such as #solar, #wind, #batteries, #digitalisation, nextgeneration #nuclear, as well as significant technology breakthroughs in #geothermal, #heatpumps #tidalenergy, #hydrogen
What we do need to change is the negativity around #climatechange. It was thus great to read this article from @greendig criticising the god father of #energyhistory Vaclav Smil
medium.com/oneearth/ok-do…
medium.com/oneearth/ok-do…
Looking forward to what should be an interesting discussion on the #EnergySecurityStrategy and whether it will deliver clean, affordable energy for British consumers #BeesleyLectures
Chair @UKERCHQ’s opens the lecture by noting that #EnergySecurity has gone up the political agenda not just in 🇬🇧 but across Europe, noting in particular political developments in 🇩🇪 over coal & LNG vs nuclear power #BeesleyLecture
Returning to the 🇬🇧, Maclean ponders the fate of the #EnergySecurityBill, and whether BEIS Minister Schapps will continue Rees-Moggs planned review of the Bill #BeesleyLecture
This Friday, EU energy ministers aim to decide on measures to soften the impact of the escalating #gas and #electricity bills on households and businesses. The decisions should be guided by the following principles. A 🧵 1/10
Direct, timely & targeted payments to households & companies that need support are better than general public spending to lower energy prices for all consumers. The latter is very costly & can undermine the crucial need to save as much energy as possible before winter. 2/10
Current pricing mechanisms in #electricity market work and must be maintained. Marginal pricing is central to the integration of renewables and necessary to incentivise uptake of #heatpumps and #electricvehicles. Read more in our new paper (in German) bit.ly/3fs6Rmj 3/10
These 6 videos could massively slash fuel bills! 💵 + COULD COST NOTHING!
Please share far & wide you could be really helping someone out this winter!
The first 'The Secret to Boiler Efficiency' is full quick wins anyone can do for up to 15% saving.
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Please share far & wide you could be really helping someone out this winter!
The first 'The Secret to Boiler Efficiency' is full quick wins anyone can do for up to 15% saving.
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The second is more advanced to really refine your efficiency to its max! It's all about squeezing those last flow temperature drops down.
Maybe one for the more technically minded, or find a Heat Geek who knows all this! This could save up to 15%.
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Maybe one for the more technically minded, or find a Heat Geek who knows all this! This could save up to 15%.
2/7
This next one is all about timing your heating, should I leave my heating constantly on, or time to come one as often as possible..? Savings possible here could be over 10%.
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1/ #heatpumps can help reducing imports of natural gas and CO2 emissions. But they also cause an increase in electricity consumption. We had a look how this plays out in the power sector. 🧵on our latest @DIW_Berlin_en #weeklyreport (first published in 🇩🇪) doi.org/10.18723/diw_d…
2/ What do #heatpumps do? They extract heat from the environment (usually from the air or the ground) and make it available for space heating at a higher temperature level. For this, they require some electricity.
3/ With our #opensource model #DIETER, we analyzed the power sector of the year 2030, using scenarios with different stocks of heat pumps: a reference with 1.7 mio, and three target scenarios with 3.9, 6.5 or 7.5 mio heat pumps.
⚡️NEW REPORT⚡️:
Our new modelling report from @DavidSuzukiFDN shows that 100% zero-emissions electricity across Canada by 2035 is possible, reliable and affordable.
Buckle up for a #CleanElectricity thread 🧵
bit.ly/CleanElectrici…
#Climate #energytwitter #cdnpoli
Our new modelling report from @DavidSuzukiFDN shows that 100% zero-emissions electricity across Canada by 2035 is possible, reliable and affordable.
Buckle up for a #CleanElectricity thread 🧵
bit.ly/CleanElectrici…
#Climate #energytwitter #cdnpoli
This is the first modelling report of its kind in Canada. It goes beyond #NetZero to reach #ZeroEmissions by 2035, primarily by relying on:
☀️#Renewables like wind & solar
🔋#EnergyStorage
🏡#EnergyEfficiency
🌊Existing #Hydropower
🔌More grid connections between regions
☀️#Renewables like wind & solar
🔋#EnergyStorage
🏡#EnergyEfficiency
🌊Existing #Hydropower
🔌More grid connections between regions
Overall, Canada's electricity capacity grows by 2.8x by 2050, and the amount of electrical energy we use grows by 1.8x
All #FossilFuels on the grid are phased out by 2035, including all #NaturalGas. And no nuclear or fossils with #CCUS are needed.
All #FossilFuels on the grid are phased out by 2035, including all #NaturalGas. And no nuclear or fossils with #CCUS are needed.
Is humidity control just for warm-humid weather? Or can you grow mold in winter?
A little thread for the part of #energytwitter that hasn't seen the bigger picture of #buildingscience.
1/
A little thread for the part of #energytwitter that hasn't seen the bigger picture of #buildingscience.
1/
First, if you think you're immune to moisture & mold problems because your climate is dry in summer, let me invite you to take a look inside your fridge. What's inside that container in the back that you've forgotten for a couple of months.
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Extreme example: Family in Kansas had a poorly insulated building enclosure. They kept the inside relative humidity at 50% while outdoor temperature was -5 °F.
Yes, that's ice on the walls & ceiling inside the house. Here are the details:
3/
bit.ly/3vqD2GT
Yes, that's ice on the walls & ceiling inside the house. Here are the details:
3/
bit.ly/3vqD2GT
@prlambert @energysmartwv @curious_founder One per room is way too many. They’re not small enough and the turndown isn’t low enough for that.
@prlambert @energysmartwv @curious_founder We usually do ducted #heatpumps for the whole house in our #HVAC design projects. When people come to us wanting all #ductless units, we try to talk them into ducted for the bedrooms.
@prlambert @energysmartwv @curious_founder Here's an example from a small high-performance house we did in Virginia.
Loads (in BTU/hr)
Bedroom 1
htg = 1,944
clg = 320
Bedroom 2
htg = 1,454
clg = 511
Study
htg = 1,665
clg = 1,063
Loads (in BTU/hr)
Bedroom 1
htg = 1,944
clg = 320
Bedroom 2
htg = 1,454
clg = 511
Study
htg = 1,665
clg = 1,063
1/9 Dedicating #RenewableElectricity to #Hydrogen cannot free the EU from #RussianGas.⚠️ What can, is using renewable electricity efficiently.
📚Read what #REPowerEU gets wrong and how to make it right.
👇
bit.ly/360hDvx
#REPowerEU #RenewableHydrogen #Fitfor55 #REDII
📚Read what #REPowerEU gets wrong and how to make it right.
👇
bit.ly/360hDvx
#REPowerEU #RenewableHydrogen #Fitfor55 #REDII
2/9 How we use each TWh of electricity has a huge impact on whether we break free⛓️ from #RussianGas.
Using it in #HeatPumps displaces three times more fossil gas than using it to produce.👇
#RenewableHydrogen.
Using it in #HeatPumps displaces three times more fossil gas than using it to produce.👇
#RenewableHydrogen.
3/9 #REPowerEU foresees the total installed wind 🌬️& PV ☀️capacity to increase from today’s 360 GW to almost 1000 GW + 80 GW of renewables earmarked for #H2.
This will produce over 1000 TWh of electricity⚡️ per year. That’s the 🇫🇷 & 🇩🇪 demand combined.
This will produce over 1000 TWh of electricity⚡️ per year. That’s the 🇫🇷 & 🇩🇪 demand combined.
As #UkraineRussiaWar continues, and @IPCC_CH publishes it latest #Climate report, we take a closer look at the energy policy measures Europeans can take to weaken both Putin and climate disruption.
Take a look at the most efficient measures we have found so far 👇
#Thread
Take a look at the most efficient measures we have found so far 👇
#Thread
First, #EnergySufficiency measures (in plain English: stop wasting energy) are by far the best. Quick to implement. Efficient. Cost-effective. They should become a national security priority and give ideas for people to tangibly #StandWithUkraine in those dark days.
Second, #EnergyEfficiency targeting oil/gas heating buildings is a must. It however takes time to be rolled-out to significantly impact our dependence. All the more reason to start now!
What are retrofit options for someone with 90-100m² ‘hard to treat’ home, concerned about rising gas prices and the planet? Installing a heat pump is single largest measure for lowering the carbon footprint, but how soon to fit one on retrofit journey? #retrofit #heatpumps 1/
Doing nothing on fabric or gas means bills will escalate
and there is a serious risk that such a home will have lower resale value in the future. By starting to think about retrofit, home owners might do things they have put off for years, like clearing the loft. /2
and there is a serious risk that such a home will have lower resale value in the future. By starting to think about retrofit, home owners might do things they have put off for years, like clearing the loft. /2
Getting off gas early prioritises planet, without bills needing to rise.
Install ASHP early alongside
Limited fabric measures, such as loft insulation to modern std; seals / brushes for doors / sash windows for drafts (and cavity wall insulation added if applicable) 3/
Install ASHP early alongside
Limited fabric measures, such as loft insulation to modern std; seals / brushes for doors / sash windows for drafts (and cavity wall insulation added if applicable) 3/
Hey, maybe we should all install one of these in our homes?🤔 A heat pump!
A heat pump extracts heat from the cold outside air and transfers it inside our home...
- @ThisOldHouse
#HeatPump #HomeHeating #Heating #furnace #airconditioning #EnergyEfficiency
A heat pump extracts heat from the cold outside air and transfers it inside our home...
- @ThisOldHouse
#HeatPump #HomeHeating #Heating #furnace #airconditioning #EnergyEfficiency
In depth Explination, like really in depth; by Technology Connections
#HeatPump #HeatPumps #HomeHeating #Heating #furnace #elecricity #EnergyEfficiency #Energy
#HeatPump #HeatPumps #HomeHeating #Heating #furnace #elecricity #EnergyEfficiency #Energy
... To this end, a compressor inside the device uses electricity to increase the temperature of the heat extracted from the outside air. The heat pump can also provide cooling by transferring warm indoor air to the outside.
nrcan.gc.ca/energy-efficie…
nrcan.gc.ca/energy-efficie…
My task this weekend, ahead of the heat and buildings strategy launch and #cop26 is to show the work involved in installing a #heatpump and #lowtemp heating. To get to #netzero you don't have to have a heat pump, but you will need low temp heating and an energy efficient home 1/9
Firstly, even if you get a hydrogen or electric boiler, you are going to need to run your heating cooler in the less cold weather and hotter in the colder weather. This saves energy and is called weather compensation. For some this will mean bigger radiators and larger pipes 2/9
Starting now. After brief opening statement by Chair Schwertner. Sen @whitmire_john asks why do we have to incentivize power plants to do what they're supposed to? Sen Nichols says they're profit seeking companies and they won't invest unless they can make money.
Whitmire responds: are you talking about providing government subsidies for gas generation? Tells Nichols he's sounding like the Biden Administration. Not sure why we would throw incentives at thermal generation.
#txlege #txenergy
#txlege #txenergy
Whitmire says we've reshuffled boards and commissions but we may be worse off now in terms of energy reliability than we were in February.
#txlege
#txlege
How much could heat pumps earn selling wholesale grid services? I estimate $25-100 annually per nameplate electrical kW from regulation + synchronous reserve in PJM. A typical home's central air-source heat pump could earn $75-300.
#electrifyeverything #energytwitter #heatpumps
#electrifyeverything #energytwitter #heatpumps
Not huge revenue, but enough to cover aggregation/instrumentation costs within a couple of years. A heat pump aggregator may be able to provide these services alongside others, like demand response curtailment, voltage support, or energy price arbitrage. 2/
These estimates are for reversible variable-speed air-source heat pumps, which both heat and cool, so can provide grid services most of the year. Revenues will be lower for heating-only or fixed-speed (on/off) units. Source is a forthcoming paper. 3/
Aware that #heatpumps are currently costly and difficult to fit, but this article is neither objective, nor factual. Error 1: "When it comes to winter warming, you can't beat gas central heating.". Fact: Low temp heating with a heat pump is more comfortable than with a gas boiler
Error 2 "some of the new-style kit can't heat the UK's cold, draughty houses." Ignoring that some of our old-style kit can't heat our draughty houses and we have the worst #fuelpoverty in Europe. Fact #heatpumps can heat draughty houses, but why would you want to? Fix the homes.
Error 3: "Hydrogen lobbyists say it can travel through existing pipes - at least until it reaches the home." Key words there (apart from the 2nd) are the last 7. Presents #heatpumps as disruptive, which the installation can be, but then glosses over replacing internal gas pipes.
👏@IEA for publishing such a great work on #innovation #energy #climate
Here are my 6 takeways from this 400p document #Thread
Full @IEA document here 👉iea.org/reports/energy…
Here are my 6 takeways from this 400p document #Thread
Full @IEA document here 👉iea.org/reports/energy…
1. We can already cut global emissions by 55% with already commercially available technologies (i.e. early adoption + mature). But we also need to further develop technologies to get to #NetZero
