I had put this in one of the Environment threads.

Here it is again, two ways to reduce our emissions.

Some figures first

26.01 million (2022) people in Australia

11,176,100 homes 2,589,873 businesses

Total energy used annually in Australia 274 TWh (terawatt-hours)

To get your figure hot water figure use this simple formula.

Number of minutes using hot water ie 30 minutes a week

Minutes in a day 60×24=1440 minutes

Minutes in a week 1440×7=10080 minutes

Substract your total minutes from 10080 minutes.

To reduce emissions

1 Replace all 24×7 hot water services in Australia with hot water on demand systems.

2 Replace all single pane windows in all dwellings in Australia with double glazed windows.

To do thus will require time to adjust and a government initiative.

There are people here who have already made the switch so hats off to you.

Hats off to the engineers who designed and made hot water on demand systems.

I know such systems have been around for a while.

It would be very interesting to see the figures if we all did those things.

World wide energy use is 28,844 terawatt-hours.

^ That reminds me of the swich over from old light globes to LED globes.

Where are these 24×7 hot water services of which you speak?

Ian said:

Where are these 24×7 hot water services of which you speak?

Good question.

I am thinking it is one of those electric induction heaters that switch on only when the hot water tap is turned on. A small unit under the sink in the kitchen and bathroom and laundry etc serving just that one room. Benefits: no central tank of hot water to be kept hot, no separate sets of hot and cold pipes.

But really, while double glazing and more efficient HWS are not to be scoffed at in terms of improving energy efficiency of residential housing, they are probably only a small overall contribution compared to emissions from industry, transport and agriculture.

party_pants said:

Ian said:

Where are these 24×7 hot water services of which you speak?

Good question.

I am thinking it is one of those electric induction heaters that switch on only when the hot water tap is turned on. A small unit under the sink in the kitchen and bathroom and laundry etc serving just that one room. Benefits: no central tank of hot water to be kept hot, no separate sets of hot and cold pipes.

But really, while double glazing and more efficient HWS are not to be scoffed at in terms of improving energy efficiency of residential housing, they are probably only a small overall contribution compared to emissions from industry, transport and agriculture.

I thought Tau was referring to storage tank HWS which are usually off-peak electric heated.. but these are only on for 2 or 3 hours. Or Continuous Tariff. Or heat pump…

Many many ways to heat domestic hot water.

https://en.m.wikipedia.org/wiki/Water_heating

party_pants said:

Ian said:

Where are these 24×7 hot water services of which you speak?

Good question.

I am thinking it is one of those electric induction heaters that switch on only when the hot water tap is turned on. A small unit under the sink in the kitchen and bathroom and laundry etc serving just that one room. Benefits: no central tank of hot water to be kept hot, no separate sets of hot and cold pipes.

But really, while double glazing and more efficient HWS are not to be scoffed at in terms of improving energy efficiency of residential housing, they are probably only a small overall contribution compared to emissions from industry, transport and agriculture.

The move from old light globes to led globes was one efficiency…

The move from no roof insulation to fully roof insulated is another one…

Door seals
Window seals
Underfloor insulation
Wall insulation
Exhaust fan seals flaps

Across 11 million homes and 2 million businesses.

Industry, transport and agriculture have or are in the process of upgrading efficiencies.

Probably an ongoing process.

Transport

Car engines have come a long way since their invention.

Each new generation of aircraft have seen jumps in efficiencies.

Same with rockets for space engines.

Same with each new generation of trucks, new trains and new tractors and other farm equipment.

A lot of businesses have moved over to led lighting and new ways of heating and cooling.

Tau.Neutrino said:

Transport

Car engines have come a long way since their invention.

Each new generation of aircraft have seen jumps in efficiencies.

Same with rockets for space engines.

Same with each new generation of trucks, new trains and new tractors and other farm equipment.

A lot of businesses have moved over to led lighting and new ways of heating and cooling.

Left out shipping.

Shipping has seen efficiencies as well.

If you can see sunlight coming in under your door = install door flaps, stops drafts and stops spiders coming in.

dv said:

excellent should be all good by 2045 then when the temperature’s reached what the +4 K and life is fun

Energy efficiencies for the home

Led globes
Roof insulation
Wall insulation
Underfloor insulation
Door seals top and sides
Door flaps bottom of door
Window seals
Exhaust fan seal flaps or exhaust fans with inbuilt flaps
Installing:
Heat pumps,
Solar panels,
Solar hot water heating,
Reverse cycle air-conditioning,
Hot water on demand systems,
Summer winter ceiling fans,
Summer winter outside blinds.
Tree shading.

16 on the list so far.

Tau.Neutrino said:

Energy efficiencies for the home

Led globes
Roof insulation
Wall insulation
Underfloor insulation
Door seals top and sides
Door flaps bottom of door
Window seals
Exhaust fan seal flaps or exhaust fans with inbuilt flaps
Installing:
Heat pumps,
Solar panels,
Solar hot water heating,
Reverse cycle air-conditioning,
Hot water on demand systems,
Summer winter ceiling fans,
Summer winter outside blinds.
Tree shading.

16 on the list so far.

Left out double glazed windows.

10 Energy Conservation Ideas

Turn your refrigerator down.
Use energy-efficient light bulbs.
Clean or replace air filters as recommended.
Do full loads.
Use smart power strips.
Air-dry dishes and clothes.
Bake with glass or ceramic pans.
Cook using the right-sized burner.
Turn off lights when not in use.
Turn off appliances when not in use.
Turn down heating.
Turn down cooling.

https://www.energy.vic.gov.au/households/save-energy-and-money/top-10-energy-saving-tips

https://www.constellation.com/energy-101/what-is-energy-conservation.html

https://www.energyfactsaustralia.org.au/key-issues/energy-efficiency/

Tau.Neutrino said:

Tau.Neutrino said:

Energy efficiencies for the home

Led globes
Roof insulation
Wall insulation
Underfloor insulation
Door seals top and sides
Door flaps bottom of door
Window seals
Exhaust fan seal flaps or exhaust fans with inbuilt flaps
Installing:
Heat pumps,
Solar panels,
Solar hot water heating,
Reverse cycle air-conditioning,
Hot water on demand systems,
Summer winter ceiling fans,
Summer winter outside blinds.
Tree shading.

16 on the list so far.

Left out double glazed windows.

Left out inside door rollers (bottom of door)

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

Tau.Neutrino said:

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

You need more than just an app, you need an IR sensor to plug into it.

Spiny Norman said:

Tau.Neutrino said:

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

You need more than just an app, you need an IR sensor to plug into it.

True, most modern smartphone would have one, not all do.

Some more ways to save energy

1 do cooking for multiple meals
2 use a 2 litre thermo for coffee making and use a thermo mug for keeping it hot.

Tau.Neutrino said:

Spiny Norman said:

Tau.Neutrino said:

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

You need more than just an app, you need an IR sensor to plug into it.

True, most modern smartphone would have one, not all do.

Hardly any do sorry.
I’ve got a gadget that plugs into the USB port that I use though.

party_pants said:

improving energy efficiency of residential housing, they are probably only a small overall contribution compared to emissions from industry, transport and agriculture.

yeah when shit went down in one of these Forums 2009 and there was a big bunfight over energy whitepapers we read them and read up on them and from memory it was about 1/3 each

• heating cooling household stuff
• transportation all
• manufacturing

Spiny Norman said:

Tau.Neutrino said:

Spiny Norman said:

You need more than just an app, you need an IR sensor to plug into it.

True, most modern smartphone would have one, not all do.

Hardly any do sorry.
I’ve got a gadget that plugs into the USB port that I use though.

This is the one I have, the one at the left end of the list, the Compact.
https://www.thermal.com/compact-series-cameras.html

Underfloor insulation could be sped up using drones developed for it.

Spiny Norman said:

Spiny Norman said:

Tau.Neutrino said:

True, most modern smartphone would have one, not all do.

Hardly any do sorry.
I’ve got a gadget that plugs into the USB port that I use though.

This is the one I have, the one at the left end of the list, the Compact.
https://www.thermal.com/compact-series-cameras.html

I have three smartphones that all have it.

Every smartphone I’ve had for the last few years can see infrared.

Open up your smartphone camera. Grab your TV remote and point it at the phone. Press any button and you’ll see the remote’s light flash on the phone screen image, even though you can’t see it with the naked eye.

Tau.Neutrino said:

Spiny Norman said:

Spiny Norman said:

Hardly any do sorry.
I’ve got a gadget that plugs into the USB port that I use though.

This is the one I have, the one at the left end of the list, the Compact.
https://www.thermal.com/compact-series-cameras.html

I have three smartphones that all have it.

IMO, it’s a feature all smartphones should have.

You can use the ir sensor in multiple ways

You can teach the smartphone remote codes very easily.

Your can see heat leakage very easily.

Use it for science applications.

party_pants said:

Every smartphone I’ve had for the last few years can see infrared.

Open up your smartphone camera. Grab your TV remote and point it at the phone. Press any button and you’ll see the remote’s light flash on the phone screen image, even though you can’t see it with the naked eye.

If others are unawares, smartphones with IR sensors, you can teach a smartphone all the codes on all of your remotes, and do away with remotes on the coffee table completely.

party_pants said:

Every smartphone I’ve had for the last few years can see infrared.

Open up your smartphone camera. Grab your TV remote and point it at the phone. Press any button and you’ll see the remote’s light flash on the phone screen image, even though you can’t see it with the naked eye.

Righto.
Take a photo of something hot in a low-light or pitch black area and let us know what it looks like.

Tau.Neutrino said:

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

Most smartphones don’t have an infrared sensor.

I have a Cat S61 which has one. It is very useful for finding heat sources, like brake shoes, bearings, etc.

Guess which tire is under pressure.

Kingy said:

Guess which tire is under pressure.

• Tyre.

The RH one.

Tau.Neutrino said:

As Dr Karl Kruszelnicki pointed out, you can see heat leakage around the home by using an infrared app on the camera on your smartphone.

What’s the best app for this?

There are differences between apple iphones and Android phones.

The rub is that the iPhone just doesn’t have the hardware to make a true night vision camera, and in total pitch black, you get no picture at all. But, with …

Apple users need need a usb device Android users don’t.

For Apple users there are

FLIR ONE
https://apps.apple.com/us/app/flir-one/id875842742

For Android users
https://play.google.com/store/search?q=thermal+camera&c=apps&hl=en_US

Tau.Neutrino said:

There are differences between apple iphones and Android phones.

The rub is that the iPhone just doesn’t have the hardware to make a true night vision camera, and in total pitch black, you get no picture at all. But, with …

Apple users need need a usb device Android users don’t.

For Apple users there are

FLIR ONE
https://apps.apple.com/us/app/flir-one/id875842742

For Android users
https://play.google.com/store/search?q=thermal+camera&c=apps&hl=en_US

Is Apple still doing this?

Because it would be hindering science applications, as well as keeping remotes on the coffee table in addition to hindering people finding heat leakages around the home.

Tau.Neutrino said:

Tau.Neutrino said:

There are differences between apple iphones and Android phones.

The rub is that the iPhone just doesn’t have the hardware to make a true night vision camera, and in total pitch black, you get no picture at all. But, with …

Apple users need need a usb device Android users don’t.

For Apple users there are

FLIR ONE
https://apps.apple.com/us/app/flir-one/id875842742

For Android users
https://play.google.com/store/search?q=thermal+camera&c=apps&hl=en_US

Is Apple still doing this?

Because it would be hindering science applications, as well as keeping remotes on the coffee table in addition to hindering people finding heat leakages around the home.

Note that removing remotes off the coffee table also reduces buying batteries for them.

Two types of outside blinds

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

party_pants said:

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

Agree, motorized shading cloth for roofs and walls would be cool.

Tau.Neutrino said:

party_pants said:

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

Agree, motorized shading cloth for roofs and walls would be cool.

“… would be cool.”

:)

People use solar panels to shade roofing while structures in front of walls shade those walls.

party_pants said:

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

A built-in thermostat could lower and raise them with weather changes.
And or raise lower them morning and night etc

Tau.Neutrino said:

party_pants said:

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

A built-in thermostat could lower and raise them with weather changes.
And or raise lower them morning and night etc

And or raise lower them morning and night as per sunrise sunset changes over the calendar year etc

Tau.Neutrino said:

Tau.Neutrino said:

party_pants said:

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

A built-in thermostat could lower and raise them with weather changes.
And or raise lower them morning and night etc

And or raise lower them morning and night as per sunrise sunset changes over the calendar year etc

The advantage of the diy ezy is that is has aluminium on one side and insulation on the other side.

The advantage of the pull out awning is that the cotton, canvass, covering acts as a shade and lets air circulation to happen.

Tau.Neutrino said:

Tau.Neutrino said:

party_pants said:

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

A built-in thermostat could lower and raise them with weather changes.
And or raise lower them morning and night etc

And or raise lower them morning and night as per sunrise sunset changes over the calendar year etc

For windows that get direct sunlight, set the shades to lower on direct sunlight and raise after direct sunlight.

New roofs should have ceramic tiling with solar panel shading and areas with no solar panels should have an extra layer of ceramic tiling for shading.

Use solar powered fans at the top of the roof to help extract built up heat between the two layers.

Tau.Neutrino said:

New roofs should have ceramic tiling with solar panel shading and areas with no solar panels should have an extra layer of ceramic tiling for shading.

Use solar powered fans at the top of the roof to help extract built up heat between the two layers.

Or send that built-up heat to a device to recover energy from it.

Tau.Neutrino said:

Tau.Neutrino said:

New roofs should have ceramic tiling with solar panel shading and areas with no solar panels should have an extra layer of ceramic tiling for shading.

Use solar powered fans at the top of the roof to help extract built up heat between the two layers.

Or send that built-up heat to a device to recover energy from it.

You could capture trapped heat from a double or triple glazed window for energy recovery.

If energy providers accessed power meters via a split optic cable they could read electricity meters online saving manual meter reading and doing away with estimates at the same time.

Tau.Neutrino said:

If energy providers accessed power meters via a split optic cable they could read electricity meters online saving manual meter reading and doing away with estimates at the same time.

Another way to do it would be a physical network connection between the mains board and the users WiFi modem, this could be a empty network port, a WiFi connection or a new type of physical connection altogether between mains board and the users modem.

party_pants said:

Tau.Neutrino said:

Two types of outside blinds

Oh yeah. I have long argued that energy efficient buildings need to have movable/retractable shade coverings. Rather than just rely on static architecture alone, and see blinds and shutters and louvers as an optional after-market-add-on – they need to be planned and installed as part of the original build.

Yes. It is the original build that causes the problems, so it all does have to be factored in.

OK so if we cut out the beans and the batter and the bread, but the outgassing continues, what next ¿

SCIENCE said:

OK so if we cut out the beans and the batter and the bread, but the outgassing continues, what next ¿

Stop eating?

roughbarked said:

SCIENCE said:

OK so if we cut out the beans and the batter and the bread, but the outgassing continues, what next ¿

Stop eating?

stop breathing

Tau.Neutrino said:

If energy providers accessed power meters via a split optic cable they could read electricity meters online saving manual meter reading and doing away with estimates at the same time.

there are smart meters already.

Be as efficient as you want. Another million immigrants every two years will swallow up your efficiencies.

idiots know nothing of economies of scale

SCIENCE said:

idiots know nothing of economies of scale

Who are you calling as idiots?

roughbarked said:

SCIENCE said:

idiots know nothing of economies of scale

Who are you calling as idiots?

read the thread post sequence

SCIENCE said:

roughbarked said:

SCIENCE said:

idiots know nothing of economies of scale

Who are you calling as idiots?

read the thread post sequence

OK.

20 Energy efficiencies for the home (Not a complete list)

Installing: *Led globes, *Roof insulation, *Wall insulation, *Underfloor insulation, *Door seals top and sides, *Door flaps bottom of door, *Window seals, *Inside door rollers (bottom of door), *Exhaust fan seal flaps or exhaust fans with inbuilt flaps, *Heat pumps, *Solar panels + batteries, *Solar hot water heating, *Reverse cycle air-conditioning, *Double glazed windows, *Hot water on demand systems, *Summer winter ceiling fans, *Double layered ceramic roof tiles, *Outside summer blinds, *Outside winter blinds, *Planning the garden for Tree shading.

Tau.Neutrino said:

20 Energy efficiencies for the home (Not a complete list)

Installing:

• Led globes,
• Roof insulation,
• Wall insulation,
• Underfloor insulation,
• Door seals top and sides,
• Door flaps bottom of door,
• Window seals,
• Inside door rollers (bottom of door),
• Exhaust fan seal flaps or exhaust fans with inbuilt flaps,
• Heat pumps,
• Solar panels + batteries,
• Solar hot water heating,
• Reverse cycle air-conditioning,
• Double glazed windows,
• Hot water on demand systems,
• Summer winter ceiling fans,
• Double layered ceramic roof tiles,
• Outside summer blinds,
• Outside winter blinds,
• Planning the garden for Tree shading.

Tau.Neutrino said:

Tau.Neutrino said:

20 Energy efficiencies for the home (Not a complete list)

Installing:

• Led globes,
• Roof insulation,
• Wall insulation,
• Underfloor insulation,
• Door seals top and sides,
• Door flaps bottom of door,
• Window seals,
• Inside door rollers (bottom of door),
• Exhaust fan seal flaps or exhaust fans with inbuilt flaps,
• Heat pumps,
• Solar panels + batteries,
• Solar hot water heating,
• Reverse cycle air-conditioning,
• Double glazed windows,
• Hot water on demand systems,
• Summer winter ceiling fans,
• Double layered ceramic roof tiles,
• Outside summer blinds,
• Outside winter blinds,
• Planning the garden for Tree shading.

Install thermally insulated window blinds for inside.
Build homes with double layered brick walls.

Tau.Neutrino said:

Build homes with double layered brick walls.

Load-bearing brick walls are not a good idea in some seismic zones. Like most of the world.

Tau.Neutrino said:

Tau.Neutrino said:

Tau.Neutrino said:

20 Energy efficiencies for the home (Not a complete list)

Installing:

• Led globes,
• Roof insulation,
• Wall insulation,
• Underfloor insulation,
• Door seals top and sides,
• Door flaps bottom of door,
• Window seals,
• Inside door rollers (bottom of door),
• Exhaust fan seal flaps or exhaust fans with inbuilt flaps,
• Heat pumps,
• Solar panels + batteries,
• Solar hot water heating,
• Reverse cycle air-conditioning,
• Double glazed windows,
• Hot water on demand systems,
• Summer winter ceiling fans,
• Double layered ceramic roof tiles,
• Outside summer blinds,
• Outside winter blinds,
• Planning the garden for Tree shading.

Install thermally insulated window blinds for inside.
Build homes with double layered brick walls.

Also

5 star energy-efficient

Washing machine
Clothes dryer
Fridge
Freezer
Oven, heating top
Dishwasher
Inverter reverse cycle air-conditioning system

party_pants said:

Tau.Neutrino said:

Build homes with double layered brick walls.

Load-bearing brick walls are not a good idea in some seismic zones. Like most of the world.

Ok.

A double layered single brick design perhaps?

Like the double layered ceramic roof tile.

Tau.Neutrino said:

party_pants said:

Tau.Neutrino said:

Build homes with double layered brick walls.

Load-bearing brick walls are not a good idea in some seismic zones. Like most of the world.

Ok.

A double layered single brick design perhaps?

Like the double layered ceramic roof tile.

Like a double brick design, a double layered brick wall would have a vertical air cavity.

Tau.Neutrino said:

Tau.Neutrino said:

party_pants said:

Load-bearing brick walls are not a good idea in some seismic zones. Like most of the world.

Ok.

A double layered single brick design perhaps?

Like the double layered ceramic roof tile.

Like a double brick design, a double layered brick wall would have a vertical air cavity.

Sorry

Like a double brick design, a double layered single brick wall would have a vertical air cavity.

15 Energy Conservation Ideas

Turn your refrigerator down.
Use energy-efficient led light bulbs.
Clean or replace air filters as recommended.
Do full loads in the easing machine.
Use the cold wash option.set your pc or laptop
Use smart power strips.
Use individually switched powerboards.
Air-dry dishes and clothes.
Bake with glass or ceramic pans.
Cook using the right-sized burner.
Turn off lights when not in use.
Turn off appliances when not in use.
Turn down heating.
Turn down cooling.
Cook enough or multiple meals
Use a 2 litre thermo for coffee making and use a thermo mug for keeping it hot.
Use the Round Robin technique for shopping.
Set your pc or laptop to shut down when not in use.

Cook enough for multiple meals. Freeze them.

Tau.Neutrino said:

Two types of outside blinds

The top design would make a perfect winter blind as it is insulated on the inner side and has aluminium on the outside, it would help to keep the heat inside and the cold outside.

The bottom design would make a great summer blind for creating shade and allowing air circulation.

Tau.Neutrino said:

Tau.Neutrino said:

Two types of outside blinds

The top design would make a perfect winter blind as it is insulated on the inner side and has aluminium on the outside, it would help to keep the heat inside and the cold outside.

The bottom design would make a great summer blind for creating shade and allowing air circulation.

Geez. I will try again.

Two types of outside blinds

The top design would make a great summer blind for creating shade and allowing air circulation.

The bottom design would make a perfect winter blind as it is insulated on the inner side and has aluminium on the outside, it would help to keep the heat inside and the cold outside.

Tau.Neutrino said:

Tau.Neutrino said:

Tau.Neutrino said:

Ok.

A double layered single brick design perhaps?

Like the double layered ceramic roof tile.

Like a double brick design, a double layered brick wall would have a vertical air cavity.

Sorry

Like a double brick design, a double layered single brick wall would have a vertical air cavity.

Solar powered fans could help to move air up through the air cavity in summer.

Tau.Neutrino said:

Tau.Neutrino said:

20 Energy efficiencies for the home (Not a complete list)

Installing:

• Led globes,
• Roof insulation,
• Wall insulation,
• Underfloor insulation,
• Door seals top and sides,
• Door flaps bottom of door,
• Window seals,
• Inside door rollers (bottom of door),
• Exhaust fan seal flaps or exhaust fans with inbuilt flaps,
• Heat pumps,
• Solar panels + batteries,
• Solar hot water heating,
• Reverse cycle air-conditioning,
• Double glazed windows,
• Hot water on demand systems,
• Summer winter ceiling fans,
• Double layered ceramic roof tiles,
• Outside summer blinds,
• Outside winter blinds,
• Planning the garden for Tree shading.

Scratch all of that. Use a gunyah.

Tau.Neutrino said:

Tau.Neutrino said:

Tau.Neutrino said:

Install thermally insulated window blinds for inside.
Build homes with double layered brick walls.

Also

5 star energy-efficient

Washing machine
Clothes dryer
Fridge
Freezer
Oven, heating top
Dishwasher
Inverter reverse cycle air-conditioning system

Slap your clothes on a rock in a stream.

Triple glazed windows can reduce noise by 50 to 70% and energy costs by 50%

https://www.independent.co.uk/advisor/windows/triple-glazed-windows

Triple glazed windows often achieve A+ and A++ energy ratings, outperforming double glazing’s typical A rating. Their sealed design reduces drafts, condensation, and cold spots, making homes less reliant on central heating and leading to significant energy savings, potentially up to 50 per cent.4 Sept 2024

https://www.stopnoise.com.au/is-triple-glazing-better-than-double-glazing/

https://thermotekwindows.com.au/the-pros-and-cons-of-triple-glazing-windows-and-doors/

CO2 concentration has hit 426 ppm.

I’m old enough to remember back in the mid 1990s there were some ambitions to keep it below 400 ppm. I’m such a nostalgic.