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To preface, I am not trying to nitpick here. I am generally curious. Is this a correct usage of amortization? https://www.merriam-webster.com/dictionary/amortization
I don’t know, I’m not a native English speaker. I meant that: “to gradually reduce or write off the cost or value of (something, such as an asset)”
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Actually my experience is the opposite. In colder climates such as Russia, Finland I have seen room temperatures to be quite mild, above 20C for sure. However, in Italy in winter it is quite cold inside. Needless to say that thermal insulation is awful in IT.
Mine too. I'm from Michigan and my wife is from Hong Kong. In HK they don't have heating at all, and they generally keep the windows open all the time because it's so humid. It's usually pretty mild in the winter, but they have "cold snaps" where it might only be 12C; and if it's 12C outside, it's 12C inside. They just put on more clothes. So in a reversal of the stereotypes, she's usually the one wanting to turn the…
Earlier quoted context omitted.
To preface, I am not trying to nitpick here. I am generally curious. Is this a correct usage of amortization? https://www.merriam-webster.com/dictionary/amortization
I don’t know, I’m not a native English speaker. I meant that: “to gradually reduce or write off the cost or value of (something, such as an asset)”
So to amortise the carbon cost we take the embodied carbon, plus the operation carbon over a time frame. If the operational carbon is negative we would expect that at some point it would break even.
So to help with the English, I don't think it makes sense to talk about the amortisation during the change over since that is just the embodied carbon. But I think it definitely makes sense to talk about the amortised cost over some other time period after the change over.
It would have been interesting to also estimate how much CO2 would be reduced if instead of a glass roof they used a normal properly insulated roof. So we can see what is the CO2 cost of a stylish glass roof. Note: I suggest using underfloor heating, it should be more efficient with a glass roof, because there is less hot air to raise to the top of the house.
Degree days work better in regression as, assuming the correct base temperature is chosen/calculated, heating degree days are directly proportional to heating energy consumption (including being zero when it is warm enough that no heating is needed) and cooling degree days are directly proportional to cooling energy consumption.
More info and data here: https://www.degreedays.net
including an article explaining the process typically used for before/after calculations:
https://www.degreedays.net/calculate-energy-savings
Disclaimer: I work for the company behind that site, and yeah I know it looks a bit dated :D
Is triple glazing still not a thing in most places? It's become pretty much standard here in Romania in everything but the cheapest windows.
Is triple glazing still not a thing in most places? It's become pretty much standard here in Romania in everything but the cheapest windows.
It drives me up the wall, winters are not long and it doesn't get that cold but there's a few days a year when the weather drops to around 12 degrees celcius within my apartment (so 54 degrees Fahrenheit) and as someone from colder climes that's used to central heating, I'll say that I much prefer a cold winter with a warm home than a mild winter with a super cold home. I've seen the same when I lived in Japan...
Additionally due to the poor insulation, you get to hear the noise outside quite a bit which I personally hate.
Is triple glazing still not a thing in most places? It's become pretty much standard here in Romania in everything but the cheapest windows.
I wish! In Asia, single-pane/single-glazed is pretty much the standard. Even in 3600 usd/month apartments in Hong Kong, it's very unlikely you'll see double glazing. It drives me up the wall, winters are not long and it doesn't get that cold but there's a few days a year when the weather drops to around 12 degrees celcius within my apartment (so 54 degrees Fahrenheit) and as someone from colder climes that's used to…
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> annual carbon budget of each person is about 3 tons per person To put that stat in perspective, the average carbon emmisions per person [0]: Qatar is almost 40 tonnes pp United States, Canada, Australia is about 15 tonnes pp Switzerland, France, Italy, under 5 tonnes pp South Sudan is about 0.13 tonnes. It really puts in perspective how much wasteful carbon reduction and lifestyle changes are needed for us to have…
Remember that these figures include indirect emissions such as the ones made by the government on your behalf to maintain, for example, carbon expensive infrastructure. The roads are a big part of that in the US. American suburban car dependency needs to die.
All construction activities including roads, account for about 10.6% of emissions.
For comparison energy use inside buildings accounts for 17.5% of emissions. Transport emissions (Land, Air, water) account for 16.2%.
There are absolutely lifestyle choices at play here: Size of houses, size of car engines, car tonnage, commute distances, Travelling/Shopping habits.
We cannot change minds and infrastructure overnight, the second best thing we can do at a policy level is to (magically) find ways for our energy production to not depend on coal/natural gas.