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Do you also complain to your bank that they don't give you YOUR money back, they actually give you somebody else's?Because if not, you're a hypocrite.
As I said, you're a hypocrite.Do you have even have green electricity from EON?
Actually Alan your a fascist.https://www.theguardian.com/environment/2021/may/04/blustery-bank-holiday-helps-windfarms-set-new-clean-energy-record
Quote from: Petrochemicals on 05/05/2021 23:17:24Actually Alan your a fascist.https://www.theguardian.com/environment/2021/may/04/blustery-bank-holiday-helps-windfarms-set-new-clean-energy-recordIf I'm a fascist when the wind blows, how come everyone else isn't? Do I detect a non sequitur, or is this real eco-fascism ?
Nope its all bollocks Alan, at the moment in the UK something like 5 percent of our energy need come from sources not conventional. I see the UK has signed up to 85 percent reduction in 20 years, given it has taken 10 years to get 5 percent, This is what is called window dressing .I do not use such language frivolously either.
Quote from: Petrochemicals on 05/05/2021 21:27:34Nope its all bollocks Alan, at the moment in the UK something like 5 percent of our energy need come from sources not conventional. I see the UK has signed up to 85 percent reduction in 20 years, given it has taken 10 years to get 5 percent, This is what is called window dressing .I do not use such language frivolously either.What's important isn't straight-up energy, it's the amount of exergy:https://en.wikipedia.org/wiki/ExergyIn other words, just because total thermal energy production is some number of exawatt-hours or whatever, how much of that is actual usable energy?To take the example of petroleum, a car is something like 20-30% efficient. So if you compare an electric car with a petrol car, the petrol car would seem to be enormously more energetic. But in reality, they have not that dissimilar range. So the exergy is in reality similar.Or, to take another example, if you heat your house with an air-source heat pump, how much electricity is used compared to burning gas?The point is, by wrongly, directly comparing electricity with thermal energy, you are WILDLY exaggerating the scale of the problem. By a factor of about three. So really we're more like 30% of the way there (roughly).
But when you add in the losses for transmission, an electric car is about 55 percent efficient
And they may use less electricity during peak hour, if they use the car battery to supplement the household electricity consumption.
Quote from: evan_au on 06/05/2021 08:40:34And they may use less electricity during peak hour, if they use the car battery to supplement the household electricity consumption.You have hit upon the real purpose of an electric car: it makes the planet "greener" as long as you don't use it!
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Quote from: wolfekeeper on 06/05/2021 01:13:16The point is, by wrongly, directly comparing electricity with thermal energy, you are WILDLY exaggerating the scale of the problem. By a factor of about three. So really we're more like 30% of the way there (roughly).Not really, electricity looses about 30 Percent in transmission.
The point is, by wrongly, directly comparing electricity with thermal energy, you are WILDLY exaggerating the scale of the problem. By a factor of about three. So really we're more like 30% of the way there (roughly).
In that case we need to include storage inneficiencies too.
electricity looses about 30 Percent in transmission.
n the UK, transmission losses were 7.5% as of 2017
You can also get carbon credits for regrowing a forest that got cut down a century ago. And trees continue growing even in light winds.
Quote from: Petrochemicals on 06/05/2021 06:28:32Quote from: wolfekeeper on 06/05/2021 01:13:16The point is, by wrongly, directly comparing electricity with thermal energy, you are WILDLY exaggerating the scale of the problem. By a factor of about three. So really we're more like 30% of the way there (roughly).Not really, electricity looses about 30 Percent in transmission. Nope. In the UK, transmission losses were 7.5% as of 2017, and I'm imagining they're pretty similar in 2021.
Quote from: alancalverdIn that case we need to include storage inneficiencies too.If you were storing energy from a coal-fired plant, then you would need to include storage inefficiency in calculating the CO2 output.- But if the electricity from rooftop solar is being temporarily stored in a car battery, there is no extra CO2 output due to power lost in charging/discharging the battery.- There is the additional possibility that stored rooftop solar power could displace peak-hour fossil power, reducing CO2 output.Quote from: alan calverdelectricity looses about 30 Percent in transmission.Quote from: Wolfekeepern the UK, transmission losses were 7.5% as of 2017This is only important if you are generating your power from CO2.- If you are generating power from green sources, the transmission losses do not cause an increase in CO2 emissions.- And if you are generating power from your own rooftop solar, the transmission losses will be a lot lower than 7.5%.