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Post by Deleted on Feb 28, 2022 21:31:29 GMT
You also need to look at cars as giant batteries. Most cars are stationary most of the time. Something like 87% car do nothing and cab used as sources of energy selling power back to the grid when not wanted.
Welcome to a joined up world guys.
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Post by bracknellboy on Feb 28, 2022 21:46:36 GMT
I don't expect to see a large one built and running in the next ten years. I would point out someone proposed going for small ones. I'd be happy with none. I do believe that sun, wind and water can supply all our needs. The calcs are easy. Of course fewer nimbies would help and dum-arses who insist on heating houses without insulation or driving massive cars with one but in it. If the government are going for nuclear, small will save huge amounts of time and money. If eventually we can go totally renewable fine. Edit: It was RR suggesting small, I think it was basically modified nuclear submarine engines, which they can build easily.Yes RR are talking up their capability to provide "small scale" modular nuclear plants. Yes it is based on their historic supply of reactors for UK submarines. Perhaps not surprisingly, the biggest amount of 'headline news' on this was in the run up to them looking to secure significant funding from the Govt for the RR led JV to pursue the idea. Equally not surprising, its gone a bit quieter since they were awarded a significant amount of cash to pursue the idea. RRs PR machine likes to suggest that they can take a "proven" reactor and associated generation technology and clone it into civilian use - "Easily" is not a word I would use. They are not even close to getting 'design approval', not least 'cos they as yet don't have a 'design' for such a system (beyond concept stuff). Nor do they have "first mover advantage". NuScale in the US has been working on this a long time before someone in RR woke up up one day and thought "what if....". They are much further down the track. If nuclear fission is going to be part of our future mix, then I think the small modular has a lot going for it. The costs associated with one off traditional NNB is off the scale. Small modular offers the opportunity to look at doing it differently, ("production line" type manufacture of a single small scale approved system). But lets not be seduced into thinking that RR is somehow being 'radical' with proposing this. They are relatively late to the party, and are milking the 'build in UK' teat for all its worth. And to boot, they are not the only manufacturer of reactors for nuclear powered submarines, so aren't even unique in that regard.
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Post by bernythedolt on Mar 1, 2022 11:45:09 GMT
You also need to look at cars as giant batteries. Most cars are stationary most of the time. Something like 87% car do nothing and cab used as sources of energy selling power back to the grid when not wanted. Welcome to a joined up world guys. Nice in theory, but for the massive problem of charging cycles slowly wearing out the battery. My electric bikes quote a lifetime of 1,000 charge cycles. I presume EV technology is similar. Not many EV owners would relish the expense of a replacement battery every 3 years... and is all that extra lithium mining, processing and spent battery decommissioning any benefit to the planet overall?
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Post by captainconfident on Mar 1, 2022 13:01:07 GMT
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mogish
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Post by mogish on Mar 1, 2022 13:12:52 GMT
Dont tempt him! I still have 375 recharges left in my e bike.
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Post by Deleted on Mar 1, 2022 15:56:14 GMT
Once again a little knowledge is a dangerous thing. Your 1000 charges, are they full charges, partial charges what? What happens after 1000, does it just stop working or is it limited to just 98% of your original capacity? Finally, which battery system do you think you have?
I know, you've used Google....
So the mighty brains of the Brits are reduced to internet bunnies.
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keitha
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Post by keitha on Mar 1, 2022 18:00:59 GMT
Cant be partial charges otherwise hybrids would be useless in months !
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mogish
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Post by mogish on Mar 1, 2022 21:20:15 GMT
I'm guessing that rechargeable batteries lose capacity over time. It will depend on how they have been looked after. I try to keep my bosch battery around 60-80% if stored. Occasionally running down then fully charging. Bms tend to be quite clever in maximising efficiency. 4 years on and 3000kms, mine is still giving the same range as when new.
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mogish
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Post by mogish on Mar 1, 2022 21:25:08 GMT
Keeping on the good news thread..... I got 61p back from AC today....first in month😁
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keitha
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Post by keitha on Mar 1, 2022 21:36:19 GMT
Of course fewer nimbies would help and dum-arses who insist on heating houses without insulation or driving massive cars with one but in it. We have a block of flats in the village that are heated using a single large heat pump. Stupidly the Council included the heating cost in the rent so most days even in the depth of winter you see windows wide open, as there is no benefit to the residents in saving energy. This sort of thing is why I'm in favour of a carbon allowance per person
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Post by bernythedolt on Mar 2, 2022 13:33:10 GMT
Once again a little knowledge is a dangerous thing. Your 1000 charges, are they full charges, partial charges what? What happens after 1000, does it just stop working or is it limited to just 98% of your original capacity? Finally, which battery system do you think you have? I know, you've used Google.... So the mighty brains of the Brits are reduced to internet bunnies. My 'little knowledge' comes from the manufacturer's documentation that accompanied each of my five e-bikes, which states the number of recharge cycles that can be expected before the battery can be considered spent. That plus the practical experience of e-biking far longer than most, since the 1980s with my first Davall Electra. I was a bit of a pioneer, because I love the technology and always felt it had a real future in personal mobility. To answer some of your questions... All charges are from partially depleted to fully charged. Unlike your electric toothbrush, you rarely deplete a bike battery (or you face a tough pedal home on a heavy bike, unless you carry a spare as I have in the Alps in the past). Capacity drops gradually over time. The battery chemistry is slowly affected both by time and by recharging. I'm a relatively low user, so in my own case it's the former. I have three batteries for my aged Panasonic motor, the first two having lost significant range over the years, three Bosch motors with one battery each, and one Yamaha motor and battery. All are lithium (LiPo from memory, without digging out the paperwork). Different mountain bikes and road bikes for different purposes.
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mogish
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Post by mogish on Mar 2, 2022 15:26:26 GMT
Once again a little knowledge is a dangerous thing. Your 1000 charges, are they full charges, partial charges what? What happens after 1000, does it just stop working or is it limited to just 98% of your original capacity? Finally, which battery system do you think you have? I know, you've used Google.... So the mighty brains of the Brits are reduced to internet bunnies. My 'little knowledge' comes from the manufacturer's documentation that accompanied each of my five e-bikes, which states the number of recharge cycles that can be expected before the battery can be considered spent. That plus the practical experience of e-biking far longer than most, since the 1980s with my first Davall Electra. I was a bit of a pioneer, because I love the technology and always felt it had a real future in personal mobility. To answer some of your questions... All charges are from partially depleted to fully charged. Unlike your electric toothbrush, you rarely deplete a bike battery (or you face a tough pedal home on a heavy bike, unless you carry a spare as I have in the Alps in the past). Capacity drops gradually over time. The battery chemistry is slowly affected both by time and by recharging. I'm a relatively low user, so in my own case it's the former. I have three batteries for my aged Panasonic motor, the first two having lost significant range over the years, three Bosch motors with one battery each, and one Yamaha motor and battery. All are lithium (LiPo from memory, without digging out the paperwork). Different mountain bikes and road bikes for different purposes. Depletion will also occur quicker depending on mode selection, weather conditions , terrain and tyre type and pressure. As mentioned, running an e bike flat will be something you never do twice. 24kg e bikes are not something to be cycled without assistance.
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keitha
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Post by keitha on Mar 6, 2022 11:37:29 GMT
You also need to look at cars as giant batteries. Most cars are stationary most of the time. Something like 87% car do nothing and can used as sources of energy selling power back to the grid when not wanted. Welcome to a joined up world guys. I know a couple of people with EVs Both are very anti the Vehicle to Grid idea :- What if the power company deplete my battery and I cant get where I want to go because battery too low. What if they pay me 10p unit to take out of my battery but it's just cost me 20P to charge. Who will pay for the extra wear on the battery Now I look at it as most EV owners charge at low rates ie < 10p kWh. During the recent storms how many people with 100kWh of power sat in the car were in cold dark houses that V2G or V2H would have ameliorated ( OK not for 10 days or more but for a lot of people it would cover nearly a week ) To be frank I have battery storage, and provided I was appropriately compensated ( not making a profit ) I would be happy for my energy provider to control the charge and discharge of my battery. For those thinking current Electricity prices are ridiculous my export tariff ( Octopus ) doesn't drop below 30p kWh until 21:30 that's effectively the WHOLESALE price, I pushed just under 11kWh to the grid yesterday and will be paid over £4 The economics or getting solar are becoming compelling. last year I exported 2200kWh ( Lets say 10p unit this year ) I also saved 1000kWh of import ( lets say 25p a Unit this year ) that is £220 + £250 return on £7500 so call it £470 on a £7500 investment. Of course I haven't figured in that most of my import was on low or zero rates with Agile or Go ( 5p overnight )
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Post by Deleted on Mar 6, 2022 22:19:53 GMT
Bringing three threads together. Farage is going to attack the UK economy again by attacking green energy to keep us sucking on the Russian energy nipple. Stopping the this time will be life changing.
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Post by bracknellboy on Mar 16, 2022 10:51:07 GMT
Nazanin Zaghari-Ratcliffe on way home to UKWoohoo !!!!! Bloody marvellous. Though god knows what deal we've done with that regime to get it done. A few more still out there though. I hope she is going to be showered in the right kind of mental health support: she is going to need it.
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