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The Environment Thread :-)

58 watchers
Curly45
Curly45
21 May
9:41am, 21 May 2025
5,180 posts
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Curly45
Yep we've had the same Chris, been a good year to install.

Immersion heater controller sounds interesting. What does that do?

We are thinking about an electric boiler when ours dies, instead of a heat pump as that would be very expensive because of our house layout.
ThorntonRunner
ThorntonRunner
21 May
11:08am, 21 May 2025
8,405 posts
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ThorntonRunner
Octopus paid us 55p between 16/4 and 15/5. Just the 2nd month in a couple of years that they've paid us rather than us paying them :)
richmac
richmac
21 May
11:09am, 21 May 2025
33,986 posts
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richmac
Curly45 wrote:Yep we've had the same Chris, been a good year to install. Immersion heater controller sounds interesting. What does that do? We are thinking about an electric boiler when ours dies, instead of a heat pump as that would be very expensive because of our house layout.


I;ve been told they are expensive to run like a constantly boiling kettle
Chrisull
Chrisull
21 May
12:04pm, 21 May 2025
22,921 posts
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Chrisull
Brand - GivEnergy for inverter and battery.

Eddi/MyEnergi for the immersion.

Basically panels 1st go to the house, then to the immersion, then to the battery, then excess to the grid.

Immersion is oil heated, and they recommend you keep them on permanently rather than old style switching on and off (as it takes more power to heat up again). So thats' what we do. I think modern immersions aren't like kettles so much, they will maintain it at a 40-50C kind of range and when it dips give a little boost. So instead of the oil now, the solar panels will pick it up I believe. Certainly we've had hot water, full battery and excess going to grid (?) but they don't pay us yet.

Have signed up with Octopus to export, but I believe it takes a month to sort all the paperwork etc. So I assume it goes to the grid anyway? Just no cash for it, would that be right?
HappyG(rrr)
HappyG(rrr)
21 May
3:04pm, 21 May 2025
52,813 posts
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HappyG(rrr)
Chrisull wrote:Brand - GivEnergy for inverter and battery. Eddi/MyEnergi for the immersion. Basically panels 1st go to the house, then to the immersion, then to the battery, then excess to the grid. Immersion is oil heated, and they recommend you keep them on permanently rather than old style switching on and off (as it takes more power to heat up again). So thats' what we do. I think modern immersions aren't like kettles so much, they will maintain it at a 40-50C kind of range and when it dips give a little boost. So instead of the oil now, the solar panels will pick it up I believe. Certainly we've had hot water, full battery and excess going to grid (?) but they don't pay us yet. Have signed up with Octopus to export, but I believe it takes a month to sort all the paperwork etc. So I assume it goes to the grid anyway? Just no cash for it, would that be right?


Yip. Goes to grid and you just get nothing until they "approve" your connection. Isn't that a peach for the recipient?!

I'm GivEnergy too. Once you choose a tariff, let me know what you work out to be best (you don't have an EV, I don't think, so you'll potentially have a lot to export).

I have calculated (not very scientifically) that fully charging the battery at night 02.00 - 05.00 during cheap rate and fully discharging during day time peak 16.00 - 19.00 gives me best return. So even if I could not charge at night, and just use solar to charge the battery, I full charge and fully discharge every day. Be interested in someone else's calculation.

Downside of GivEnergy with Octopus is that I have to manually turn on and off the force discharge to the grid at 16.00 and 19.00, because GivEnergy haven't automated it. They do have an automation with Octopus's half hour variable tariff, but that didn't work out as well for us. :-) G
Chrisull
Chrisull
21 May
5:10pm, 21 May 2025
22,923 posts
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Chrisull
Ta for the advice, yeah sounds like I will have to do it all manually. I will undoubtedly calculate it and try and find the best rate.

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About This Thread

Maintained by HappyG(rrr)
Hi
I've seen environment (whether emissions, power, climate change, access to countryside, whatever you think of as "environment") discussed in various threads: Politics (obviously), the Electric Car thread fetcheveryone.com/forum/electric-car-anyone-61481/ , run free's excellent "Competitive Running and Keeping The Environment Clean" fetcheveryone.com/forum/running-competitively-keeping-our-environment-clean-60907/ my own Greta Thunberg thread fetcheveryone.com/forum/greta-thunberg---jfk-for-the-climate-generation-61044/ etc. but I haven't seen a general one.

So here it is. For those interested in the science, the politics, the action for (and I'll state that for me, this is mostly pro-environment, anti-emissions, anti-pollution etc.) and the hope for the future of our planet.

Useful links posted by contributors:
rf_fozzy: This is quite a good article about how disruptive technology works too: lesswrong.com
Basically about why Kodak completely missed the boat when it came to digital cameras timkastelle.org
run free's Grand Designs example Ben Laws is a man who built his dream: granddesignsmagazine.com granddesignsmagazine.com
Carbon Commentary carboncommentary.com
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