The Environment Thread :-)

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Fields
Fields
Mar 2022
12:20pm, 12 Mar 2022
3,453 posts
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Fields
Orientation of roofs for the places I’m looking at seem to be 200-240 degrees ie SSW to WSW

Houses are in an elevated position - this is roughly the aspect

jda
jda
Mar 2022
2:04pm, 12 Mar 2022
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jda
There are on-line calculators that can tell you how the potential power generation varies depending on roof orientation and also location.
Fields
Fields
Mar 2022
2:10pm, 12 Mar 2022
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Fields
Ah that’s good. I’ll save it for when I’m on the computer doing some deep research
rf_fozzy
rf_fozzy
Mar 2022
2:10pm, 12 Mar 2022
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rf_fozzy
South facing gives you the biggest peak power, but an E-W orientation smooths generation out over the day better - in particular you get power generation into the evening when demand is higher (Roof pitch also makes an impact).

The PV+battery would of course have a similar effect.

For reference the back of my house is approx SE facing and the front NW.

My plan is to have PV on the back asap, but then add further panels to the front to get summer evening generation when I can afford it. Battery probably first though.

The dilemma I'm having is currently whether to cover the back roof with PV (think I can fit 12 1.5mx1m panels) or whether to stick a couple of Solar Thermal for hot water on the back too. That probably reduces my PV to 9 panels at the back.
Fields
Fields
Mar 2022
2:13pm, 12 Mar 2022
3,458 posts
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Fields
I presume you’re a bit screwed if you want a loft conversion down the line. And if you need a new roof to accommodate the panels
rf_fozzy
rf_fozzy
Mar 2022
2:16pm, 12 Mar 2022
16,782 posts
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rf_fozzy
Not necessarily in either case.

Although skylights can be problematic.
Fields
Fields
Mar 2022
2:57pm, 12 Mar 2022
3,460 posts
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Fields
Most loft conversions I’ve been in have a skylight on one side, dormer on the other. Not an issue for me anyway
HappyG(rrr)
HappyG(rrr)
Mar 2022
2:01pm, 16 Mar 2022
41,767 posts
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HappyG(rrr)
https://www.youtube.com/watch?v=Ui6wWzxCrQ8


Iron - Air batteries for grid storage - will they be suitable for home too?

1/10th of the cost of Lithium Ion per kWh, abundant source of material, non-toxic etc. :-) G
fuzzyduck79
fuzzyduck79
Mar 2022
6:30pm, 16 Mar 2022
1,001 posts
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fuzzyduck79
I've ordered a Tesla Powerwall 2 with the backup bit in case of a power cut.

Solar panels are not that practical, roof faces south but the space available isn't great and I suspect I will get knocked back for planning (conservation area)

Might approach that bit again in 18 months when I think there will be a tilt towards more people being given permission for them even if they live in a conservation area.

Planning to fill the battery every night on off peak rates and that will cover 90% of our peak usage. Not confident that the off peak rates can last forever, as EV ownership climbs I think it will reshape the pattern of demand on the grid.
run free
run free
Mar 2022
7:18pm, 16 Mar 2022
4,930 posts
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run free
You using Octopus Go?

About This Thread

Maintained by Merry Christmas and Happy NewG(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

Useful Links

FE accepts no responsibility for external links. Or anything, really.

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