Forum: Geothermal & Heat Pumps
07-31-24, 12:53 AM
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Replies: 0
Views: 13,849
Dual source heat pump
We all know of the ups and downs of both air source, and ground source heat pumps.
Imagine you go with the investment in GSHP, and then you notice that during the heating season you have quite a few...
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Forum: Solar Power
06-25-24, 08:24 AM
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Replies: 1
Views: 19,276
PV Inverter wiring question
Our 2.7kW PV system has 8 panels connected in series to a 3kW single-phase SolarEdge inverter. The existing panels are registered with the inverter during set up, so I can see each panel's output in...
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Forum: Energy Storage
06-07-24, 02:24 AM
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Replies: 7
Views: 37,122
So I came accross this article in PV Magazine...
So I came accross this article in PV Magazine (https://www.pv-magazine.com/2021/06/21/concrete-flywheel-storage-system-for-residential-pv/), about a French start-up 'Energiestro' working on...
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Forum: Energy Storage
04-09-24, 01:34 AM
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Replies: 1
Views: 14,284
Yes, there is interest!
Just a few months...
Yes, there is interest!
Just a few months ago I was reading about long-term heat storage in the soil under buildings.
One fellow stated that before pouring the foundations he buried some...
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Forum: Appliances & Gadgets
12-12-23, 07:37 AM
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Replies: 5
Views: 60,653
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Forum: Energy Storage
12-12-23, 02:39 AM
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Replies: 34
Views: 181,146
I added the heat trap and flap valve to the...
I added the heat trap and flap valve to the return from the house:
https://ecorenovator.org/forum/attachment.php?attachmentid=9497&d=1702369586
The additional resistance is evident from the...
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Forum: Appliances & Gadgets
12-12-23, 02:15 AM
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Replies: 5
Views: 60,653
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Forum: Appliances & Gadgets
12-05-23, 07:28 AM
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Replies: 159
Views: 349,297
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Forum: Energy Storage
11-27-23, 12:25 PM
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Replies: 34
Views: 181,146
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Forum: Energy Storage
11-08-23, 01:50 PM
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Replies: 34
Views: 181,146
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Forum: Energy Storage
11-04-23, 02:13 PM
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Replies: 4
Views: 31,170
Read a bit more on these. Turns out they can...
Read a bit more on these. Turns out they can switch between storing and producing energy very quickly, reaction time below 1 second. Many other types of batteries need to "rest" in between cycles to...
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Forum: Energy Storage
10-22-23, 12:16 AM
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Replies: 34
Views: 181,146
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Forum: Conservation
10-03-23, 12:15 PM
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Replies: 3
Views: 71,398
Good question!
The water in pipes will have a...
Good question!
The water in pipes will have a temperature of 40-70 deg C, while the basement is usually 15 deg c. I don't mind if the basement warms up by 1 or 2 deg, but don't want the water to...
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Forum: Conservation
09-30-23, 01:45 PM
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Replies: 3
Views: 71,398
How to insulate valves, filters, etc.
I am trying to better insulate my heat buffer, and the heating system's plumbing in general. Adding another layer of foam insulation and stuff like that.
But there are parts which are more...
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Forum: Other Improvements
08-05-23, 02:07 PM
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Replies: 1
Views: 63,426
Looks cool :cool:
But I wonder how long...
Looks cool :cool:
But I wonder how long those hoses and connections will last if they are constantly bending in the salt and UV?
Something purely mechanical might last longer.
Wave power has...
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Forum: Energy Storage
08-05-23, 01:59 PM
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Replies: 4
Views: 26,400
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Forum: Appliances & Gadgets
07-17-23, 01:01 PM
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Replies: 2
Views: 26,396
Screw-in heat exchanger
I once came across a picture of a HX like this
https://ecorenovator.org/forum/attachment.php?attachmentid=9490&d=1689616596
This would be good to screw into one of the 2" ports of my heat buffer...
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Forum: Conservation
05-28-23, 01:45 PM
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Replies: 6
Views: 67,949
Instead of completely disconnecting, could you...
Instead of completely disconnecting, could you add an additional thermostat in series, so it still turns on, but at a lower temp.
Or instead of a manual 2-postion switch, use a 3-position switch for...
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Forum: Energy Storage
05-19-23, 11:53 PM
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Replies: 19
Views: 47,441
I got this idea about small scale pumped hydro...
I got this idea about small scale pumped hydro yesterday.
Instead of pumping water above the surface to store energy, why not pump it to the surface?
I'm thinking about a well, and wells can be...
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Forum: Energy Storage
10-05-22, 12:14 PM
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Replies: 34
Views: 181,146
Update:
Last weekend I mounted the valve...
Update:
Last weekend I mounted the valve vertically (position #2 a few posts up), so that the weight of the flap holds back the flow when the pump is off. In fact, I even added a few washers to the...
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Forum: Energy Storage
09-25-22, 01:05 PM
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Replies: 34
Views: 181,146
I made the heat trap which dips almost all the...
I made the heat trap which dips almost all the way to the bottom of the tank:
https://ecorenovator.org/forum/attachment.php?attachmentid=9471&d=1664128136
Unfortunately, heat is still being sucked...
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Forum: Appliances & Gadgets
07-31-22, 05:42 AM
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Replies: 2
Views: 59,442
Old 6V battery - still good?
Helping family clean their house I found a 6V 4Ah sealed lead acid battery. Family said they don't need it, so I took it for some projects.
The label states the voltage should be 7.2-7.5V, but at...
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Forum: Renovations & New Construction
07-07-22, 01:15 PM
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Replies: 10
Views: 63,086
Wow:eek:
I never thought about hot the...
Wow:eek:
I never thought about hot the underground water line can get.
Not sure how long a run you have on your property, but maybe laying the main deeper under ground? It would be a bit cooler...
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Forum: Other Improvements
05-09-22, 01:51 PM
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Replies: 1
Views: 19,500
Screen door - need advice
A long time ago I made screens to put on the windows during mosquito season, now I would like to make a screen for the balcony door also.
The frames of the window screens are just simple...
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Forum: Energy Storage
04-27-22, 02:46 PM
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Replies: 34
Views: 181,146
Update.
I read about heat traps and concocted...
Update.
I read about heat traps and concocted something like this:
https://ecorenovator.org/forum/attachment.php?attachmentid=9453&stc=1&d=1651087611
The heat trap goes up ~35cm, then down ~20cm,...
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