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1500 questions
6
votes
1 answer
How can I enforce the garbage recycling?
Despite we have adopted some European legislation here in Estonia regarding the recycling in 2004 and we have got some containers for sorted wasted on the streets for those environmental enthusiats, I am seem the only person who cares about sorting…
6
votes
1 answer
Determine the solar installation size based on W/m² solar irradiance data
I have access to live solar irradiance data (in W/m²) at each minute of the day in my location. How do I make use of these datas to determine the solar installation size (in kW)?
I guess what I don't really understand here is what really happens…
ttinggggg
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6
votes
2 answers
Trying to figure out what to buy for my solar power system
My plan is to get 4x 250w panels @24v, 6x 12v 200 ah batteries, a 60 amp charge controller and 1000w pure sine inverter. It will be a 48v system. How does all of this scale with each other?
Also I don't have a clue if this will even work so any…
Justin Crockett
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6
votes
2 answers
How large a solar panel would I need to electrolyse 1 liter of water?
I am interested to know how large a solar panel one would need to produce pure oxygen and pure hydrogen from sea water.
I already found the required energy here:
If you assume perfect efficiency.....in terms of power, this is 3.67 kW for one hour.
Hugh Jones
6
votes
3 answers
Good alternatives to a fuel oil heating system in an apartment block
I live in a building of 8 apartments, in Belgium. We share a communal fuel oil boiler in the basement to provide hot water and heat. For the latter, each apartment has radiators through which a hot liquid flows. We do not have gas pipes running to…
KieranPC
- 163
- 3
6
votes
1 answer
Are there different types of water-source heat pump?
I have heard multiple names for water-source heat pumps. What's the difference between something called a water-to-water heat pump, and a seawater heat pump? Are they just different names for the same thing?
good good good
- 175
- 3
6
votes
2 answers
Sustainable methods of cockroach control (Periplaneta americana)
A second significant pest issue we have here is that of the so-called American Cockroach, which seems to normally live outside near human activity and come inside at least a few times a year. Currently we control these with periodic, carefully…
Chris Travers
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6
votes
1 answer
Sources for the carbon impact of US corn ethanol?
I am struggling to find recent sources on the carbon intensity of corn ethanol. I find many sources from around 2007, but I want something a little more recent (preferably from this decade). This is a difficult topic; land changes, production,…
user2433
6
votes
1 answer
Energy requirements for sustainable food production system
Overview
Consider the following system for sustainable food production:
The purpose of this system is to provide an environmentally-friendly, semi- (or fully-) automated means to produce food for lots of people. Similar in nature to the Earthship…
Dave Jarvis
- 195
- 6
6
votes
6 answers
What's the best use for pig fat (lard)?
We have two Tamworth pigs coming back from the butcher tomorrow with a decent amount of fat (don't know how many pounds yet). What are the best and/or most economical uses of pig fat or lard?
I'm not just looking at cooking applications. Evidently…
corporeal
- 163
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- 4
6
votes
1 answer
What's the largest polyculture farm out there?
I'm curious if anyone has an information about the largest polyculture farms that have been able to be successful. Are planning and harvesting techniques good enough to make polyculture economically competitive at scale?
B T
- 161
- 2
6
votes
1 answer
Why are solar panels different colors?
Black,
Blue,
Light blue. I have noticed different colored solar panels everywhere I go. I have a black solar panel that is installed on a solar flash light I also look on other people's houses to see a blue colored solar panels. Every time I ride…
Ethan
- 163
- 3
6
votes
2 answers
How good is it to reuse water from plant pots?
I'm living in an apartment, and after I water my plants the water goes to plates below the pots. The pots are in a metallic structure above the plates, so I can take the plates to reuse the water (throwing it at the plants again).
This reuse seems…
Rodrigo
- 163
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- 6
6
votes
2 answers
Purchasing fairtrade supermarket bananas or unknown bananas from a local business owner?
Lately, I have been thinking about the above question.
By buying fairtrade bananas, I ensure that the producers get paid above market price. However, I do support large-scale retail corporations which usually don't see sustainability as their core…
orschiro
- 1,389
- 6
- 19
6
votes
2 answers
How can we dispose or recycle hair clippings from barber shops?
Near by my home there are barber shops where they throw hair clippings in the dustbin and when the contents are burned it gives a bad smell.
How I can suggest them to properly dispose or recycle the hair clippings, so we can prevent this bad smell. …
Yadav Chetan
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