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8 views

How much weight would a wireless charging system add to an electric bus?

Wireless charging requires a number of 'receiving charging pad's and a 'management module' and I imagine there will be additional wiring. How much extra weight does this add to an electric bus?
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0answers
12 views

What's the carbon footprint of an average solar panel?

What's the carbon footprint of an average solar panel? Answer in need.
0
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0answers
12 views

What is the carbon footprint of production for an average electric car? What is the carbon footprint of driving a kilometer by electric car?

What is the carbon footprint of production for an average electric car? Likewise, what is the carbon footprint of driving a kilometer by electric car?
-1
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0answers
12 views

What's the average carbon footprint of a meal? [closed]

What's the average carbon footprint of a meal? In need for research.
-1
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0answers
14 views

“What's the carbon footprint of an average plane? What's the carbon footprint of an average flight?” [closed]

What's the carbon footprint of an average plane? What's the carbon footprint of an average flight?
1
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0answers
17 views

What is Body Shower Milk (common term in Germany)? Is it more sustainable than ordinary shower gel?

It looks like the term is only used in Germany. I tried to search for it and found some hints in a random forum. I do not know how trustworthy this information is. Errr, no. What is sold as "...
1
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0answers
28 views

How to correctly get rid of human poop?

I want to live alone in a floor above where I'm currently living cause I don't stand my family, only inconvenience, there is nothing not even tiles, I don't mind the discomfort but, how can I get rid ...
0
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0answers
12 views

Best solar cooker type for dim sunlight?

The commercially available solar cookers seem to use a variety of different technologies. I have seen ones that use mirrors, ones that use evacuate tubes, and other things, in different configurations....
2
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0answers
40 views

Is Marine Plywood better than plastic for the environment?

I work for a brewery and we have recently started using 3mm thick 140x90mm Pump Clips on our taps instead of 2mm thick PVC Pump clips. These are the little plaques we see when we order a beer at the ...
1
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0answers
22 views

Renewable garden watering system - 12v battery system (solar recharged) to ensure there is 50l of water at 20ft twice a week

I have a load of water butt rainwater storage linked to my gutter downpipes for my garden water needs, but I can't stand around waiting to fill watering cans from taps on butts, so occasionally (once ...
2
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2answers
70 views

In what ways can I upcycle my old, unused refrigerator?

I have an old fridge that has not been used in years, but I am hesitant to get rid of it as it is an antique. I would prefer to upcycle it into something else but am lacking in imagination. Does ...
1
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0answers
25 views

Do timber buildings absorb carbon in the long run?

One of the advantages of timber buildings is regularly said to be their ability to absorb carbon from the atmosphere. Wouldn't this require the timber used in the building to not decay, or at least to ...
3
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1answer
64 views

What plastics are safe/useful to melt?

I have seen a number of videos that talk about melting down HDPE and/or LDPE for craft projects. Some say these types of plastic are safer to some extent. I would like to do some crafts as well that ...
2
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0answers
33 views

Where can I find the paper “Life cycle sustainability assessment (LCSA) for products and processes.”

I am currently studying circular economy theory. More specifically life cycle sustainability assessment theory. And I notice that a paper in this area that presents a lot of citations is Finkbeiner, ...
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0answers
38 views

Are there generally accepted measures for the sustainability of buildings?

There are well known commercial certifications, such as LEED. They operate with proprietary points-based score cards. See here. The ecological footprint of people's lifestyles is regularly measured in ...
0
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0answers
21 views

Where can i find graywater reuse quality thresholds for different uses?

i'm having a hard time finding specific up-to-date sources that contain clear guidlines and regulatory quality thresholds for graywater reuse. The only thing i could find was the EPA 2012 report and ...
4
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0answers
49 views

Is manual sorting of household waste more effective than mechanical separation?

In theory people can separate waste much better than a machine, since they have more knowledge about the waste itself. In practice, with all my good will, I find that following the directions for ...
1
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1answer
77 views

What is the most sustainable choice for a domestic hot water system?

We currently have an ailing 14 yr old solar hot water installation. A few plumbers have given us the same story: due to the age and general condition of the system, it makes more sense to replace it ...
0
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2answers
49 views

How to prepare my home for vacation to reduce energy use?

When going away for vacation for a few weeks, what steps can I take to reduce the energy and water my home will use while I'm gone? I've already asked about what to do with a refrigerator, but I'm ...
3
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0answers
21 views

What is the connection between detergent enzymes and sustainability?

I was looking at the shelf with "ecological" detergents in a store and noticed that most of them boasted of being enzyme-free. I wondered why this is a preferable quality in a detergent, ...
2
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2answers
86 views

How to reduce energy usage of refrigerator while away?

I'm getting ready to take a trip for about a month. We'll eat all of the perishable stuff in our fridge/freezer, but this will leave lots of other things that will do just fine (frozen veggies, ...
2
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0answers
27 views

Designing an electrical off grid system for winter

I'm currently planning the conversion of a panel van into an RV including heating, water, and electrical. The part which I'm not confident about is the reliable supply of electrical power in the ...
2
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0answers
33 views

My solar inverter display volts but no amps and a few watts. What's wrong?

I have 150watts 7 solar panels of specs : max DC volts 20; max SC amps 8.02Amps. Individually checked all 7 solar panels short circuit amps and they are in 6.54 - 7.84amps range. Solar Inverter Specs ...
1
vote
1answer
38 views

Solar air heater inside the window?

I have an older Solar Venti solar air heater that's supposed to be installed on the roof, or on a wall. For various reasons it has not been installed .. lack of a suitable location. As it just ...
0
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0answers
32 views

Sustainable laptop stickers

I want to print logo stickers that will be put onto laptops. I would like to print them at a place that pays attention to sustainability e.g. stickers made of recycling paper, coating of recycled ...
4
votes
2answers
63 views

Are there any insect-based waste-separation techniques?

I'm learning about how black soldier flies and insects in general are used to turn organic waste into more insects, which are then harvested for protein-heavy feed for poultry and fish. A lot of ...
1
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0answers
33 views

Are soybeans mainly grown for animal feed or oil production?

In the great vegan vs. non-vegan environmental debate a big point of contention is the topic of animal feed. Vegans argue, that a large percentage of agriculture, namely 98% of soy production should ...
1
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0answers
36 views

Solution for reducing volume of plastic recyclables

I've been having issues with my indoors storage solution for plastics. Loose wrappers and containers from food products tend to take an unnecessarily large amount of space and without a way to ...
0
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0answers
29 views

Where can I buy samsung SDI ESS rackmount home batteries in the United States?

I am not interested in a Tesla powerwall for a variety of reasons - some of them having to do with non-standard form factor and some of them having to do with phoning-home and general network privacy ...
0
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0answers
56 views

Is Privet Hedge a “Living Desert”?

A friend of mine who is working for a big gardening center helped me lately to cut my green waste for the compost and realized the branches were Privet. He claimed a Privet-Hedge would be a "living ...
7
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2answers
111 views

How to get the most out of computer hardware before it becomes obsolete?

Let's say, i use my personal computer for office tasks only and am happy with its performance as long as the operating system and the browser receive regular security updates. What would be a ...
5
votes
1answer
108 views

Throwing organic waste on the ground

Here is a situation I often find myself in. I’m in a park (trees, grass, etc), I’m feeding a fruit to my kid. At the end when I’m left with the peel (or seed or whatever is the waste), I look at the ...
3
votes
1answer
79 views

Which global fertility rate would allow the human population to adjust to Earth's carrying capacity while maintaining an acceptable dependency ratio?

Humans currently consume the ecological resources of 1.75 Earths (https://www.footprintnetwork.org/). Assuming that global average consumption remains stable (less in the global North and more in the ...
2
votes
1answer
58 views

When/where is it feasible to use a solar cooker to boil water?

Can a parabolic reflector-type solar cooker of reliably boil water? If so, what major factors determine how much/how intense sunlight is required to do this how much water can be boiled how long the ...
3
votes
1answer
58 views

Any electric vehicle that can be used as a home energy storage?

I have a house with a solar array on top currently tied to the grid. I would love to be able to use an EV as a battery for my house, and after it charges up in the day be nice to use it for the ...
2
votes
1answer
47 views

How to reduce the environmental impact of drinks containers

I would like to help the owners of a pub (based in Milan, Italy) to decrease the environmental impact of the waste they produce. My intent is to make them buy the same food content (especially drinks)...
1
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3answers
73 views

How can an architect design a building to reduce landfill usage by occupants?

I'm currently working on a project with an organization that has four major goals for all of their facilities: Reduced energy usage Increased solar energy use Reduced water consumption Reduced ...
3
votes
3answers
111 views

Direct Electrical Heating

For a college project, I'm looking to learn about direct electrical and biomass heating as a means of decarbonization of our college campus? Where can I learn about these? Searching for direct ...
2
votes
1answer
52 views

How do I clean my avocado oil intermediate bulk container so I can store water in it?

I have two 275 gallon (1040 liter) IBC totes that used to hold avacado oil in one, and canola oil in the other. I want to use it for emergency drinking water. What is the best way to clean it and ...
2
votes
1answer
111 views

Should I purchase new tins or plastic refills for chocolate powder?

A few brands of chocolate milk mix come in re-sealable tins like this: It is also possible (and slightly cheaper) to buy 'refill packs', in order to reuse the tin. However, these refill packs are ...
1
vote
1answer
42 views

Could multiple ram pumps be used to fill a watertower for a pico hydroelectric system?

Since a watertower stores potential energy just like a reservoir does for a hydroelectric dam, could I use that to power a pico (<5kW) hydroelectric system for my homestead? Now, I have read that ...
0
votes
1answer
36 views

Creating a string of six 2V batteries in series to power an inverter

Background: I have a Magnum Energy MSH3012RV 3kw inverter-charger that runs on 12VDC and I'd like to be able to discharge around 250 to 300 AH between recharges (from 120VAC input) without the ...
5
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6answers
241 views

What can an individual do to meaningfully practice carbon capture?

There is a lot of information on the Internet about how an individual can lower or negate their carbon usage through various techniques and strategies but much less information on what a person can do ...
3
votes
2answers
134 views

Alternative to bananas in Europe

If you buy bananas in Europe, they usually come with a high CO2 level, since they are mostly produced overseas. Is there a fruit produced in Europe which comes quite close to bananas in terms of ...
2
votes
0answers
26 views

How much renewable energy is curtailed around the world?

CAISO, the California electric grid operator, provides daily and historical reports on wind and solar curtailment: I started looking for similar data from MISO, the grid operator where I live, ...
2
votes
2answers
62 views

Will negative power pricing counteract the growth in solar PV capacity?

In California, the real-time electricity prices routinely go negative. Here's pricing for the four load aggregation points for California on April 1, 2020 (source): This is due to the large amount of ...
2
votes
1answer
49 views

Did any country, city, or village implement a coffee separate collection with success?

Coffee is a wide produced and consumed drinking all around the world. After the use, exhausted coffee filters (wet coffee powder) are a very nutrient fertilizer. This brought some people to collect ...
3
votes
1answer
103 views

What to do if small amount is left in the toilet after flush?

Apologies in advanced for disgusting question. I share a bathroom with someone. He has started to get really mad that after I flush the toilet...not all the waste gets removed (95% of it does but some ...
6
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1answer
257 views

Is working from home a more sustainable choice?

Due to the recent COVID-19 outbreak and subsequent lockdowns in multiple countries, there have been reports of marked decreases in day-to-day pollution hanging over cities, such as this report on ...
3
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0answers
30 views

How much additional CO2 emissions will result from recent changes to US vehicle regulations?

From the Guardian, March 31, 2020: Trump to roll back Obama-era clean car rules in huge blow to climate fight (emphasis added): The Trump administration is rolling back the US government’s ...

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