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Fronus Inverter Issue - PV Input Voltage Fluctuating, but Zero PV Input Watts and Amps

I'm seeking assistance with an issue I'm experiencing with my Fronus inverter. After two years of proper operation, I've noticed the following problem: PV Input Voltage: 90V-220V (fluctuating ...
Muneeb's user avatar
  • 1
3 votes
0 answers
39 views

Does the 15 minute city concept have an answer to the two body problem?

The 15 minute city is defined by wikipedia as: The 15-minute city (15mC) is an urban planning concept in which most daily necessities and services, such as work, shopping, education, healthcare, and ...
User65535's user avatar
  • 386
2 votes
1 answer
35 views

In an air-conditioned house, is the dryer more energy-efficient than hang-drying?

When the air conditioning is running, which consumes the least energy: using the dryer (which sends the humidity outside) or indoor air-drying (which requires the air conditioner to remove the ...
Dan R.'s user avatar
  • 121
1 vote
0 answers
30 views

Would adding toads to my farm change the food chain?

I'm a farmer and I'm having trouble with bugs I don't want to use chemicals on my products so if I brought toads into my farm would it change the food chain?
Charles rubeccs's user avatar
2 votes
0 answers
17 views

is it possible to use chop n drop and compost instead of animal manure?

As the title states, we grow fruit trees in the wet humid tropics in ecuador but we see great result when we buy animal manure, however this increases the bottom line of those that raise animals and ...
boris's user avatar
  • 21
3 votes
1 answer
49 views

If I rip and scrutinize a frozen food box, and it doesn't seem to have any thin plastic coating, can I recycle it?

Here in Toronto, the city categorically says that frozen food packaging is non-recyclable, and should go in the garbage. From what I've read, the problem with frozen food packaging is that it's "...
unforgettableidSupportsMonica's user avatar
2 votes
1 answer
34 views

How can I make a biodegradable large wooden container that is waterproof?

I am looking for a way to make a large wooden container , about 2mx2mx1.2m (Sides x Height), built out of wood, hold water. Everything involved in the construction has to be 100% biodegradable. The ...
ElNuevo's user avatar
  • 21
3 votes
0 answers
13 views

Carbon Footprint Quantification (ISO updates)

How do we compute the carbon footprint for an item? One option is to follow the methodology outlined in ISO 14067. It appears that that standard was first drafted in 2013 and that standards are ...
Bill Bradley's user avatar
3 votes
2 answers
67 views

Alternatives to solar panels/shingles?

Are solar panels the only option for running appliances without use of the power grid? As someone with an apartment, I have a decent-sized balcony, but not enough to lay out an array of solar panels. ...
rbhat's user avatar
  • 361
0 votes
0 answers
16 views

Calculating basal area per acre from variable radius plots

I have a variable-radius forest inventory that contains diameter at breast height (DBH) and basal area factor (BAF) data for each tree. I'd like to calculate the basal area per acre, but since the ...
brlockwood's user avatar
0 votes
0 answers
20 views

Data of waste managed through wastewater treatment plant in the U.S

for a research report, I have been looking for the total amount of waste (TW) managed through the wastewater treatment plant (WWT) in the U.S. for any of the last six years—an exhaustive search. ...
afdez's user avatar
  • 1
2 votes
3 answers
61 views

Can I use multiple small inverters for individual circuits in parallel instead of one large inverter?

I tried searching the internet, and everything I found was about using inverters in parallel seemed to be for coordinating multiple inverters supplying to a single bus. I'm curious about using ...
abalter's user avatar
  • 121
3 votes
0 answers
47 views

Is reindeer meat sustainable?

Beef is generally considered unsustainable, since cows are ruminants that fill the atmosphere with methane. The greenhouse gas effects are massive per a kilogram of produced beef. However, something ...
juhist's user avatar
  • 5,099
3 votes
1 answer
57 views

Why do people produce corn and grains overall currently? Seems neither unsustainable nor profitable. Am I missing something?

(apparently there is not an agriculture substack so I'm asking here) I am researching homescale production of grains and vegetables and when it comes to grains in general I keep scratching my head ...
javert's user avatar
  • 123
4 votes
2 answers
58 views

In which garbage container should I throw the mug from the coffee maker?

I live in Spain. In which container should I throw this - the mug from the coffee maker? It has plastic, glass and metal. The green container is for glass. The yellow container is for plastic and ...
Arwenz's user avatar
  • 141
4 votes
0 answers
44 views

How "eco" is the (3hr+) Eco mode on dishwashers

Our domestic dishwasher has an "Eco" mode that takes around 3.5 hours to run. I presume that the time includes lots of resting time to allow the contents to soak. However, I find it very ...
Cheeseminer's user avatar
3 votes
0 answers
35 views

Measuring Home Heat Loss

I am interested in testing/measuring my house to see how leaky it is and how bad the insulation is. If my house is poorly sealed and insulated then I will know how to improve it and I can retest it ...
Jake's user avatar
  • 131
3 votes
1 answer
45 views

Do whirlybirds rotate from an internal air current?

I understand that whirlybirds are designed to spin with the wind creating a vacuum inside and hence draw out air in a roof space. What I'm curious about is whether an air current from inside a roof ...
Steve's user avatar
  • 31
0 votes
0 answers
18 views

Does DEF really reduce NOx emissions by 70-90%?

Is there a discussion about the usefulness of DEF or is it pretty much a clear cut wonder-weapon against emissions? I read somewhere that NOX can disappear within seconds spontaneously and its not ...
user1721135's user avatar
0 votes
5 answers
85 views

Is it sustainable to eat meat that would otherwise go for animal feed?

It is possible to purchase offal mostly from cows and pigs at the butcher. While this is generally sold as dog food it is treated with human food hygiene standards at my butcher at least. I am ...
User65535's user avatar
  • 386
0 votes
0 answers
24 views

What are the best medicinal plants that can be grown in a backyard or kitchen garden?

The ones that I already have: Chicory: Known for its digestive benefits, chicory can help stimulate appetite and aid in digestion. Yarrow: Yarrow has antiseptic and anti-inflammatory properties, ...
Alice's user avatar
  • 1
0 votes
0 answers
18 views

Oekobaudat API - Data structure changes and staying informed

I'm working on a project to automatically enrich building information models with EPD data using the Oekobaudat API (https://www.oekobaudat.de/en.html). However, I've recently encountered an issue ...
PlagTag's user avatar
  • 101
2 votes
1 answer
50 views

What's the proper cable to connect this power station to a solar panel?

My uncle gave me his old 1000w portable power station. I already have a Bluetti SP120 portable solar panel that has mc4 connectors. I'd like to use this to the power station. I tried googling it to no ...
Christian Burgos's user avatar
1 vote
0 answers
20 views

Controlling underfloor electrical heating

What is the most cost effective form of controlling the electricity use whilst still having toastie warm feet on the tile floors? We currently have underfloor electrical heating on room air ...
Andrew's user avatar
  • 11
0 votes
0 answers
20 views

Ensuring Long-Term Data Accessibility in Life Cycle Assessment (LCA) for the Building Sector: Strategies and Challenges

I'm currently dealing with a challenge regarding the long-term accessibility of data in Life Cycle Assessment (LCA) setups, particularly within the Building sector. One recurring concern is ensuring ...
PlagTag's user avatar
  • 101
1 vote
0 answers
37 views

Are there sustainable footwear alternatives to leather boots/shoes?

I'm trying to make sure my next main set of shoes aren't just cheap plastic tat, but I'm struggling to find good alternatives. My criteria are: Good enough shape to walk in all day without damaging ...
thosphor's user avatar
  • 201
0 votes
3 answers
98 views

Why are EVs tagged as green when they consume so much?

There's a lot of greenwashing when it comes to electric vehicles, no doubt. One major point I noticed that seems to slip through the cracks is that they don't need to be as fast as they are. The ...
yarns's user avatar
  • 101
0 votes
0 answers
22 views

Infrared microwave

Microwaves are very efficient because they heat the food much more than the (highly reflective) walls of the oven. However, they heat the food throughout and thus won't make a nice crisp. Most metals ...
Kevin Kostlan's user avatar
0 votes
3 answers
73 views

What is an environmentally friendly alternative to bubblegum for freshening one's breath?

In North America, what is a more long-term sustainable alternative to bubblegum for freshening one's breath? Suppose that x and y are elements of the set of all substances edible to men, women, and ...
Samuel Muldoon's user avatar
3 votes
2 answers
117 views

Homescale designs for plastic incinerators?

I'm under the impression that it's better to burn the plastic and maybe get a bit of energy from it than disposing it somewhere only for it to deteriorate into many microplastic particles. That said, ...
javert's user avatar
  • 123
2 votes
5 answers
117 views

Can a significant pay rise realistically not affect my carbon impact?

In a previous part of my life, to reduce my environmental footprint, I consciously kept my salary low. My thinking was, even saving the money wouldn't help, as banks would invest them in energy ...
bjornte's user avatar
  • 129
0 votes
1 answer
84 views

Powering a small apartment

I recently saw a sale on EcoFlow products (in this case, an EcoFlow Delta Pro Ultra Starter Kit) so I decided to contiue researching ways to power up my small apartment without having a rooftop full ...
rbhat's user avatar
  • 361
0 votes
0 answers
24 views

Where can I find South and South East Asian fish fingerlings in Europe?

I am interested in farming South and Southeast Asian fish species (e.g., Labeo catla, Labeo rohita, Heteropneustes fossilis, Channa punctata, etc.) in my backyard pond in Germany. How can I obtain ...
user366312's user avatar
2 votes
0 answers
45 views

How to properly dispose of foreign soil?

Long story short, had some soil stuck to a vegetable that ended up passing customs (got waved through by the customs officer as they were reasonably confident there should be none present, despite ...
Gimmick's user avatar
  • 21
1 vote
1 answer
58 views

What material is more biodegradable than plastic bristles for a toothbrush?

What sturdy fibres are more biodegradable than plastic bristles? Assume the bacteria which eat the toothbrush bristles are a 95% or greater match in DNA comparison to bacteria which pre-date the year ...
Samuel Muldoon's user avatar
2 votes
1 answer
81 views

What type of financing is compatible with Degrowth?

Since Degrowth is a political, economic, and social movement based on ecological economics, anti-consumerism and anti-capitalism. I wonder what type of investment could be compatible with Degrowth. ...
Chicago1988's user avatar
2 votes
0 answers
27 views

Incubated chickens: how much of behaviour is nature vs. nurture?

I have dabbled with keeping some chickens in the back yard so have some basic knowledge from observing them, but I'm by no means a chicken eggspert. I know that different chicken breeds have been bred ...
frIT's user avatar
  • 271
2 votes
2 answers
128 views

What is the environmental impact of replacing a functioning furnace with a heat pump?

It's generally accepted these days that electric vehicles are better for the environment than similar gas-powered models. Despite that, I have heard (and this very site confirms) that the most ...
TheyLetMeBeAHomeowner's user avatar
3 votes
1 answer
53 views

Why is it easier to retrofit an AC-coupled than a DC-coupled battery to an existing domestic PV installation?

Not wishing ever to charge a (prospective) house-battery from the grid, naively, I think of a DC-coupled battery as a sort of capacitance between existing solar panels and their inverter. Again, ...
Robin Betts's user avatar
2 votes
0 answers
54 views

How many miles per year is too few to make an EV more sustainable than a small petrol car

I need a car for occasional short journeys. My yearly millage will probably be less than 2000 miles. Is it worth getting an EV or will a small petrol be more environmental. I’ll be buying used, ...
Will's user avatar
  • 121
2 votes
1 answer
23 views

Short Life of a Battery in a Solar Cell Garden Light

I have the small garden lights with the LED lamp powered by a AA Ni-MH battery that is recharged by a solar panel on the top of the light fixture. These lights loose power and go dark within a couple ...
Harry Bridge's user avatar
2 votes
1 answer
137 views

Is this symbol of three arrows pointing away from a person with a arrow surronding him a recycling symbol?

I used up a bottle of moisturising cream today, and so I looked around the bottle to find out whether I could recycle it or not. I found this symbol of a person with three arrows coming out of his ...
Newbyte's user avatar
  • 187
2 votes
1 answer
56 views

Is there a business model to do carpentry without a vehicle?

I'm currently a co-owner of a small renovations contractor in a small city (~50k) in northern Wisconsin. My equipment consists of a 7x14' trailer full of tools, large diesel truck, and minivan. All ...
cyanrarroll's user avatar
1 vote
0 answers
12 views

Any source of recycled / second-life PV panels in Ireland?

Does anyone know of any source of recycled / second-life PV panels in Ireland ? I have a idea for a pathway to reuse panels but I'm missing the original source. Many panels that are rejected from ...
carbontracking's user avatar
3 votes
2 answers
216 views

If the groundwater is unsafe to drink, does that make the sap from a maple tree unsafe to use for maple syrup?

I tried googling an answer to this one, but this is one of those times when Google just didn't provide an answer. It says that trees are good at removing contamination from soil and that harvested ...
userLTK's user avatar
  • 131
3 votes
2 answers
107 views

How do buildings with eco-electricity know their electricity is eco?

Walking around the city centre of Warsaw I saw a poster placed by a construction zone of a new skyscraper. The poster said something along the lines "our building will use electricity from ...
Lukasz Skowron's user avatar
2 votes
2 answers
51 views

Sustainability and ethics of buying a domestic battery from a higher emissions country

I've been mulling over whether to have a domestic battery installed. I already have solar panels. I know that installing a battery will reduce my reliance on grid electricity, however I have ...
Tally's user avatar
  • 175
3 votes
1 answer
775 views

Inexpensive way of permanently running a fridge with solar power?

I have about USD $3,000 that I can use to invest in solar-powered alternatives at my apartment. Since I live in Latin America, my small rooftop receives tons of sunlight 12 hours/day but is not big ...
rbhat's user avatar
  • 361
6 votes
1 answer
106 views

Does my facial scrub contain microplastics?

I was wondering if my facial scrub contains any microplastics. In particular, the tiny beads that are inside the soap, are they made of plastic? Are they polluting the waste water or they just ...
user3161330's user avatar
1 vote
2 answers
66 views

For Electric vehicles, HOW are miles per gallon equivalent (or L/100 Km) calculated, accounting for different sources of energy in the grid?

Could someone giver a clear and authoritative answer on HOW miles per gallon equivalent (or L/100 Km) are calculated for Battery electric Vehicles like Tesla Model 3 AWD long range? On the Electric ...
Sanjay Biswas's user avatar

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