Questions tagged [solar]
The solar tag has no usage guidance.
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Materials inside solar cells
For my thesis as a physics student, I am doing an LCA on PV modules. Does anyone know the percentage and purity of Si inside a solar cell? (e.g. is it 100% Si or 95% Si and 5% some other material)
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Inverter with open communication protocol
I want to set up a new solar installation in my home with gel batteries for normal domestic use.
I know little to nothing on the topic.
I would like an inverter that I can bring and/or make my own ...
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Request for Price Estimates on Solar Monocrystalline Double Busbar 540W Panels and Related Components EXW Dubai, UAE
I am looking for assistance in estimating the best available prices from major manufacturers for the following components, with delivery terms EXW Dubai, UAE:
Solar monocrystalline double busbar 540W ...
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Would it be technically correct to call stratospheric aerosol injection "chemtrails"?
There is a BBC article about geo-engineering being the subject of conspiracy theories, referring to a study by Dr Ramit Debnath which I assume is this (graphical abstract below).
My very brief reading ...
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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 ...
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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 ...
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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 ...
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Resources on reflective cooling
Preparing for the next heatwave with something more sustainable than air conditioning, I'm looking into the idea of installing cooling reflectors as promoted by the site www.meer.org (basically, ...
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Smaller 800W Off-Grid Solar Panel System Arrangement
I'm planning to setup a smaller 800W off-grid solar panel system for my weekend cottage in Western Europe.
I already bought the necessary parts, cables, and accessories, here's my design sketch for ...
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Can I use this "hydro" inverter with solar panels SMA hyroboy HB 1124
https://files.sma.de/downloads/HB1124-TEN093421.pdf
Im assuming the inverter does not know where the DC current is coming from as long as it is below the maximum current, or am I missing something ...
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Should I expand or duplicate my sailboat solar array?
I have a sailboat that currently has 2 100 W panels, in parallel, connected to Newpowa 30 A MPPT controller, connected to 580 Ah of 12 V lead acid batteries. Basically runs the fridge. Works well up ...
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How to use solar power with grid backup without net metering
So here is my situation. I am using a lot of electricity out of a couple specific outlets, 24/7. I want to install some solar panels, an inverter, and have these outlets (or possibly the whole house ...
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How much polysilcon is required to make 1GW of solar modules? [closed]
Could anyone give me a good anwser here, even an approximation?
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DIY portable solar panel mount
So I just bought one of the 28W Big Blue portable solar panels on Amazon and got myself a cheap camera tripod from a local garage sale, all for an upcoming camping trip. I want to use the tripod to ...
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Difference in Solar wattage between 24V and 48V system
[Cross-posted on Victron's community https://community.victronenergy.com/questions/85929/difference-in-solar-wattage-between-24v-and-48v-sy.html ]
Background: I'm on a boat with a 48V system and a 24V ...
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How does the afterheating function work for a solar hot water controller?
I have Resol DeltaSol BX controller for my solar hot water which I would like to configure best for my situation but the wording is a bit puzzling for me to understand. It was installed about 9 years ...
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