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Questions tagged [solar]

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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 ...
User65535's user avatar
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1 vote
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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
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2 votes
1 answer
53 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
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
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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, ...
javert's user avatar
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1 vote
3 answers
503 views

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 ...
Rick's user avatar
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1 answer
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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 ...
wesleyPI's user avatar
1 vote
2 answers
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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 ...
Will Nirvana's user avatar
2 votes
2 answers
464 views

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 ...
Knr's user avatar
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1 vote
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202 views

How much polysilcon is required to make 1GW of solar modules? [closed]

Could anyone give me a good anwser here, even an approximation?
grant's user avatar
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2 votes
1 answer
94 views

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 ...
Jason O's user avatar
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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 ...
Tyler A.'s user avatar
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3 votes
0 answers
74 views

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 ...
Graham Chiu's user avatar