Questions tagged [solar]

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3 answers
51 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 ...
  • 111
0 votes
1 answer
21 views

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 ...
1 vote
2 answers
38 views

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 ...
2 votes
1 answer
89 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 ...
  • 21
1 vote
0 answers
64 views

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

Could anyone give me a good anwser here, even an approximation?
  • 11
2 votes
1 answer
66 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 ...
  • 121
1 vote
1 answer
67 views

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 ...
  • 121
3 votes
0 answers
46 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 ...