Questions tagged [solar-energy]

Form of renewable energy emitted by the Sun, coming in two flavours: photovoltaic and thermal. The former, especially, relates closely to electrical engineering since it is traditionally harnessed through semiconductor devices and converted to AC in order to feed the electric grid or individual users' homes.

Filter by
Sorted by
Tagged with
3
votes
1answer
3k views

Modeling a solar panel for simulations

I need to simulate a power conversion system (using SIMetrix/SIMPLIS) in which solar energy is captured by a solar panel, which is then connected to an inverter for supplying current to the grid. ...
5
votes
1answer
105 views

Can a solar inverter be damaged if installed capacity is much larger than demand?

I had a dispute with my fellow. In his opinion, a power inverter can be damaged if the load is much lower (e.g 100W) than installed capacity (e.g. 10kW) of the solar system. I am of the opinion that ...
1
vote
5answers
102 views

How Can I connect My Solar Power System? [closed]

I brought this 50A Solar Controller now I want to connect an inverter to it and they said to connect the inverter directly to the battery. I also brought a 100W Solar Panel and MC4 Wires, etc What ...
3
votes
2answers
330 views

LT3652 Inductor Selection

First question here In my system, a LT3652 IC should drive a solar panel with these specifications: Voc = 9,94V Vp = 8,54V Vmp = 7,95V Isc = 0,90A Wp = 7,15W to charge a 3,7v Li-Ion battery at ...
2
votes
3answers
103 views

Problem with a relay decoupling voltage

I made a simple circuit to alternate its output between two inputs: a photovoltaic panel and a 12V DC voltage source. The schematic: The step source represents the photovoltaic panel and the two ...
1
vote
0answers
777 views

Grounding Neutral Off Grid Solar

Is it recommended to ground the neutral line in an off grid solar system? A nonisolated inverter would be by definition wired this way, right? I believe that in home electrical systems neutral is ...
0
votes
1answer
398 views

What is needed to change in this SparkFun solar charger module to reach 2A of current?

This open source product from Sparkfun (named Sunny Buddy) features Linear Instruments LT3652 MPPT li-ion/li-poly battery charger IC that can support up to 2A charging current. Unfortunately, the ...
0
votes
2answers
2k views

18V/5W solar panel to trickle charge a 12V car battery?

I'm running a small Arduino project out of an old 12V car battery (that was on my car since 2008 till 2015). I also have a 18V/5W solar panel. Can I connect them together so the solar panel charges ...
0
votes
1answer
72 views

12V - How to activate an electric item if battery is full

I have a solar system 12V connected to a PWM controller 20A and a lead-acid battery 80Ah deep cycle. What kind of setup should I make to activate a pump (12V) if the battery is full ( >13.8V ) ?
0
votes
1answer
417 views

Is is safe to let my PWM charge my 12V battery at 14.8V?

I have a 12V battery linked to my solar panels. In the middle I have a PWM charge controller, that is configured by default to charge the battery if Voltage if lower than 14.8. At night, battery ...
-1
votes
2answers
368 views

Battery bank system for a load of 1600 Watts

How many batteries of 12 V x 125 Ah needed to continuously run a load of 1600 Watts using an inverter of 24 VDC x 120 VAC that uses a battery bank as primary source? For a load of 1600 W , at least ...