Question about Sun (PEX75030) 15-Watt Power Supply

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Pls i need an answer

Pls i want to know the amount of solar n panels to be used for 1kw solar system

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Check the attached documents for your reference & perusal.....

Posted on Sep 18, 2014

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Here's a concrete example:

Evergreen Solar makes a 200 watt panel (model ES-A-200). In real world conditions these panels should kick out 150 watts each. So to get 1,000 watts, you would need no fewer than 7 panels to do the job. Currently, this panel goes for about $1,000 each so your lookng at $7,000 just for the panels. You will also need a charge controller, inverter, batteries (if desired), mounting hardware, etc.

Posted on Jan 25, 2009

  • Zac Jun 19, 2014

    Not sure what you intend to do with the electricity from the panels but here is how you can get 1,000 watts...



    Northern Arizona Wind and Sun sells Kyocera 250 watt panels for $257, which is about $1 per watt which is close to the current market price for the larger sized panels. Four of these panels will get you 1,000 watts of power for about $1,100 (not sure what shipping is).



    If you are looking at a stand alone power system, you will need a charge controller (preferably a MPPT controller), batteries (deep cycle, flooded lead acid batteries) and presumably an inverter to make 120Vac electricity.



    If you want to sell electrictiy to the grid, you will need a grid-tie inverter.



    Or if you want grid tie AND backup power, then you will need grid-tie inverter with charger, solar charge controller, batteries, etc.

  • Zac Jun 19, 2014

    Not sure what you intend to do with the electricity from the panels but here is how you can get 1,000 watts...



    Northern Arizona Wind and Sun sells Kyocera 250 watt panels for $257, which is about $1 per watt which is close to the current market price for the larger sized panels. Four of these panels will get you 1,000 watts of power for about $1,100 (not sure what shipping is).



    If you are looking at a stand alone power system, you will need a charge controller (preferably a MPPT controller), batteries (deep cycle, flooded lead acid batteries) and presumably an inverter to make 120Vac electricity.



    If you want to sell electrictiy to the grid, you will need a grid-tie inverter.



    Or if you want grid tie AND backup power, then you will need grid-tie inverter with charger, solar charge controller, batteries, etc.

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Solar panels come in different ranges of wattages.Add up the wattage of different solar panels you get e.g. Ten 100W solar panels will give you a 1Kw solar system.

Posted on Jul 16, 2008

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Would like to know more about the solar panels discussed and shown on 2nd October 2014 at 05:15+


Solar panels are typically rated at .3 volts per cell. These cells are connected in series until they add up to 12 volts,24 volts or 36 volts depending on the solar system. The more cells you have the higher the charge rate of the batteries connected to the system. The DC voltage from the cells are used to charge the batteries then the voltage from the batteries is used to drive a DC to AC- convertor which is the power used by your home. The more cells connected the quicker it will charge the batteries and the more batteries connected the more power the solar system can provide.

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Are solar chargers expensive?


Not at all, pls check this one: Amazon com MASKELENA Solar Charger Solar Power Bank 12000mAh External... No more than $30

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2 Answers

How many major companies have solar panels?


click in this link

http://en.wikipedia.org/wiki/List_of_photovoltaics_companies

scroll down on page to see manufacturers.
Hope this helps.

Dec 03, 2012 | Computers & Internet

1 Answer

Do solar panels get weeker over time?


You are correct they do lose the output over time. .Not knowing the specific type or brand of the panels the following is a general over all reply.

The manufacturer will give the specific amounts the panels will lose their efficiency. Newer panels I believe will 2-4% the first year then something like 1% per year. Newer panels usually have a life of 20 years. I am not sure about the smaller panels you have but I would guess they may be a little faster especially if your putting them up and down constaly.

Also make sure you clean them, that will make a very substantial difference especially since they are smaller in size and I am sure you know that shade on ANY PART of the panel may eliminate total sections of the panel producing power, depending on the type of [panels you have. Also check for scratches where you might be able to light through the panels as that may affect the output.

I would suggest a google search for manufacturer and model # and then review the spec sheets for the item. That is were you would find the information.If you don't and the company is still in business send them an email and they will let you know.

Good luck.

Oct 30, 2012 | Garden

1 Answer

Installed a new TAYSTAT250B outside ts and was needing to know where it should be set.It has a screw that you adjust.It has the 4 degree and the 2 degree mark on it. Thanks,G.White


It should be set to the Heat Pump's "Balance Point". The Balance Point is where the heat pump is generating (extracting) 1kW of heat for every 1kW of electricity. Typically, the Balance Point is in the lower 30's to the middle 20's depending on how efficient your system is. Just to mention, my SEEC 16 system is set to 25 deg.

Those markings, BTW, are 20 deg and 40 deg, not 2 and 4.

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1 Answer

Hose keeps popping off of sunheater panel


Panel is most likely creating too much back pressure for the pump. The solar panel creates a major restriction in the flow of water, which is why the hose keeps poping. You can try a couple of thing,

1. The panel should be installed after the filter. Sequence should be Pump to filter to panel to pool.
2. Install a longer hose from filter to panel, will reduce pressure. Or install a diverter valve which you can control the amount of water going to the panel, sending some straight to the pool.
3. If you roof mounted the panel and it goes from the Pump to filter to a booster pump to solar panel, you will need to install a check valve to reduce the back pressure.

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1 Answer

Solar connections for 12vdc houseboat system


Hi,

Based on your post/description, I would suggest that:
1. There is no need to install a diode from the boat motor alternator since most current design used electronic regulators with built-in diodes. The output of the alternator therefore could go straight to the battery or a switch (*selecting battery 1 or 2);
2. It would probably be safer that you would install a diode after a portable generator since some design do not need/use internal rectification but are connected straight to the windings/coil;
3. There is no need to install diode after each solar panel.

To my understanding the Plasmatronics have built-in in-line diodes to its inputs/outputs (unless otherwise required such as with the "Catch Diode protection" across the load). Additionally, unlike in some other system, a PL-20 would require that the negatives not be tied to a common ground. The PL-20 is relatively a straight forward connection (it's the programming that is a challenge).

Hope this be of help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Tight lines.

Feb 01, 2008 | Radio Communications

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