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Question How much power from a solar panel in Dumaguete

Discussion in 'Dumaguete City' started by Dave_Hounddriver, Feb 15, 2016.

  1. DavyL200

    DavyL200 DI Forum Luminary ★ Global Mod ★ ★ Moderator ★ Highly Rated Poster Showcase Reviewer

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    Dave_Hounddriver

    Dave_Hounddriver DI Forum Patron Highly Rated Poster

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    Did that site work for you? Or did you just Google it? I ask because I tried to plug in some numbers but as soon as I clicked on it, it took me to a site selling Air Jordans shoes. But the numbers look good if I don't use the calculator.

    EDIT: Thanks for the post below Davy, I did not want to harp on the point but I did try the site again and I still cannot input any numbers into the Grid Tie In Estimator. Its a shame and I cannot figure out why you can input numbers and I cannot. Oh well
     
    Last edited: Feb 15, 2016
  3. DavyL200

    DavyL200 DI Forum Luminary ★ Global Mod ★ ★ Moderator ★ Highly Rated Poster Showcase Reviewer

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    Worked fine here,been using it for over a year now,but still waiting on the price of stuff to come down further before buying anything.
    The colours on the map seem to have changed recently though as I see we are 5-5.5 hrs of sun,last year we were getting 6-6.5 hrs of sun so not sure why this is! And remember the air quality is much cleaner this far south so the panels should generate 10-15% more
     
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  4. Optimus_Energy

    Optimus_Energy Guest Guest User

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    Work on an average of 4kWh daily for every 1kWp installed. So .5kWp will make 2kWh per day
     
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  5. Nutz2U2

    Nutz2U2 DI Member Showcase Reviewer

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    Hi Dave,

    Update everything in Firefox (correct??) ---- specialy Java
     
  6. ChMacQueen

    ChMacQueen DI Forum Patron Highly Rated Poster Showcase Reviewer Veteran Army

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    I checked the site and the it doesn't work to use the calculator but you can look at the manual part down below and figure it out.

    I'd figure 4-5 500KwH panels for an average bill of 500KwH used. A bit over but if using a battery system or collecting from Noreco II (assuming they do that) should help offset those cloudy/rainy times and that night-time aircon if use.

    I really like the idea of setting up a solar power system but its so bloody expensive to get in and I don't own my own place. The bigger risk I see is the chance of nearby debris from branches falling and so forth in the heavy storm season.

    Wish the prices would seriously come down thou. I'd be tempted to try and look into a semi portable system (as in if I move houses I can take it with me easy!).
     
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    Dave_Hounddriver

    Dave_Hounddriver DI Forum Patron Highly Rated Poster

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    I'm thinking I want enough panels to offset the cost of running my air conditioners all day during the heat of the day. If its cloudy/rainy I don't have to produce as much because the air conditioners are not working as hard. I would not want to overproduce and need batteries as they are the most expesive part of the solar electric system. I would not want to overproduce and sell back to Noreco because they only buy your excess for 1/2 price (give or take) so it would take twice as long to make the system pay for itself and my goal is to get the cheapest setup and pay it off in the fastest time due to reduced Noreco bill.

    Such are my thoughts, and its just fantasy for the moment. Thanks for your input.
     
  8. robert k

    robert k DI Forum Patron Highly Rated Poster Veteran Army

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    Follow my logic here. The price of solar isn't going to come down a whole lot more because the price of electric from the grid is not going to come down. Those selling you what you need for solar want to make an excellent profit also and would exchange places with Noreco if they possibly could. Or do you think they are in solar out of the goodness of their heart?:rolleyes:

    That said. I wonder if the figures reflect (pun intended) the use of reflectors to increase the amount of light each panel receives? I presume that a sheet of glass with aluminum foil backing for a reflector would be considerably cheaper than a solar panel itself and help with the problem of getting an optimal amount of light to the panel for the greatest period.
     
  9. denpet

    denpet DI Senior Member Highly Rated Poster Blood Donor Veteran Air Force

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    Short answer; No one can tell as there are more factors. E.g. how is you consumption pattern? E.g. are you using a lot of electricity during daytime or night time?
    First. Don't confuse kW with kWh. kW is the amount of power something can put out. kWh is for how long it can put out that amount of power. If a panel produce 100W for 1 hour it has produced 0.1kWh.
    A 500W panel can not put out 500W of electricity. There is a loss in converting it from DC to AC.
    What kind of inverters do you intend to use?
    We installed 120 x 250w panels with 300w micro inverters and grid tied the system. We cut our bill in half, and we used to consume 5000-10000kWh
    Our total output of 119 panels is 2500-3000kWh per month, depending on weather. How much you save depends on you consumption pattern. A kWh saved during the day will nock 10p of your bill while one overproduced and sold back to the grid will only give you 5p per kWh.
    I.e. NORECO will only pay you 5p per kWh you deliver to them. But, as you pay them 10p per kWh they deliver to you the saving for not having to pay that is 10p.
    So, in short, to produce 2000kWh per month you need about 80 panels, if you use the same technology, i.e. micro inverters, which is the most effective for grid tied systems.
     
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  10. Rye83

    Rye83 with pastrami Admin Secured Account Highly Rated Poster SC Connoisseur Veteran Army

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    I've requested a brochure/info packet/contact information from Bryan. He is a sole distributor in the Philippines of a certain brand of solar panel that, I believe, has a lifetime warranty (something the other solar guys in Duma don't offer). He also handles installations. Bryan will not BS and is very honest about what can be expected from these panels. Once I have the information I'll post here and/or create a showcase page with the information.
     
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