How to make your own home solar. With Pictures + solar book

[TristanWS]

sir alarcon... "100watt solar panel at direct charge sa 70ampere 3sm motolite battery,monitor ko na lang sa digital tester,40% lang nagamit ko,kaya kapag malakas ang araw mga 11am puno na ang battery,"... tanong ko lang kung ano ang voltage reading ng "11am puno na ang battery".

 

[alarcon]

sir alarcon... "100watt solar panel at direct charge sa 70ampere 3sm motolite battery,monitor ko na lang sa digital tester,40% lang nagamit ko,kaya kapag malakas ang araw mga 11am puno na ang battery,"... tanong ko lang kung ano ang voltage reading ng "11am puno na ang battery".

kapag walang nakakabit na amplifier,15volts reading ko tapos diskonik ko na sa panel,mga 10am or 11am,minsan biglang kukulimlim,
pero kapag umandar yung ampli pati usb player mga 20watt siguro to,kinahoy ko lang sa lumang cassete radio,mga 2 oclock pm bago mapuno

maam,kapag may nakakabit na load sa battery habang nagchacharge dapat pala di ko paabutin ng 15volts,overcharging pala ito,

 

[TristanWS]

sir alarcon... palagay ko ay alam na alam mo na kung paano i-charge ang battery mo maski walang SCC... kaya maski medyo malaki ang 100W na panel (safe level pa rin ang 6A) ay very safe mo pa rin natsa-charge ang 70Ah battery... ang worry ko na lang ay kung makalimutan mo i-monitor ang charging kasi fast charging nga sya kaya malaki ang possiblity na mag-over charge...

 

[bongbenitez]

Nakabili na ako ng Schottky diode 5Amps 2 pcs para sa 70W solar panel. P30.00 2 pcs na. Mura lang pala.
Solder ko as blocking diode in parallel yung diodes para daw tumaas sa 10Amps sila.

Ang sabi sa ibang forum, I need to place the blocking diode sa 70w para di masapawan ng voltage nang dalawang 150watt panels.
Kung bumaba daw ang voltage ng 70w due to shading, doon daw pupunta yung ibang naharvest ng 2pcs 150w.

Also, I will change the connection of the 3 panels (2pcs 150w and 1 pc 70w) from parallel to series.
Based sa readings and replies sa other forums, mas gusto ng 12/24V 30A MPPT controller ang high voltage.

At present connection ang hightest amps na nakukuha ko ay 10-14amps reading in a day.
Malalaman natin kung tataas ang amps with series connection.

May natutuhan ako today.... Puwede pala kahit naka series ang panels mo, so tataas ang voltage, ay 12volts pa rin ang batteries when you use MPPT SCC.

Akala ko strictly 12v panel to SCC then SCC to 12v battery. This assumption is good for PWM SCC.

Pero kung MPPT SCC puwede kahit high voltage sa panel to SCC but still maintain ang 12v batteries.

 

[TristanWS]

" Ang sabi sa ibang forum, I need to place the blocking diode sa 70w para di masapawan ng voltage nang dalawang 150watt panels.
Kung bumaba daw ang voltage ng 70w due to shading, doon daw pupunta yung ibang naharvest ng 2pcs 150w." - sir bongbenitez

... actually, ako rin ay nagre-research na kasi malapit nang madedo ang car battery ko at posibleng mag mix din ako ng panels... however, ito ang nabasa ko about mixing solar panels...

"Solar modules are connected in series to obtain higher output voltage. The maximum system voltage however must not be exceeded However if among modules connected in series a module has rated power lower than the other modules, due to lower rated current of this panel compared to the other modules belonging to this string, that module might drag the overall system output down:

Mixing solar panels with different electrical characteristics is not recommended if you use an MPPT charge controller. Different wattages make impossible for the controller to find the optimal operating voltage and current, since they are different for each panel type."

Source: http://solarpanelsvenue.com/mixing-solar-panels/

so, if it is not recommended, let us analyze what will happen if nag-series ka ng 2x150W battery panels... ang voltage ay tataas sa 24-36V... at ang MPPT SCC ay mag-gegenerate ng about 25A... which is perfect for charging a 250Ah battery bank.

... however, kung matuloy na i-mix mo ang 70W sa 2x150W panels, please update us here of the result

 

[awinahe]

kapag walang nakakabit na amplifier,15volts reading ko tapos diskonik ko na sa panel,mga 10am or 11am,minsan biglang kukulimlim,
pero kapag umandar yung ampli pati usb player mga 20watt siguro to,kinahoy ko lang sa lumang cassete radio,mga 2 oclock pm bago mapuno

maam,kapag may nakakabit na load sa battery habang nagchacharge dapat pala di ko paabutin ng 15volts,overcharging pala ito,

Right! This is the most important: while charging and using an appliance, the maximum voltage is 14.40 (maxi talaga). If you are using an appliance and charge up to 15 volts, then when you unplug your appliance, you will see the voltage climbing up... and your bat is overcharged for sure. The 15 volts (which is also a maximum) is only when you charge without any appliance running.

 

[sonnyrock10]

Salamat dto ts! Mabuhay ka!

 

[alarcon]

Right! This is the most important: while charging and using an appliance, the maximum voltage is 14.40 (maxi talaga). If you are using an appliance and charge up to 15 volts, then when you unplug your appliance, you will see the voltage climbing up... and your bat is overcharged for sure. The 15 volts (which is also a maximum) is only when you charge without any appliance running.

thanks maam awinahe at sir tristanws

 

[dengoy2023]

gudday sir.. balak ko sana mag solar eh yung set up ko

solar panel--120 watts
batery 100ah deepcycle
solar charger--20amp
inverter--1500watts

ok b yung gani2 sir.. salamat ng marami

 

[awinahe]

gudday sir.. balak ko sana mag solar eh yung set up ko

solar panel--120 watts
batery 100ah deepcycle
solar charger--20amp
inverter--1500watts

ok b yung gani2 sir.. salamat ng marami

Well, it's ok... depends on what you want to run! a 1500 watt inverter is big and will consume many amperes from your battery. If you don't intent to use a big appliance, I suggest you to get a smaller one!

 

[TristanWS]

sir dengoy2023... kung 50% ng 100Ah battery ay magamit, ang recharge time ay aabutin ng 7 hours and 20 minutes... kung cloudy, hindi mapu-full charge sa loob ng isang araw... basing on personal experience, 160W panel ay kaya mag-full charge ng 100Ah battery (50% DoD) in one day even it is cloudy.

regarding the inverter size... the same as ma'am TS suggestion.

 

[poseidon]

I to ba gamut nyong chart? (Napulot ko lang. Credit sa gumawa).

 

[awinahe]

I to ba gamut nyong chart? (Napulot ko lang. Credit sa gumawa).

Each battery manufacturer has its own chart... but it's commonly accepted that 12.70 volts is 100% and 12.20 is 50% charged. It seem that the chart you have is not accurate.
Don't forget that the voltage is always different if taken after 6 hrs rest or taken while charging without load or taken while charging with load.
See sa 1rst page there is a chart with all kind of charging.

 

[vanzink26]

okay po ba solar equipment sa CDRKING? first time po mag assemble ng solar panel. balak ko sana dito sa bahay ko.

 

[awinahe]

okay po ba solar equipment sa CDRKING? first time po mag assemble ng solar panel. balak ko sana dito sa bahay ko.

The solar panels are ok... I have not yet heard any complain! For the charge controllers, be careful, not all of them are ok... the specs are different from what they really are... for the batteries I think is better to buy Motolite solar battery as the price is almost the same but you have a longer warranty and I think better quality!
Edit: I forgot the inverters! The modified wave inverters seem to be ok... I don't know about the pure sine ones!

If you need more help, just visit us again

 

[TristanWS]

sir poseidon... ang state of charge (SoC) voltage reading ng lead acid battery ay estimate lang, kasi ang reading ay depende kung ang battery ay charging, discharging o kaya ay "at rest"... kaya ang ginagawa ko ay kino-compute ko na lang ang "actual time to discharge the 50% of the battery capacity, in (hours)".... medyo accurate ito kasi ang gagamitin ay "Peukert’s Law" formula at consider rin ang "age of the battery".... here: http://www.batterystuff.com/kb/tools/calculator-for-load-specific-run-time-b.html

halimbawa, 12Ah battery, ginamit sa 6W DC LED light bulb, ang battery run time up to 50% DoD ay 11 hours or 7PM to 6AM... o kung may timer ang SCC ay i-setup sa 11 hours auto-off... (note: kung umikli na ang battery runtime, or hindi na katulad ng dati, ang ibig sabihin ay bumaba na ang capacity ng battery kasi luma na.)

 

[Testing12345]

Hi po mag tatanong lng po ako first time ko lang po kc mag setup ng solar na may battery nakabili po ako nang mga sumusunod

solar panel 100 watts CDRking
motolite na battery 100AH solar master deepcycle
CDRking CHARGER CONTROLLER model po CHR-S032-M
at LED bulb na 3 watt

kakalagay lang po ng tubig sa battery na motolite ang tanong ko po ilang days po ba ang dapat ko intayin para ikabit ung solar panel sa battery para mag charge sya sa motolite na battery ? at panu ko po malalaman kung full na ung battery ko meron po akong lumang tester hindi po sya digital tester. maraming salamat po

 

[bongbenitez]

@Sir Testing12345

Download ka sa celphone mo nang compass para alam mo saan ang south. Doon mo face ang solar panels mo.....Vertical or horizontal, your choice.

Bili ka muna ng wire na gagamitin mo.
Huwag mag tipid sa quality ng wire.
Use tape measure para ma estimate mo panels to charge controller, battery to charge controller, 12v bulb/bulbholder to charge controller.
Ano size ng wire ? Sasagutin ka ni Sir Tristan.

Hi po mag tatanong lng po ako first time ko lang po kc mag setup ng solar na may battery nakabili po ako nang mga sumusunod

solar panel 100 watts CDRking
motolite na battery 100AH solar master deepcycle
CDRking CHARGER CONTROLLER model po CHR-S032-M
at LED bulb na 3 watt

kakalagay lang po ng tubig sa battery na motolite ang tanong ko po ilang days po ba ang dapat ko intayin para ikabit ung solar panel sa battery para mag charge sya sa motolite na battery ? at panu ko po malalaman kung full na ung battery ko meron po akong lumang tester hindi po sya digital tester. maraming salamat po

 

[Testing12345]

@ sir bongbenitez

ung wire po na gamit ko is 16 po ung size un po gamit ko from solar charger to batter at sa LED bulb

at ung nakakabit po sa solar panel na default 10 po ung size nya kaya pinag dugtong ko po ung default na 10 wire size at 16 wire size tapos kinabit ko po sa solar charger. kaso po ayaw umilaw ng LED bulb kelangan po ba nang LED na DC bulb para gumana sya. kasi po ang pag kakaalam ko kapag naka kabit po sa solar charge controller automatic na nya kino convert ung DC to AC mali po ba ? pasensya na po wala po ako masyado alam sa ganitong mga setup. first time ko lng po. maraming salamat

@Sir Testing12345

Download ka sa celphone mo nang compass para alam mo saan ang south. Doon mo face ang solar panels mo.....Vertical or horizontal, your choice.

Bili ka muna ng wire na gagamitin mo.
Huwag mag tipid sa quality ng wire.
Use tape measure para ma estimate mo panels to charge controller, battery to charge controller, 12v bulb/bulbholder to charge controller.
Ano size ng wire ? Sasagutin ka ni Sir Tristan.

 

[awinahe]

@ sir bongbenitez

ung wire po na gamit ko is 16 po ung size un po gamit ko from solar charger to batter at sa LED bulb

at ung nakakabit po sa solar panel na default 10 po ung size nya kaya pinag dugtong ko po ung default na 10 wire size at 16 wire size tapos kinabit ko po sa solar charger. kaso po ayaw umilaw ng LED bulb kelangan po ba nang LED na DC bulb para gumana sya. kasi po ang pag kakaalam ko kapag naka kabit po sa solar charge controller automatic na nya kino convert ung DC to AC mali po ba ? pasensya na po wala po ako masyado alam sa ganitong mga setup. first time ko lng po. maraming salamat

First: #16 wire maliit masyado ... If you can, use #10 for all the setup or #12
Mali: "solar charge controller automatic na nya kino convert ung DC to AC"
The charge controller helps to charge your 12 volt battery, the solar panel gives between 12 and 22 volts (depends if sunny or cloudy) so the role of the charge controller is to regulate the voltage and stop automatically the charging if the voltage is too high so the battery will not overcharge.
To convert DC (12 volts) from your battery to AC (220 volts) for your bulb, you need to use an inverter. Inverters can be modified sine wave (cheaper) or pure sine wave... but maybe we will talk about inverters in another post! You need first to understand what was wrong, why your bulb did not light on!

Your bulb did not light on because it was still in 12 volts because you did not use an inverter! I suggest you to buy your bulbs in 12 volts (LED bulbs) so you don't need to use an inverter and you can have them plug directly to the battery... One bulb can be plugged also sa charge controller.

A solar set up typically is:

Solar panel ---> charge controller--->battery--->inverter--->appliances in 220 volts
or
Solar panel ---> charge controller--->battery--->appliances in 12 volts


A battery is fully charge when the multimeter read 12.70 volts when the battery is at rest for one night or several hours. It's difficult to have an accurate voltage reading with a manual multimeter... if you can, try to buy a digital one..

Before starting your project, please come to this thread and ask all the questions you can think of, to be sure that you understand properly how it works... you will save money by avoiding some errors.

kakalagay lang po ng tubig sa battery na motolite ang tanong ko po ilang days po ba ang dapat ko intayin para ikabit ung solar panel sa battery para mag charge sya sa motolite na battery ?

No need to wait... you can charge it right away! Is it an old battery?