Topic: Q: Alternative power source?

[TobleRONe]

If ever na matutuloy ang kakapusan ng kuryente next year, ano ang posibleng alternative power source na gamitin na mura lang?

sayang kasi ang ibabayad ko sa DSL kung 4-6hrs ang outage. as for gadgets meron naman powerbank and recently nakabili ako ng rechargeable flash light na meron solar panel na pancharge at meron usb charger na rin. kaya lang ang problema nga ay  yung DSl connection ko.

yung power inverter ba na 300 watts, ano kaya paandarin na appliances noon? anong baterya din maisa-suggest nyo kung ilan amps ang okay gamitin?

[rodeo]

ang sabi sa balita summer ang brown out so ciguro solar ang pwede nila gamitin

nasa 3000 ang solar na above 100 watts sa raon ,  then mga 1200 yun solar box/controller,  then 3500 motolite battery,  2000 inverter ... mahal din pala.

meron generator na around 6 thousand yun nga lang gagastos ka gasolina

[leightot]

Andami sa raon na mga solar panels naglalakihan ewan ko lang if kaya nun kahit isang magdamagan na electric-fan anyone here who has knowledge about solar panels? thank you. Interesting topic though. Up!

[praeto_RYAN]

Add ko Lang na mas preferred ang deep cycle battery for the setup that you are thinking.  Motolite sells such deep cycle battery under the line Solar Master.  Do a google search for it.  Likewise, it is better if you plan your setup with the battery located not inside your room.  Fumes from your battery is said to be toxic.  Be sure to keep the length for the wire from your battery to inverter and inverter to your actual appliance as short as possible though.  It would also be great if you can ask an auto electrician to wire up a fuse between your battery and inverter just in case a short occurs.  As for the wires that you will use, get the wire thicker than one grade for the load / amperage / wattage you are planning for.  Thicker wire is equivalent to less heat, equals less power wasted.

[TobleRONe]

ang kailangan kong supplayan is for 1 dsl modem at at least 2 fans, para mura lang.

[praeto_RYAN]

ang kailangan kong supplayan is for 1 dsl modem at at least 2 fans, para mura lang.

Irregardless of the devices that you will need to power, still a deep cycle battery is recommended since going below the normal level of charge when your setup is in use, especially if it is done frequently, will easily strain a normal battery or the batteries usually used in vehicles.  The batteries used in vehicles normally operate with full or almost full charge and as such was designed for that purpose or scenario in mind.  Try discharging said battery, like say 100 times to almost drain level, and you will easily wear out the battery easily earlier than it's supposed 3 year expected life.  Deep cycle batteries though are on the average 2x in price as that of ordinary battery.

[TobleRONe]

regardless of the battery ang kailangan ko malaman ilang watts ng inverter ang kailangan ko to power up 1 dsl modem at 2 electric fans. madali na ang baterya, yung inverter ang importante. as sa case naman ng solar panel kailangan pa rin ng inverter.

ang 300 watts na inverter ba ay sufficient enough to run the said appliances. will a 12v 6 amps battery is also sufficient enough to do the job or higher amps pa ang kailangan?

another question, gaano katagal ang itatagal ng 12v 6/20amps na battery kung gagamitin para 2 electric fans at 1 dsl modem. as far as i can remember during the 90's 4-6 hours ang rotating brown out noon.

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as for the 6kphp generator sa raon, 1000 watts iyon sabi sa akin ng sales person ng magtanong ako dati, 1 liter of gas = 1 hour of electricity. nakikita ko dito sa amin sa palengke ganoon ang gamit. gamit nila sa 1 electric fan, 1 14" TV, plus yung lighting nila sa stall

[praeto_RYAN]

I'm not that familiar with the specifics for computing the figures that you need, however, there are a lot of sites sa net where you can get an idea on how to compute for such.  Ang ginawa namin dati is to compute using a formula sa net then had it confirmed by someone who is familiar with the equation, ECE & EE ang natapos nung nagfinalize ng design if I remember right.  As per advice niya sa load computation mo eh add 15% for wastage.  Pati rin sa figure ng inverter ay deduct at least another 10% for it's design inefficiency.  Hope you find a good tutorial sa Internet.  Ganyan kasi ginawa namin.  In your case, when you buy your hardwares, pwede mo na rin tanong dun sa salesperson dahil kahit papaano ay may idea rin yan.

[praeto_RYAN]

For your inverter, you can look at the actual device that you will be using and add up their total watts requirements.  Additionally, you can use department of energy's guide is your appliance don't indicate it's actual wattage requirement.

http://energy.gov/energysaver/articles/estimating-appliance-and-home-electronic-energy-use

Don't forget to add the 15 percent for wastage from heat, etc.

[praeto_RYAN]

Sorry mods Kung sunod-sunod post ko dito, just found a useful link.

http://www.leonics.com/support/article2_12j/articles2_12j_en.php

Can no longer recall if this is the actual website we used then for our computation, however, a lot of the infos you need is answered here. 

[bodieph]

remember the formula

watts = amps x volts

so yung 12v 6amp mo, is only 72 watts

although most equipment is not exactly drawing the exact power it is rated for. example nalang is yung PSU ng computer at say 500W, hindi naman 500W talaga ang kakainin na power niyan

also pag generator rated at say 1000W, kahit pa below 1000W ang gamit mo, the generator will still consume 1liter of gas per hour because the generator will be constantly (more or less unless luma na and hindi na tama ang binibigay na power) giving out the same load the entire time. so unless you will be running at full load most of the time, hindi efficient ang 1000W generator kung mga tipong 300W lang need mo

For short-term heavy load or long term lighter loads, inverter should be the better option.

[TobleRONe]

so kung ang battery is 12v 20amps = 240 watts

gaano katagal naman itatagal nito, let's say ang total number of watts ng appliances na patatakbuhin ko is 150 watts? a little over 1 hour lang?

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thanks for reminding Bodie, nakalimutan ko na yang computation na yan.  to think nagturo pa ako ng ganyang subject 12 years ago.

mas mataas pa pala wattage ng dsl modem ko compared sa electric fan.

yung fan ko nakalagay sa likod 65 watts.

yung dsl modem, nakalagay 240v .3amps
kung susundin yung computation:
240*.3 = 72 watts and modem