Thank you for the compliment, just ensuring that every Nigerian get to enjoy the dividend of good power supply
FireTheSun: That is how it should be, "Welldone" @Olopan. I have been paying attention to him for some time now and he comes across as a very focused and meticulous person.
I have a renewable energy setup comprising 1) 1.5KVA Inverter 2) 2KW solar panels 3) 12 number 2V batteries 4) PWM charge controller.
The system has been working fine with no issues but I am a bit worried as there is absolutely no protection like circuit breakers or lightening arestors on the system.
Please what kind of protection should I install to protect my setup.
For me IMO, Solar is a way to save cost on other power sources while ensuring uninterrupted power supply is achieved. And while going completely offgrid is great, it is expensive as you've said, having the grid as major backup & generator as last resort goes a long way especially for those with prepaid meters
sethtsadopp: So I was just thinking randomly about what exactly is the ultimate aim of what we are all trying to achieve with Solar? Is it uninterrupted power supply? Is it cheaper electricity? Is it about the environment? Or other things? And which among these is the most important for most of us here?
Because for example, if it's about saving money, from some rough calculations I have done, it appears off-grid solar is simply the most expensive way to make electricity, No? So does off grid even make any sense? Or is it best to combine grid and solar to create that uninterrupted supply (and cheaper bacause of grid?).
I may not be not an HVAC expert but field test shows a bit from what you pointing to here
In summary a normal AC would deliver close to perfect programmed temperature while an inverter will work to comfort close to the set temperature.
BOTH cool so that's the win there.
Replies are bolded.
Feshizzy: Thanks for this info, I might not be able to speak on the rest, But AC, that calculation for inverter is misleading,
Let me elaborate abit, An inverter and regular AC uses exactly same wattage no different 1 HP is 1 HP in terms of power. - NO! Only if the setting to work like a normal AC is choose by default it works at a lower power
So in the real sense in terms of power, you are not really saving anything with inverter AC Just saving the your inverter from surge startup. - Bear in mind that an Invert AC was made for power efficiency & not for inverter, with an inverter it makes more sense since the surge is out & energy is been saved due to it variable compressor architecture.
That's because, if it takes 5 hours to cool a room with 2 HP AC, your inverter can cool it in like 4- 4.5 hours but consumption is still the same. - I think you just answered the question with this paragraph
If your normal 2HP AC consume 2200W for 5 hrs neglecting compressor on & off time - then 11KWh have been used.
If an inverter AC 2HP runs for 5 hours also lets say it consume 1400W then 7KWh has been used.
And when you engage energy saving. Lol, it's like slowing your can from 100mph to 50mph, You will get to your destination but at a longer time doesn't mean you have save fuel. Same goes with inverter AC when you engage energy saving on a 2HP Ac you just turn it to 1.5HP or 1HP. Meaning if 2HP cool in 5 hours, 1HP would be 10+ hours.
With all the loads listed it will do roughly 2 hours just on battery, but with efficient load management, it will go for 24 hours non stop depending on your areas power supply. so it all rest on how well you plan to utilize the setup
Not sure how many years with solar but my experience in furniture says like 5 years and above but with constant sun bathing two years routine maintenance should keep it going
durodee: Lacquer polish can be obtained from a paint shop ,right? For how many years will that give the panels?
There is a possibility of the weather not been favourable and you by running the fridge all the way to night time, you depleted the battery to voltage noticed.
ebuks4ever: Pls I need some help. I just bought these 2pcs of 12V 200Ah Quanta batteries. I have 6pcs of 250W installed PV.
I forgot to turn off the fridge after sunset only to notice that by 7pm, my battery was indicating 50% on the inverter. Battery volt was 23.6V. As at 5pm, I was still getting 110Watts from the sun.
My overall load was around 250watts.
Is this normal for a battery that is just 2wks old?
Get a lacquer polish ... Unmixed and use as laminating film on the glass it should prevent want from entering
durodee: Good evening house. Is there a way to repair broken panels? There is a project ongoing somewhere and I noticed as the panels were being offloaded that some panels had broken glasses. Is there any way the could still be useful? They are 450w panels and quite a number of them. I am wondering if one can cover with new glass and seal the edges to prevent egress of water if that will work? Just thinking ........
I noticed many at times, some members are in need of small solar system that they can trust with regards to being designed up to standard, I took on a side project that will solve such power needs of those with power requirements that is efficient & small. I call it the "Solar starter pack"
Please note that my original post above is very radioactive "Do not Quote" - You'd get banned by spam bot but you can appeal your ban by mailing superadmin on bottom homepage and be out of jail in hours .... You can use this instead or edit the links out to quote
The calculator link will permanently be left on my signature.
I am happy to announce that the energy calculator I have been working on is finally ready and online!
It took me a while to figure out the many steps & formula to get it up to speed & a big thank you to sintolord, Xanderone, mctfopt, bigrovar for their help both offline & online. Though app is still been tweaked especially to be more handy for mobile users but presently tablets & PC are mostly compatible.
Purpose for the calculator was to make something local brewed that many of us are familiar with & use, those targeted are R.E Enthusiasts, Home users & professional users needing something on the fly to get their work done.
Video on how to get the hang of the web app is on YouTube https://youtu.be/_0DqPHNOcEM Don't forget to make use of the chapter maker to skip to where you need in video
Xanderone: ° 312L Thermocool Inverter freezer - 90w to 250w depending on the extent it has frozen. ° 219L Thermocool regular condenser freezer - 120w ° 219L Hisense Freezer - 100w ° 55" LG LED TV - 150 watts peak, 40 watts full power saving mode activated. ° 43" Panasonic OLED TV - 110w peak, 30 watts full power saving mode activated. ° CCTV PTZ security camera (the camera alone excluding the recorder hub) - 11 watts each.
No offense but your stance isn't looking like you serious about your project yet.
Why your energy estimation are rather vague than been precise ... If you plan being offgrid then you need a lot of preparation, real life simulation to project how & what to expect.
E.g. if I were to run that AC for 6pm-6am ... I will only run it @ 4 hours 17°C while I let 25-27°C be my sleeping temp, what this could mean is that the start & off of compressor ... Could reduce 4 hours & I have 8 hours running etc. - theoretically et.cetera
gracewealth007: Please I want to ask, if I want to go off grid and in addition to other normal house hold lightings and TV, I want to use 3 AC (one 2HP and two 1.5 HP) will a 60Kw battery and 12kw solar panel be sufficient? The ac will mostly be used during the day when weather is hot and the two 1.5 hp throughout the night. And all other basic household things like water heater, fridge, freezer, microwave also in the house.
Do you have data sheet information of solar panel, if YES, paste or post pictures here.
fhranchez: Fellow solar enthusiasts, i recently bought a 200w Canadian solar panel from a vendor here coupled with a 30amps CC. The highest amps i have seen is 5.2amps and 4.5amps on a average Sunny day. I don't believe this is normal because the panel maximum amps is rated at 11.6amps.
Now my installer did not remove the mc4 connectors instead he only connected the wires at the edge of the mc4 connectors. I think this is the reason for the poor performance of the panels or is 4.5amps the best i should expect from my 200w panel?
putting together a solar calculator that can get your audit done in minutes, basically targeted at home users who are enthusiast or pro user
but i need to populate these list i have get going to get things up to speed. ...... everyone is free to add or correct existing data.
Appliances Wattage
LED Bulbs 3W - 3 LED Bulbs 5W -5 LED Bulbs 9W -9 LED Bulbs 18W -18 LED Pop Light 6W -6 LED Pop Light 18W -18 LED Pop Light 26W -26 Ox Fan 16" -120 Ox Fan 18" -140 Ox Fan 20" -180 Ceiling Fan - 80 Standing Fan -70 DC Fan -30 Rechargeable DC Fan -45 LED TV 32" -55 LED TV 42" -70 LED TV 50" -85 LED TV 70" -130 Laptop -70 CFL Bulbs 9W -9 CFL Bulbs 18W -18 CFL Bulbs 26W -26 Decoder -18 freezer -180 Fridge -120 Phone charging -12 Regular 1 HP AC -870 Regular 1.5 HP AC -1380 Regular 2 HP AC -2100 Inverter 1HP AC -480 Inverter 1.5HP AC -700 1 HP PUMP MACHINE -900 1.5HP PUMP MACH. -1400 LED Bulbs 10W - 10 Standing Chiller -200 Microwave -1200 Signage light - 90 Signage light Large -180
1. I'd change the wire from the batteries to 16mm ASAP 2. I'd get a 10A 230Vac breaker and put that before connecting the AC supply to the inverter 3. I believe the 16A DC breaker is between the panels and the inverter while the 63A is between the batteries and the inverter? - YES
happy saying that solar doesn't work with their full chest.
I have seen a fair share of installations that were poorly designed and installed, to know that going cheap isn't really an option when it comes to solar
mctfopt: The guys with the lower quote will most likely win. Even if the job end up being mediocre, the clients are often happy with it.