Jinko Solar Panel 550W Mono Crystalline A grade with 25 to 30 years warranty is one of the top selling Brands one would find value for money. Before forging ahead, let me first of all explain what the terms KVA,kW, kWh and kilowatt/hour stand for new buyers planning to go solar.
One of the very common sourced elements of confusion I encounter when conversing with non-electrical people about solar-powered energy relates to the terms kW and kWh. What do they mean? And what’s the difference between both? Read below to get out. We are a specialized supplier of Jinko Solar Panel 550W products in Nigeria. As a rule, we use what we sell in powering our solar pumps and it works like a charm.
Folks who’re confused also throw the definition of “kilowatt/hour” into the mix. I’ll deal with this doozy in this footnote 1.
Beginning with the absolute basics before buying our Jinko Solar Panel 550W Mono Crystalline.
Please excuse this post if you were to think I’m explaining the bleeding obvious! But I believe that it is vital to create an article that describes these key units of electricity in ways that need zero prior familiarity with anything electricity-related.
So here’s my humble try to answer the question:
What’s the difference between a kW and kWh?
Let’s start using what each letter stands for.
k represents kilo. Meaning “one thousand”
W represents Watt, which is a way of measuring power.
h represents the hour, which will be a way of measuring time.
So kW means kilowatt, which will be 1000 Watts. It is just a way of measuring power. Observe that, if you want to help keep anal electrical engineers like me happy, how to create it is definitely with a tiny k and a capital W. Peak power defines a solar system’s size. e.g. a 3 kW Jinko Solar Panel 550W*6 Mono Crystalline system can produce 3.3 kW of power at solar noon (when sunlight is at its strongest) on a great solar day:
kWh represents kilowatt-hour. A kWh is just a way of measuring energy (not power). If your solar panels (for example) continuously output 1 kW of power for a complete 60 minutes, you can have produced 1 kWh of energy. The total amount of electricity you utilize (or generate) is defined as kWhs. e.g. “My solar system produced 4 kWh of electricity today!”
So at the greatest level: kW measures power, and kWh measures energy.
Exactly why is the difference between Energy and Power important?
It’s very common for visitors to mistakenly interchange the terms energy and power as if they have no difference. A lot of people take action constantly without notice. It drives electrical geeks like me up the wall, especially when I read it in national newspapers and books!
For: When someone is speaking about their electricity usage and says:
“I used 8 kW yesterday”
They probably really imply that they used 8 units of electrical energy yesterday, By which case they ought to have said
“I used 8 kWh yesterday.
Yes, yes I am aware that what you are usually planning: Who cares?
Well, it is quite important if you are buying a solar system.
Buying Jinko Solar Panel 550W Mono Crystalline
How much solar panels cosst in Nigeria?
If your buyer has studied their energy consumption and carelessly says they require a Jinko Solar Panel 550W Mono Crystalline energy system to create 12 kW, they could be quoted a 12 kW solar energy system, that may cost about ₦8,150,000 ($10,000) at today’s prices and produce about 48 kWh per day.
If what they meant was that they need someone to cover a power usage of 12 kWh each day, they require a 3 kW solar system that costs about ₦2,845,500 ($3,500) at the time of writing!
So please don’t confuse kW and kWh. Should you, you could get a qoute thinking it is cheap solar panels in Nigeria that’s completely the incorrect size!
How can kW and kWh relate genuinely to batteries?
When buying batteries, you’ll need to take into account both the ability of the battery and the power storage capacity of the battery you’re looking at.
The battery’s energy storage capacity is measured in kWh—for instance, the ‘Powerwall 2’stores 13.5 kWh of energy.
Its power is 5 kW, therefore it may charge or discharge at that rate. At full power, then, it may fully discharge in less than 3 hours.
The more energy (kWh) a battery has, the more you can store and the longer it can last, the more power it has got the faster you will get that energy in or from the battery,
Put simply, the more power it’s, the more appliances you can power with it, and the more energy it’s, the longer you can power those appliances.
For normal household use, you need enough energy to have you in the evening and at least 5 kW of power for speedy charging.
Top tip for filtering out the worst solar and battery salesmen: Question them to describe the difference between a kW and kWh. When they fully grasp this wrong how in the world are they gonna understand your needs? Lots of cold-calling door knockers will fail this test in my own experience.
The technical bit for those who are interested:
Energy: Energy is measured in Joules. Energy is the ability of something to complete work.
Power: Power could be the rate at which energy is used. Power is measured in Watts.
1 Watt is an interest rate of energy usage of 1 Joule every second, or 1 Joule per second (J/s).
What does KVA mean?
You will find technical terms aplenty in regards to generators, and they could be confusing if you’re not really acquainted with them. A term you’ll see regularly in power generator specifications is kVA. This really is essentially a sign of the energy output. We explain in greater detail below, with suggestions about what kVA rating you may need.
If you plan using our Jinko Solar Panel 550W Mono Crystalline for your Solar Generator, then you need to know the meaning of KVA.
What does KVA mean on a generator?
Essentially, the bigger the kVA rating, the more power the generator produces.
A kVA is 1,000 volt-amps. It’s everything you get once you multiply the voltage (the force that moves electrons around a circuit) by the amps (electrical current).
Kilovolt-amps measure what’s called the ‘apparent power’of a generator. This really is distinctive from kilowatts (kW), which assess the ‘true power’. The difference between the 2 is the energy factor (PF), which can be given as a rate or percentage.
You are able to calculate kVA into kW by multiplying it with the energy factor. The PF is generally 1 for single-phase generators, this means kVA is exactly like kW. For three-phase generators, the PF is generally 0.8.
Meaning a 20 kVA three-phase generator includes a true power of 16 kW (20 x 0.8 = 16).
What size of Solar generator do I want?
The kVA rating is essential as you’ll need to be sure you purchase a solar generator with enough power to operate the gear you would like to use with it. An overload could damage the gear that’s attached to it, in addition to the generator itself.
You are able to work-out the expected load by the addition of all the amount of watts needed seriously to power each of one’s appliances or items of equipment and comparing this with the expected output of the solar generator in watts.
A kilowatt/hour is just a nonsensical unit generally in most contexts. If you discover yourself applying this unit, double-check what you mean, which will be probably a kilowatt-hour. Kilowatt/hour means kilowatts per hour. Kilowatt is just a way of measuring power (units: Joules per second ), which means you assert joules per second squared or joules per second squared. Which would have been a way of measuring how fast power is increasing. An acceleration of power if you like. You will find hardly any circumstances where that’s a relevant measure. Particularly when speaking about solar or batteries. A lot of people get kilowatts/hour confused with kWh. Please don’t allow it to be you. 99% of the times, you’ll mean kWh. ↩