How To Choose The Best Solar Panel And Battery in 2022

 How To Choose The Best Solar Panel And Battery in 2022

There are probably hundreds of brands of solar panels. You're not a solar panel expert then how do you know what brands are good?

Let's look at the four most important factors in choosing a solar panel

 1. Warranty

·        2. Technology

·         3. Efficiency

·        4. Temperature coefficient

 

Warranty

When you're looking at solar panels the warranty is really important but what you might not know is that solar panels come with two sets of warranties the performance warranty which is always at least 25 years.

Warranty is more or less worthless and the product warranty sometimes known as the manufacturer's warranty. Which is the real warranty performance warranties are simply guarantees that your solar panel performance will not degrade more than a certain amount per year all solar panels degrade in performance over time around half a percent per year for budget brands maybe 0.3 of a percent a year for higher-end brands.

The performance warranties are worthless because it's really easy for manufacturers to try and wriggle out of them and claim any issues with your panels fall under the usually shorter product warranty and even if you can prove that it's a performance warranty claim the compensation you're entitled to be usually peanuts.

That’s why you should be looking at what product warranty is offered with a solar panel as it's the one you will rely on if things go pear-shaped. These days most budget panel brands offer a 12-year product warranty

and high-end brands offer a 25-year product warranty as high-end brands carry a premium price point over budget brands it's really up to you and your situation to decide. If it's worth paying extra for a premium product with a longer product warranty think about whether the home. You're putting solar on is your forever home or something you're likely to move out of in 10 years or less. A solar panel will have dozens of

specifications on its datasheet and people can really get their knickers in a twist comparing them.

But you don't really need to worry about any of them just pick a brand.

 

Technology

Solar panel technologies can be divided into two categories

·         Monocrystalline

·         Polycrystalline

There is no difference in performance between the two are so marginal it's not worth worrying about. So don't listen to the salesman eagerly telling you how much better is monocrystalline panels are than someone else's polycrystalline

 

Efficiency

Solar panel efficiency is an interesting one because intuitively you'd think a more efficient panel would give you more energy but that's not the case, for example, A 370-watt low-efficiency panel will produce the same amount of energy as a 370-watt high-efficiency panel. The difference is the high-efficiency panel is slightly

Smaller so you can fit more of them on your roof. If you've got a big enough roof lower efficiency solar panels are fine and will save you a good chunk of change. But if your roof space is limited and you need to squeeze as much power as you can out of it. Then you may find the extra cost of top-tier high-efficiency panels worthwhile.

 

Temperature coefficient

The temperature coefficient is also known as p max. This is the main factor to consider when buying solar panels.

Did you know solar panels love light but they hate to heat the hotter? It gets the worse your solar panels will perform a solar panel is sized in what based on the perfect solar panel temperature of 25 degrees but the solar panel will almost always be hotter than the air temperature.

 

Choose Battery for Solar Panel

 

So you are looking for batteries for your off-grid energy set up and you're wondering which batteries perform the best which ones last the longest how I get the best view out there in the market and which kind of battery should really look out for or not buy.

Well in this Blog I will give you a few basic principles that you can use to compare any kind of battery that you're looking at on a side-by-side basis. I am dividing it into only two sections the first section. We shall look at the actual capacity of the battery.

So what kind of Consequence does it have when you're looking at two-volt six-volt 12-volt batteries?

What does it actually mean the M power rating, kilowatt-hour rating?

What about the discharge rating the C rate?

In the second section, we'll look at what kind of life of batteries?

And look at the depth of discharge figures and how you can use this to your advantage and of course the cycles what does it mean what kind of cycles are you looking for and how does it affect the lifetime of your battery.

 

The capacity of the batteries

 I want to mention something about the voltages so the typical voltages that you can find out there is 2 volt 6 volts and 12 volts. The main reason why at different voltages is. Because they're all built of individual battery cells one battery cell existing of let play submerge into electrolyte creates 2 volts you combine three cells in series. You make six volts you can bind six cells in series. You make it a 12-volt battery. So that's the basic difference between these batteries.

 

M power rating of a battery

I want to mention is the M power rating of a battery. The M power rating indicates the number of amps the amount of electricity that can withdraw from a battery during the amount of time. For example, if a battery has a hundred amp hour rate you can withdraw a hundred amps during one hour and it will be empty or you can withdraw ten amps during ten hours and then it will be empty so that is the empower rating and it's a very important number for a battery.

 

C rate or the discharge rate

C rate closely related to the M power rating is the C rate or the discharge rate. So what is important for you to understand is that if you would empty a battery in a small amount of time the total amount of energy that would you be able to get out of the battery is less and if you take the same battery but empty it over a longer amount of time so the same battery empties it quickly low energy empty it slowly more energy. The C rate indicates the amount of Empowered amount of energy that you can withdraw out of the battery.

If you completely emptied a battery in a certain amount of time so a C rate of C- indicates the amount of empowers. If you empty the battery in two hours seat them the amount of energy you can withdraw in ten hours.