Solar panels are one of the most interesting alternative energy sources. They are installed in households all over the world. It is not surprising that everyone has at least once thought about installing one at home.
Given the fact that many companies on the market offer such services, you need to think carefully about who to work with.
One of the best solar power installer aion.solar offers its customers not only the opportunity to get quality services and after-sales service.
The specialists of this company can help calculate the cost of the project in advance.
The first thing you need to pay attention to is the quantity of solar panels to be installed for the house. Of course, the specialists will calculate everything themselves.
But customers should also understand what the quantity of panels depends on. The basic parameters are described in this article.
A. What you need to pay attention to when calculating the number of panels
Experienced professionals know how to easily and quickly calculate the cost of any project for their clients.
But users are often afraid of cheaters and such parameters should be able to calculate on their own. To properly estimate the size of solar panels, they need to know:
- the total output they would like to get from the installation;
- the insolation value;
- the area on which you plan to place the batteries.
Each of these parameters can help reduce costs or properly allocate the investment. You can’t ignore them.
1. Total battery performance
Energy is measured in watt-hours. This is extremely important when calculating the quantity of panels you will place in your home.
This figure will make it clear how many watts of power you need to get from your solar panels.
For those who plan to connect the batteries to the utility grid and reduce their costs for electricity consumption, they have the easiest way to understand this figure.
Just look at your electricity bills. They spell out how many kilowatt-hours the customer spends each month.
So you need to calculate how many kilowatt-hours the solar panel system should generate in a month, and install batteries at this capacity.
If you plan to partially cover your needs, in which case you will need fewer batteries. But you can not completely abandon the consumption of electricity from the state.
If you do not connect to utilities, then this figure will play the most important role. In this case, it is better to trust professionals who will calculate the cost of the project and measure the total consumption for users themselves.
They study modern lists of products that load your energy system and can calculate the final quantity of batteries needed.
This term indicates the number of hours per day that solar panels can deliver rated voltage. Customers should keep in mind that not only the brightest hours are considered for this parameter.
Moreover, not all hours need to be counted equally. When the sun is low, a panel mounted to its front will not produce the same amount of energy as it does at noon.
Accordingly, daylight for this indicator may vary. It will be strong, weak, moderate, etc. In some areas, climatic conditions allow the accumulation of insolation for 10 hours on a normal February day.
In other regions, the situation is much worse. It is necessary to study the indicators of climatic conditions for the correct calculation of insolation.
To do this, it is worth evaluating the performance of batteries on average for the year. Then you will get more or less the same figure, which will help to calculate the final cost of the project and the quantity of panels.
It is important to remember that such calculations should be made to order. For example, some customers are more interested in installing batteries to get electricity at seasonal times.
Then you can install cheaper batteries, so as not to spend a lot of money. To study this question themselves, users can simply find special tables of insolation on the Internet.
3. Placement area
For this parameter, everything is as simple as possible. Each user tells the company in advance what area the batteries will be placed in.
Based on this information, a calculation will be made of the amount that will fit in the specified area.
This parameter will most quickly help to calculate the number of panels. But the quality of the customer will need to be discussed. For example, it will be possible to place a smaller quantity of panels, but with better characteristics.
All customers will need to be prepared financially to install solar panels. Even to get 8 kW per day will need to spend about 13 thousand dollars.
The average cost to install such panels is $10,000 to $20,000.
For a classic house, the quantity of solar panels can reach 20-25 pieces. But every calculation of consumption and the quantity of panels will not be the same for all customers.
For a detailed individual quote, contact our managers. They will be happy to help you select the right panels and calculate the cost of the entire project.
B. Other parameters
The above indicators are basic when calculating the total quantity of panels for the house. But if the customer wants to take into account all points, it is also necessary not to forget about:
- the output efficiency of the panels (they do not always work equally and, for example, a heavy fall rain or winter snowfall will reduce their efficiency and it is better to order panels with 25% more power than you need);
- the number of hours of sunlight (the panels will not produce electricity well in areas where the sunlight is not very strong);
- the price of installation (it is better to think through the budget at once).
Such indicators will help to make the right decision, but most are better to count on the purchase of about 30 panels for installation.