Choosing the right solar solution size for your home or business

28 November 2025

Choosing the right solar solution makes all the difference in the world for consumers. With the right system, not only will your energy requirements be met, but consumers will also be able to enjoy savings, net-metering and many other features inherent of solar energy solutions. However, with the wrong system, even the basic functioning i.e. energy generation, might be sketchy at best, lending a lot of credibility to the idea of there being a right system for a consumer, and for the company to be cognisant of the fact that consumers need to be informed of the right solar solution for themselves.

In this blog post, we will look at the steps that consumers themselves can follow in making the right choice for a solar energy solution size for their home or office, and understand what makes for a right solar energy solution for a consumer. And as always, we will understand how ZNC Solar can help consumers make the right choice and choose the right system, always. Let’s get into it.

Choosing the right solar solution size

Making the right choice for your solar energy solution can be crucial in making a difference between the getting the best possible solar energy experience, or getting a solar energy solution that presents more problems than solutions and keeps getting in your way of energy independence, rather than being conducive to it. Which is why, ideally, both the consumer and the company should work together in understanding the consumer’s energy needs, the type of system they might want, and finally, will the consumer require a certain level of scalability in the future or not. Which brings us to the first part; the consumer side of deciding on the right solar energy solution.

Consumer input: the right solar energy solution size

Sizing a solar energy solution simply means ensuring that your energy needs are met with a certain type of solar energy system with a specific output and efficiency level. At its most basic level, the equation is going to be something like this: if your home or office needs 7.5kW of energy, your system should be atleast sized to the same number or ideally, even more. Maybe 10, if the consumer agrees to a storage-supporting system, ensuring there is energy backup for rainy days. This is obviously not that simple in real life, since there are a lot of other factors that need to be kept in check and analysed in order to ensure the selection of the best possible system size for the consumer, and this part is where the input from the solar energy company comes in.

Solar energy company input: sizing the solar solution

At the next level comes the input from the solar energy company itself, which is more technical than what one might think. Once the company has all the required data from the consumer, they then get to work, working out the perfect size of the solar energy solution; what solar panel types and how many would be required, what type of solar inverter and system type and finally, whether the system would need to be scalable or not. They also need to take into account how the energy demands or needs of the household will grow over time; from simple scaling to major new additions to an office or household that could offset the energy demands from the premises, all of that needs to be kept in check. The solar energy company is responsible for ensuring that scalability is an option, even when the consumer may not state so, since energy demands of any household or office are always fluctuating. Depending on the company, the size of the solar energy system can be perfect, like ZNC Solar does, or could miles off.