Photovoltaic system and the generator set: which one to choose

At this time, we are going through an energy crisis, which makes electrical supply unreliable and costly. In this post, we will conduct a comparative analysis between the most commonly used sources: the photovoltaic system and the generator set.

You should know that all alternative sources have their advantages and disadvantages despite being known for their efficiency and safety. The mentioned ones are the most used today, but… Which one to choose?

Next, we present a brief description of each of the mentioned ones and a comparative table. So you can make an informed choice. Let’s get started!

What is a generator set and what are its parts?

A generator set consists of a diesel engine that is coupled to a rotating generator on its shaft. Its most important parts include:

• Engine
• Rotating alternator for generating alternating current
• Control panel and automatic transfer switch; for a deeper understanding of this equipment, we recommend our article, which you can read at this link
• Various engine systems such as fuel, cooling, lubrication, etc.

Also, in the post Generator set: is it the solution as an alternative energy source? you will learn all about this equipment.

What is a photovoltaic system and what are its parts?

It is a system that converts solar energy into electrical energy, also known as photovoltaic energy in a direct current form. In general, its main components are:

• Solar panels
• Solar charge controller
• Batteries, although optional, allow for electricity storage during nighttime and cloudy days
• Inverter DC/AC

For more details on photovoltaic electricity, you can refer to our article The photovoltaic energy system for the home.

Comparative chart between the photovoltaic system and the motor generator group

Next, we present a comparison matrix between the two sources so that you can assess their pros and cons in relation to each other.

FEATURE	GENERATOR SET	SOLAR POWER SYSTEM
Initial cost	Medium	Very High
Operating Cost	Very High: requires continuous fuel and consumables	Very Low
Maintenance	Requires periodic maintenance	Requires minimal maintenance
Energy Source	Fossil fuel	Sun
Greenhouse Gas Emissions	Yes	No
Noise	Yes	No
Lifespan	Up to 20 years depending on usage	More than 25 years
Efficiency	Depends on the load and generator capacity	High efficiency
Flexibility	Generates electricity at any time	Does not generate at night and on cloudy days. Depends on solar radiation..
Environmental Impact	Yes	No

Our verdict

The decision we made is based on the following criteria:

• Initial and operating costs
• Electricity availability
• Lifespan
• Installation complexity and required construction
• Environmental impact

According to the above points, we believe that the photovoltaic system is the best decision you can make. For installing an alternative energy source to conventional electricity for your home. Here’s why:

• Although the initial cost of a photovoltaic system may seem higher, consider that it has the advantage of being modular. Thus, you can increase its capacity by adding more solar panels. This versatility is not present in the generator group

Additionally, the photovoltaic system has no operating costs, and its energy source is free and inexhaustible. In contrast, the generator group requires expensive fuel and periodic maintenance

• The generator group has an apparent advantage of being able to generate electricity at any time and regardless of the weather. However, the photovoltaic system can do the same, provided it is equipped with batteries
• The lifespan of the generator is shorter than that of the photovoltaic system because it experiences greater wear. This is due to having moving and rotating parts. Also, its lifespan depends on preventive maintenance
• Installing a solar energy system requires much less construction than installing a generator group. The latter also requires a specially conditioned area, which is not necessary for the photovoltaic system
• The solar energy system makes much more ecological sense, whereas a generator is highly polluting.

Concluding…

In the blog of the energydcac website, we have a lot of content for you on these and other topics that will interest you. Visit it, and you’ll see!

If you have any opinions or questions about this or any other article, feel free to comment. We’ll be happy to read and respond to you.