How does a hybrid solar system work?

hybrid solar system

Hybrid solar systems are hybrid electric systems that combine the photovoltaic system with another source of energy. However, the term “ hybrid solar panels ” refers to solar and battery storage connected to grid systems.

The photovoltaic hybrids have the advantage that it is not necessary to significantly oversize the solar generator during periods of low irradiation. This represents a considerable cost saving. The system always uses the energy produced by the module first.

These systems have batteries for isolated locations and an emergency generator set, starting if the energy obtained is not sufficient.

Hybrid solar systems generate energy in the same way as a standard grid-connected solar system. The most common combinations of hybrid solar power are:

  • Use of diesel generators . These are heat engines that use derivatives of fossil fuels . It is therefore a non-renewable energy source .
  • Use of wind power generators . The wind is also intermittent, but we can pretty well complete with solar energy.
  • We can combine PV with solar thermal . This type of hybrid system combines both solar energy technologies in a single solar panel .

The most efficient hybrid solar system utilizes a straightforward hybrid inverter that contains a solar inverter and an inverter/battery charger.

In the absence of sunlight , the inverter will use energy exclusively from the batteries or may be supplied by the public grid. It depends on the energy consumption.

What is a wind-solar hybrid system?

A wind-solar hybrid system is a system that consolidates the force of solar energy and wind energy.

The best way to reduce the consumption of fossil fuels is to use this type of system.

These sites are often off-grid solar systems used in remote locations, and transporting diesel over long distances is expensive. The mining industry and on the islands often use this solar hybrid system.

Wind power and solar power complement each other. Each system’s peak hours occur at different times of the day and year.

The electricity production of these hybrid solar installations is more constant and fluctuates less than the two-component subsystems. If the grid connection is accessible, it can be connected to the power grid. In this way, it is possible to sell the surplus electricity produced. The downside is that it only has the capacity to store solar energy with the help of battery systems.

Hybrid energy solutions make it possible to minimize CO 2 emissions . This happens because the generator set becomes a back-up power source, running when needed instead of the 24 hours usually used.

In this way, we reduce the energy consumption since we get energy from renewable and unlimited sources. Being connected to the electricity grid is not essential, and therefore consumption is reduced.

Solar panels with diesel generators

One common type is a hybrid solar system combining a diesel engine with a photovoltaic system. This type combines solar photovoltaic (PV) and diesel generators, or diesel generators. The production of photovoltaic energy has an almost marginal cost. Therefore, it is given priority in the network.

Many installations without an electrical connection to the network adopt this type of system. In some cases, we can use diesel generators in the event of a power failure.

It is regularly a suitable option to incorporate battery storage. The battery is useful due to the fluctuation of solar energy and the limited range of a generator. The sizing of the batteries must be thought out to serve and optimize the contribution of photovoltaic solar panels to hybrid systems.

Solar photovoltaic and hybrid thermal system

One of the problems with photovoltaic solar energy is that the solar panels get hot. This heat is wasted energy but also causes a drop in the performance of the photovoltaic cells.

A hybrid solar panel places the board in touch with a fridge. However, it is much more advantageous if the heat extracted from the refrigerator is stored in a heat accumulator .

Hybrid solar panels make it possible to generate electrical energy and thermal energy in the same solar panel. These systems can more easily store excess solar energy using thermal reservoirs. This sort of environmentally friendly energy is ideal for single-family homes.

Uses of hybrid solar systems 

Hybrid solutions are designed for sites with power grid problems, lack of power or regular grid outages. These systems can be applied in different situations, for example:

  • Use for infrastructure, such as livestock applications with continuous high energy consumption
  • Industrial applications
  • Isolated residential (shelters) or rural electrification.

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