Although in principle it seems that in an installation of photovoltaic solar energy just need solar modules and batteries, there is a key element in these facilities is what ensures that, in the charging process as in the discharge accumulators, is made so that they are always within the correct operating conditions: the charge controller.
Solar panels are designed so that they can give a higher than the end voltage battery charging voltage. This ensures that the solar panels are always able to charge the battery, even when the temperature of…
In the autonomous electricity supply facilities, it is necessary to store the energy captured during the hours of solar radiation in order to cover supply during the hours when there is no (daily cycle and seasonal cycle).
- Electric batteries have a very important and fundamental to the proper functioning and duration of a solar photovoltaic installation function.
- They must have sufficient capacity to ensure supply of electricity during periods of clouds (autonomy of installation).
- It is reversible electrochemical systems…
The batteries in a photovoltaic solar energy system is to accumulate the energy produced by the photovoltaic panels during the hours of Sun to be able to use it at night or on cloudy days.
The use of batteries also allows to provide a higher current intensity than a functioning photovoltaic panel can offer. This would be the case if several electrical appliances were used at the same time.
A battery consists of small 2V accumulators integrated in the same element; Has direct current at 6, 12, 24 or 48V. The accumulator is the cell that stores energy through an electrochemical…
In electricity, the rated voltage of an electrical device is the voltage that must not be exceeded in normal operation. The nominal adjective is because that tension usually serves to characterize the device, to name it. The nominal value indicates the theoretical or ideal value of anything that can be quantified, as opposed to the real value, which is what is obtained in a given measurement.
Another definition of rated voltage: The rated voltage is the specific potential difference for which a device or installation is designed.
As it is a nominal value it implies that the voltage…
The volt is the international system unit measures for measuring electromotive force and voltage.
The volt is represented by the symbol V. The measuring instrument for measuring voltage is the voltmeter.
Two different definitions of volt can be given:
On the one hand, we can consider that a volt is the voltage between two points of a conductor through which passes a current of one ampere (A) and a power of one watt (W) is dissipated.
Another alternative way to define it: The volt is equivalent to the potential difference that exists between two points of a conductor…
An ampere-hour is an electric charge unit. It is represented by Ah. The ampere-hour is not part of the International System, since the hour is not either.
The ampere-hour indicates the amount of electrical charge that passes through the terminals of a battery (or an electrical conductor) providing an electric current of 1 ampere (A) for one hour (h).
The ampere-hour is used to measure the capacity of a battery, ie the amount of electricity it can store during charging and return during discharge.
A battery that has, for example, a capacity of 100 Ah, theoretically can give…
Hybrid solar energy systems are hybrid energy systems that combine the solar energy of a photovoltaic system with another source of energy that generates energy. A common type is a hybrid photovoltaic diesel system, which combines solar photovoltaic (PV) and diesel generators, or diesel generator sets, since PV has only a marginal cost and is treated with priority in the network. Diesel generator sets are used to constantly fill the gap between the current load and the actual power generated by the photovoltaic system.
Since the solar energy fluctuates and the generation capacity of…
We refer to the photovoltaic effect in everything related to obtaining energy through the action of light.
The most used light source for photovoltaic installations is that coming from the Sun, that is, solar energy. Although there are small devices, such as calculators, that can work with artificial light. Photovoltaic solar energy
Solar photovoltaic energy is a methodology for obtaining electrical energy thanks to photoelectric cells. It is a renewable energy since its energy source, the Sun, is considered inexhaustible.
Photoelectric cells are the main component…
The charge controller is a separate element of the autonomous photovoltaic systems. It is also known as charge controller.
Being an installation in which the energy generated by the photovoltaic modules is not supplied directly to the mains will be needed batteries.
To charge batteries safely charge controllers play a key role in both the loading and discharge the battery.
The charge controller is limiting the energy that is supplied to the battery and when the battery is charged, if he continues to supply energy, become hot and could create a dangerous situation.
These installations are mainly used in locations where there is no access to the electricity grid and it is more economical to install a photovoltaic system than to lay a line between the grid and the point of consumption. The electricity generated is intended for self consumption.
The main applications of isolated systems are:
- Electrification of houses and buildings, mainly for lighting and low-power appliances
- Street lighting
- Agricultural and livestock applications
- Water Pumping and Treatment
- Telephony antennas isolated from the network…