Wind generators based on horizontal axis turbines are not the only possible solution for the high-quality conversion of wind energy into electricity. There are other designs that sometimes show greater efficiency than axial turbines. An example of such an alternative design is a Daria vertical rotor wind generator.

This unusual solution was proposed back in 1931 by the French aircraft designer Georges Darier, who set himself the task of creating such a wind generator that would work in any direction of the wind, without requiring strict orientation. It was proposed to position the rotor of the generator together with narrow blades vertically, so that in both light and strong winds, a significant part of the air flow would not encounter significant aerodynamic drag, but would directly press on the working surfaces of the blades, leading to their rotation ...

When acquiring a diesel generator for one purpose or another, it is important to understand the principle of its operation, because if you don’t understand what you are dealing with, you can accidentally lose sight of the symptoms of malfunctions, and simply violate the operating rules of this unit.

The most common diesel generator (which is suitable for a home or a small enterprise as a source of backup power supply) consists of several main units installed inside the frame, often protected by a noise-absorbing casing: a fuel tank, a diesel engine, a manual starter, an electronic automatic control and voltage stabilization unit , alternator (directly alternator), battery with charger. In addition, engine lubrication and cooling systems, as well as an exhaust system, are implemented within the diesel generator frame. The principle of electricity production in this type of generator is based ...

Solar panels, also called solar panels or solar modules, are built from separate photovoltaic converters (the so-called solar cells), which are connected to each other in series and parallel circuits, collectively working as a single current source.

Actually one panel can be considered as a current source. Several solar panels form an autonomous solar power station, which can be small (if we are talking about a private house, for example) or large (if we are talking about an industrial solar power station) power. The size of a solar station depends on its purpose and on the needs of its consumer. One solar panel usually contains the number of elements in multiples of 12, namely: 12, 24, 36, 48, 60 or 72 solar cells. The rated power of one such panel usually lies in the range from 30 to 350 watts ...

MPPT is one of the ways to use the resources of an energy source, whether it be a solar battery or a wind generator, but in this article we will talk specifically about solar energy. Its main feature is to increase the efficiency of an alternative source by “pulling” the maximum amount of energy by choosing a specific voltage and current.

The choice of these parameters is reduced to the analysis of the current-voltage characteristics of the source and determining at what voltage and current consumption the maximum power will be consumed. That is how the abbreviation MPPT stands for - Maximum Power Point Tracking (tracking the point of maximum power). General information on the principle of operation of MPPT controllers At a glance, one might think: “Well, use the maximum voltage possible, so there will be a maximum load current ...

In those areas where it is problematic or impractical to connect to a centralized power grid, especially in solar regions, people often resort to using solar panels in their private farms. Solar panels convert the energy of solar radiation into electricity, and thus allow the consumer to receive electricity for their own needs, regardless of the state power grid.

But due to the fact that the generation of electricity on solar panels is uneven (at different times of the day, and also depending on cloud cover and current climatic conditions), the person has to accumulate the received energy all the time in high-capacity batteries. Such batteries are expensive, and their life is limited. Lead batteries will work in such a system for about 5 years, and lithium batteries for about 10 years, but they also cost 5 times more expensive than lead ones ...

Wind is free energy! So let's use it for personal purposes. If the creation of a wind farm on an industrial scale is very expensive, because in addition to the generator, a number of studies and calculations are necessary, the state does not incur such costs, and for investors in the countries of the former USSR this, for some reason, does not cause much interest. In private, you can make a mini-wind turbine for your own needs. It is worthwhile to understand that the project of converting your home to alternative energy is a very expensive undertaking.

As already said: you need to make lengthy observations and calculations in order to find the optimal ratio of the sizes of the wind wheel and generator that is suitable for your climate, wind rose and average annual wind speed. The efficiency of a wind power installation within one region can vary significantly, this is due to the fact that the movement of the wind depends not only ...

Lead-acid batteries are widely used both as traction batteries (for example, to power electric forklifts) and as starter batteries for cars. Uninterruptible and backup power systems for homes and enterprises also use lead-acid batteries.

Autonomous power supply systems of houses often contain a high-capacity battery, or an assembly of several hundred ampere hours, designed to provide long-term power supply to the home. Such a battery can be charged from various alternative sources of electricity, such as a solar panel unit, a wind generator and others, and the battery is discharged traditionally through a powerful inverter, from which consumers are supplied with alternating current of industrial frequency and standard mains voltage ...

If you look at today's industrial energy, if you pay attention to the dynamics of developments in the field of alternative energy, you can easily notice that such a stereotype has long been formed here: a flat river is basically not suitable for generating power at hydroelectric power plants.

Large hydropower plants are being built using equipment originally designed to produce large electrical capacities at steep edges or on mountain rivers, where the water flow rate reaches at least 2 m / s. Generator sets for such hydropower plants are not suitable for operation on a relatively weak stream of a lowland river.For these purposes (for any rivers), only hiking toys are sold for charging a couple of watts of cell phones ... Of course, to build a dam for the subsequent construction of an industrial hydroelectric power station is an expensive undertaking, it will pay for itself for a long time, and there’s no point in building it ...