Here are the services we offer
Whether integrating renewable energy or implementing energy management solutions – we proactively seek opportunities to introduce renewable energy and conservation measures into the energy mix of our customers and our own operations. Whether you are a manufacturer, hospital, university, or large commercial service provider, Energy Intelligence Africa Ltd will work with you to find the renewable energy solution that best suits your needs. All our technicians are trained and licensed by the ERC for installation of Solar PV and Solar Water Heating Systems.
Wind is the movement of air around our planet. It is created by the effects of the sun on the atmosphere and the earth’s surface. As the ground is heated by the sun, the air above it becomes lighter and rises, creating vacuums that are filled by cooler air. Wind is essentially caused by differences in atmospheric temperature and pressure.
Local winds are produced as the sun heats the earth in a given area. Prevailing winds are produced by differences in temperature between the polar caps and the equator. Man has been converting wind into mechanical energy for thousands of years, as ancient windmills and sailboats can testify. Modern wind farms are converting the kinetic energy of the wind into electrical energy.
Clean, renewable wind energy is the ideal alternative to fossil fuels. Wind turbines produce no atmospheric emissions, no harmful waste nor any other type of air or water pollution. And the noise produced by a wind turbine, as measured outdoors close to nearby houses, is no more than 40 dB, which is equivalent to the hum in a library. Wind energy is therefore particularly reliable and has multiple economic, environmental and social benefits. Not surprisingly, wind is one of the fastest growing energy sources in the world.
How a wind turbine works:
At the top of the tower sits the rotor, the main components of which are the blades. The blades are attached to a horizontal shaft connected to a generator inside the nacelle. When the wind blows it turns the blades, and the rotation generates electricity: as they turn, the blades activate a gearbox in the nacelle that runs the generator. The electricity produced is transmitted to a step-up station and then delivered to consumers through the grid.
The amount of energy produced depends on three main factors: wind speed, air density and the area swept by the blades.
Solar energy is produced as a result of nuclear fusion within the sun. This energy travels outward into space in the form of rays. The sun’s rays transmit two main forms of energy:
– thermal energy, or heat, which we have always used to heat our homes and greenhouses, for example. This “passive solar gain” can result in significant energy savings.
– light energy, in the form of photons, which can be converted to electricity using certain materials that naturally release electrons when exposed to light. This phenomenon, known as the “photovoltaic effect” is the basis of all solar energy systems.
The effectiveness of a solar energy system depends on a number of factors: the number of hours of sunshine, the season, weather conditions, albedo (the reflecting power of the surrounding surface), etc. Solar panels are always tilted and oriented to capture a maximum of light. The sun is a highly stable and predictable resource, which makes solar technology correspondingly reliable and easy to use. And because the sun’s energy is converted directly into electricity by a semiconductor, and requires no fuel or moving parts, it creates no pollution. As a result, solar energy is one of the cleanest, most renewable forms of energy around.
How a solar energy system works:
In a solar panel, each photovoltaic cell is made of light-sensitive semiconductor material. Such materials, of which silicon is a prime example, release their electrons when exposed to photons (particles of light).
In nature, electrons released by light-sensitive materials recombine immediately and do not generate any electricity. But a photovoltaic cell forces the released electrons into a particular direction to create an electric current. To do this, one layer of semiconductor material, such as modified silicon, is placed on top of another: one has a positive charge, the other, a negative one. When the cell is exposed to sunlight (i.e. photons), the electrons released travel from one layer to the other, generating an electric current.
This direct current travels along wires connecting the cells to each other, and the current from all the panels is collected via a series of combiner boxes. Inverters in substations then convert the direct current into alternating current for transportation on the electric grid. Finally, a series of transformers step up the voltage so that the solar energy system can connect with the grid.
• Free Consultation
We’re so confident we can find the right solution for your solar needs we’ll come to your home and walk you through all the options at no cost. Our certified sales professionals will analyse and discuss your electricity usage, take a look at your rooftop using digital imaging and provide a customized solar solution for your home.
• We design your custom solar system
After we design your custom solar solution, we send our installation team to conduct a professional site survey at your home, which involves taking precise measurements and assessing the condition of your roof and electric panel.
• Installation is a breeze (or a ray of sunlight).
Think it’s a big job to get your solar system installed? Think again! Most solar panel installations take just one day. We’ll schedule the installation on a day that works for you, send out the crew and ensure a worry-free process.