Solar Power Systems Components Solar Panels Prices

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Solar power is power derived from energy from the sun. Energy can be derived from the sun in a number of ways, but we will focus on energy derived from the sun using photovoltaic PV devices or solar panels. Here we will name and explain the functions of components used for converting energy from the sun to electrical energy that we can use at home or in businesses.

Pros of solar power systems include:

• energy from sun is free
• zero emissions
• Solar Power Systems offer silent operations
• zero/reduced electricity bills
• the cost of running solar power systems is low
• solar panels lasts for up to 30 years with minimal maintenance cost

Cons of a solar power system include:

• Expensive: components cost a lot to acquire
• Require more space for battery bank & solar panels

Here are the components of a solar power system:

Solar panels

Solar panels are the major component of a solar power system. It converts light energy from the sun to direct current DC electric voltage. Solar panels are made up of arrays of photovoltaic cells (also called solar cells), connected in series and parallel to deliver rated voltage and power.

The photovoltaic cell is the basic component of a solar panel. PV cells are made from semiconductor materials, like silicon and doped with other elements, like Boron and phosphorus. These elements create an N-type layer and a P-type layer on the cell. The junctions between the N-type layer and P-type layer contains an electric field, which stops electrons from moving across the junction, effectively creating an open circuit.

When a photovoltaic cell is exposed to sunlight, energy-carrying particles in light called photons continuously strike the p-n junction area of the cell and are absorbed. Energy derived from these absorbed photons provides electrons on the cell with enough energy to overcome the potential barrier of the electric field in the p-n junction. This causes electrons to flow across the junction to power electrical appliances.

A solar panel consists of an array of solar cells, usually covered in glass. Solar panels provide power for charging your batteries and for powering your appliances.

Solar panels are expensive per watt when compared to a petrol generator, but uses free energy from the sun. For example, an 80 watt solar panel costs about N38,500 in Nigeria. Solar panels may also come in different power capacities.

Solar panels can last for up to 30 years.

One or more solar panels will be required in a solar power system. A two bedroom flat, for example will require three to 10 solar panels.

Prices of some solar products in Nigeria:

• 80W solar panels: N38,500
• 130W solar panels: N62,000
• 140W solar panels: N67,000
• 160W solar panels: N76,000
• Grundfos Sqflex solar pumps: N230,000

Related Topics

• Read this before attending a solar energy seminar

Inverter

For most practical application for homes and offices, an inverter will be required in a solar power system. Since a solar panel and batteries delivers DC voltage, it becomes necessary for a device to convert the DC output of the solar panels and batteries to AC voltage required by most home appliances.

An inverter converts DC voltage to AC voltage. Inverters sold in Nigeria will convert DC voltage from your battery to 220 volt 50 Hz AC voltage.

In some applications where DC voltage is required, an inverter will not be necessary.

A professionally designed 1200 watts true sine wave inverter, for a solar power system with one-year warranty costs about N120,000.

Batteries

Solar power comes from the sun; hence, at night or cloudy weather little or no energy can be derived from solar panels. This creates the need for a solar power system to store energy from the sun during the day so that at night/poor weather conditions it can be used to generate electricity. A battery stores energy in chemical form.

One or more batteries are connected in a bank to deliver required energy. Three to 10 batteries may be required for the solar power system depending on requirement. More batteries may be required if the solar power system will be installed in a location without grid connection (no NEPA/PHCN). Good sealed maintenance free Inverter batteries for a solar power system can cost up to N50,000.

Solar Charge controller

This ensures that batteries are not overcharged. Charge controllers improve the lifespan of your battery.

A solar power system also includes connection cables, fuses, grounding cable, and meter.

Eauxwell Nigeria limited is a dealer of Kyocera and Grundfos solar products like solar panels and solar pumps.

Prices of some solar products at Eauxwell are:

• Kyocera solar panel 54w: N43,200
• Kyocera solar panel 85w: N68,000
• Grundfos solar panel 80w: N68,000
• Grundfos Sqflex solar pumps: N200,000

Eauxwell Nig Ltd contacts are:
Plot J123 Joel Ogunaike Street, Ikeja GRA, Lagos
01-8180190, 01-4186288
www.eauxwell.com
info@eauxwell.com
eauxwell@yahoo.com

Simba Industries Ltd market Su-Kam branded solar power products in Nigeria, from solar inverters to solar charge controllers.

Simba contacts in Nigeria include:

Simba Su-Kam solar power inverters Lagos:

77/79 Eric Moore Road, Surulere, Lagos
Su-Kam Sales Hotline: 01-2199422, 01-7939655
rao@simbaonline.com

Simba Su-Kam solar power inverters FCT-Abuja:

IGI House, 3 Gwani Street, Off IBB Way, Wuse, Zone 4, Abuja
07056786202

Simba Su-Kam solar power inverters Kano:

167, Mission Road, Bompai, Kano
08034362230

Simba Su-Kam solar power inverters Maiduguri

10, Busari Road, Opposite Maiduguri Flour Mills, Maiduguri
08073692759

Simba solar power inverters Katsina: 08033225188

Simba solar power inverters Jos: 08034380994

Simba Sokoto: 08067049555

Simba Kaduna: 08032775001

Simba Lokoja: 08034380994

Simba solar powerinverters Minna: 08033241266

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