WHY SOLAR POWER SYSTEMS DO NOT WORK AS DESIRED (PART 1)

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A lot of people will not like to install a solar power system in their home because they claim it does not work well. They talk based on past experience or the bad experience of their friend. The truth is that when properly planned and implemented, solar power systems installation works very well. Some of the reasons why your solar power system will not work as desired include;

  • Inverter faults and errors

Inverter faults account for almost 50% of major solar power system failures. Go for good inverter brands that have good support like the JP2 brand of solar hybrid inverters to avoid annoying faults and failure. Typically when an inverter fails, the whole system shuts down and produces zero energy. There are many potential causes of inverter failure, and these will generally require a qualified solar technician to rectify the issue. Fortunately inverters like the JP2 hybrid power inverter have a 2 year warranty, so you should be able to get these faults fixed for free under warranty.

  • Microfractures

Microfractures, also known as microcracks, represent a form of solar cell degradation, they are small cracks that can appear in solar cells.

Some microfractures can span the whole surface of the panel, whereas others appear in only small sections of a cell. These cracks can affect both energy output and system lifetime of a solar PV system. Microfractures occur within cells and cannot be fixed without replacing the module. Care should be taken in determining whether the cracks are severely affecting the system performance, as it is not cost effective to replace well-performing modules.

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Potential causes include:

  1. Thermal cycling (variation of temperature between night and day)
  2. Humidity
  3. Etc.
  • Gradual Degradation

Although solar panels have over 3 years warranty and are designed to last even longer, there are many issues that can cause early failure. Most of these issues cannot be detected with the naked eye and require sophisticated analysis to identify and diagnose why the panel is producing less energy than it should.

These issues include:

  1. Hotspots
  2. Delamination
  3. Breakage
  4. High resistance (eg solder joints)
  5. etc
  • Positioning

The positioning of the solar panel also affects how much energy they produce. Facing the solar panels in the wrong direction will reduce the energy output. The tilt of the solar panel will also affect how much energy is produced. My advice is to make sure you engage the services of a qualified solar installation expert. He will determine your exact position using the solar compass and thus determine the correct tilt and direction, that will best fit you.

  • Temperature
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The amount of energy produced by a solar panel is approximately proportional to the amount of sunlight, so sunnier climates will generate more energy.

  • Shade

Solar panels are usually placed on roofs, since they can stay without obstruction and receive the maximum amount of sunlight. However, it is not always possible to get a 100 % clear view of the sky, as trees or other homes or buildings can create shade over the solar panels during different times of the day. Owners will have to ensure that they install solar panels in a place with the least amount of shade, especially during peak times.

  • Battery

The quality of your battery matters a lot. The number of batteries also plays a major role. It is common knowledge that the sunlight during the day charges batteries and that the charge in the batteries will be used at night when there is no sunlight. Bearing this in mind, you will need to get good quality batteries and enough batteries that will store enough energy for use at night.

  1. Your load

Make sure that the entire load connected to your solar power system are energy saving, energy efficient load. The lower the power consumption of your entire load, the more efficient your solar power system will be. Try not to overload the system. Use only essential load.

  • Charge controller
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The MPPT solar charge controller is your best choice. It is better and helps charge your batteries better. Make sure you utilize good charge controllers from good manufacturers. Make sure you make use of the correct amperage that best fits your array of solar panels. Ensure the connectors are firmly fastened. I equally recommend you go for good quality solar hybrid power inverters that will efficiently charge your batteries with power from the sun, city power or power from you generator.

  • Cable gauge (wiring loss)

The correct cable gauge will ensure you have minimal losses. Use the correct cable gauge and very good quality cables too for your installation.

  • Dirt

Dirt can also lead to low efficiency. Make sure the surface of your solar panels are cleaned periodically.

  • Inverter Efficiency

The inverter you make use of matters a lot. Make sure you make use of a good pure sine wave hybrid inverter that has high efficiency. I have tested the JP2 hybrid inverter and I can assure you that it works well and has high efficiency.

To be continued…

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4 thoughts on “WHY SOLAR POWER SYSTEMS DO NOT WORK AS DESIRED (PART 1)

  1. The design of your web site is unique..
    You table everything concerning solar energy in a way that even a layman can understand..Kudos to you Director.
    The contact address should be included. Thanks.

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