ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel
  • »
  • Technology»
  • Renewable & Alternative Energy

Home Solar Energy Panels - What is It, and What Does It Do?

Updated on September 22, 2014

Is Solar Panel Technology The Future?

See results

What is a Solar Panel, and How Does it Work?

Solar panels are the rectangular or square shaped frames comprised of several small units or solar cells that are made from special materials. These panels together with some inverters, batteries, interconnecting wires and solar trackers can be used to generate DC power from sunlight. Therefore, solar panels form part of photovoltaic system in which photons from sunlight are utilized to generate power. Multiple solar panels can be used to form arrays, which generate more power.


Each solar panel is made from several thin slices of semiconductor materials like silicon. These slices are known as wafers. Solar wafers are usually square in shape. These solar cells have textured rough surface so that such cells can be more effective. For making such wafers, crystalline varieties of silicon or similar materials are used. Such crystalline structure of materials also helps in improving the efficiency of solar cells. Some impurities are also added into silicon cells so that the resultant material becomes a better conductor of electricity. Such doping is done to ensure that electrons find it difficult to settle in any opening left by another electron that has moved out due to heat. This process is quite like the musical chairs wherein if electrons that do not find any chair to sit in have to move on.


Doping is done with two types of elements; one that has excess electrons to spare, and another that can accept electrons. For example, when silicone doping is done with electron surplus element like phosphorus, the resultant silicon is called n-silicon, representing the negative charge. When it is done with an element like boron, there is an opening available for the free electrons to settle in. Therefore, resultant silicon is the p-silicon.



At times, a thin film may be used and covered with photovoltaic materials such as Cadmium Telluride, Amorphous silicon, thin film silicon, or copper indium gallium selenide, to create such solar cells.


Basic electrochemical principle behind solar energy is that sun's rays heat the panel material. In the process, electrons lodged on the outermost orbit of the materials such as n-silicon get excited and escape the atomic and molecular forces holding them back in the material. These free electrons move around, and are referred to as carriers of negative charge. A few reach a junction where they may come into contact with another material that has a different potential such as p-silicon.


It is an accepted fact that every material exhibits certain electrical potential in relation to another when it is in an electrical field. Therefore, such potential difference exists between n-silicon and p silicon, when these two surfaces are interlinked from outside using interconnecting wires, inverters, batteries, etc. Effectively a cell circuit is created. Here, the electrons start moving in the direction of positive charge and this process continues till both ends are at equilibrium.


When electrons start moving towards p silicon in this fashion, other electrons also get oriented towards the same route, and their speed increases. In the process voltaic current is generated. This current can be tapped and controlled using charge controller.


Solar cell may, therefore, have n-silicon on one surface and p silicon on other surface with a junction layer in between the two surfaces. However, the surface facing the sun, i.e., the surface with n-silicon, has a few additional coatings. The first of these is antireflection coating meant to prevent or minimize the sun's heat from escaping the solar panel. Above this is a transparent adhesive layer which is finally covered with a layer of glass. These layers are necessary because moisture and dust can adversely affect the performance of such solar panels. Glass can also be cleaned more easily than the silicon wafer.


Solar panels are also rated based on the amount of power that can be generated using such panels. Such panels are quite durable and can last for several years. Initial costs of installing solar panels and relevant systems are on higher side, but over the years, this form of energy is more cost effective than conventional sources of power. Solar energy is also environmentally friendly because fossil fuels are not burnt to generate it, nor are there risks of radiation that come with nuclear power. As of now, supply of power from solar power unit is more reliable when compared to hydro power or wind power. All such factors weigh in favor of solar energy, especially since most of world is facing energy crisis.

Home Solar Energy Panels

Are you looking to get home solar panels? There’s a number of advantages and disadvantages to getting these panels. Here’s what you need to know about home solar panels.

Advantages

The main advantage to home solar panels is that they will save you huge amounts money on your home heating bills over time. You are using a free energy source which is the sun and this is also good for the environment because the solar panels create no pollution. Solar panels are eco-friendly and they make a great option for those that have concerns about the environment. This is considered a clean energy source and it causes less impact than oil, coal, regular electricity, and natural gas sources of energy. Solar panels also cause no noise pollution or other pollution. These panels don’t require a lot of maintenance over their lifetime so there’s no costs associated with upkeep of the solar panels. These panels can collect and store solar energy and then have it available for later use.


Solar energy panels can last around 30-40 years so they have a long lifespan and won’t need to be replaced as often as other home heating sources. They come with long warranties so they are guaranteed to last. When you install them there’s few problems with the panels. Periodically they need to be washed off and inspected but that about all the maintenance they require. Another advantage of the solar panels is that make an attractive option for someone looking to buy an eco-friendly home. The solar panels add to the overall price of the home and this means that you can make more money on the home if you decide to sell it.

Disadvantages

The major disadvantage of these panels is that the overall cost to install them is very expensive. The cost is typically $15,000 on the low end and goes up from there. Many people on fixed budgets simply can’t afford this type of expense. If the home receive heavy shade it can be difficult to install solar panels as they won’t receive enough power to operate properly or they will be less efficient. There needs to be an appropriate roof or other location for the solar panels.

The roof needs to be strong enough to support their weight so some people may not be able to install them or only have access to limited solar panels that don’t provide the energy required for the home. Some areas may have building code that prohibit the installation of solar panels in a home. In some areas there’s a limit to what solar panels can do because of the location. In areas where there is little sunshine the operation of these panels would be problematic although some power can still be collected.


For the most part home solar panels have more advantages and disadvantages. The costs can be made up over time and they make for a great addition to most homes. It’s up to the individual to decide if they want to make the investment in solar panels or not.

Home Solar Panel Installation

Comments

    0 of 8192 characters used
    Post Comment

    • Maira818 profile image
      Author

      Maira818 4 years ago from Los Angeles, Ca

      Thanks a lot Alphapx :)

    • Alphapx profile image

      Alphapx 4 years ago from Philippines

      This is awesome. I know this is very expensive but someday I would build this one. Thanks for this very nice hub. My knowledge of solar panel has been added.

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: "https://hubpages.com/privacy-policy#gdpr"

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)