The quantity of Watt-hours you intend to produce in twenty four hours.

Identifying your Watt-hours goal is the most vital part of correctly guesstimating how enormous a system you’ll need. If you intend to tie your solar array at once to the grid to offset your costs, start by having a look at your electrical bill for the kilowatt-hours you use in a month. If you won’t be hooked up to the grid and you may in reality be producing all of your own electricity, the Watt-hours or kWh number becomes even more crucial. If you’ve got the patience to live off-grid, then you definitely have the tolerance to finish a loads list.

If you do not know how many Watt-hours you need to produce, stop here. There’s no guessing you can do without that basic building block of knowing your energy consumption.

Insolation is a funny word for the amount of hours in a day that a solar panel will produce its rated voltage. While all of the day’s sunlight counts toward this total, not only the brightest hours, not every daytime hour counts the same.

When the sun is low in the sky, a solar panel facing it does not produce as much energy as it would at midday. An alternative way of putting it might be to assert that if you crammed all of the day’s daylight into equivalent hours of top sunlight, you’d have the sun hours, or insolation, number.

In your neighborhood, while the sun could be up for ten hours in a Feb day, not all that light is powerful enough to be counted at full worth, so the insolation price in your neighborhood may be nearer to two sun hours. In our calculations, we use average insolation values taken from years of info collection. Insolation varies by location as well as by month. If you are arranging an all year solar electrical system, the yearly average insolation value will give you a good place to begin for your estimation. If you only plan to use the array seasonally, then use the insolation values for those months only.

Take a look here if you want to know how to build a solar panel.

Nobody likes to take cold showers.  Dishwashers are impossible to operate without heat.  Water heaters come in many styles and sizes.  The majority of the heaters run on fossil fuels.  If you live in any climate, do you realize you could actually build a solar hot water system for your home or office? You will want to make sure it’s done properly, and to save a little on labor and supplies, you can in reality build your own system.

One source is solarfriend.co.uk, the site goes into good detail about what is needed to install your own system.  The author of the website claims their household has the potential of spending only £300 annually on electricity using the solar hot water system they installed.  This site will give you great detail, with step-by-step photographs, on how to build your own flat plate or evacuated tube solar collectors, panels and pipes.  The author explains the difference between the two systems, while providing diagrams as visual aids. There is also mention of a freeze-proof roof mounted water panel.

The El Paso Solar Energy Association (epsea.org) has many tips on alternative energies, including using the suns energy for passive solar water heating.  Passive solar heating is the oldest form of commercial solar energy. Terms you might find familiar include PSWH, Batch heater and Bread Box – and these are the passive solar water heaters.  General descriptions are given for these systems on this site, as well as general information on how to build your own.  For instance, you can paint your water heaters a flat black to retain more heat for longer periods of time.  Small diagram drawings are provided to show you some of the final products that you can build alongside verbal instructions on the build.

Several different types of solar water heaters are covered on jc-solarhomes.com.  Whether you are interested in passive or active energy.   Diagrams are given to the readers for assistance in building their own solar hot water systems.    Minimal verbiage is provided to the public. The site does offer a lot of FAQs that should be able to answer most consumers’ questions about cost, how solar power works, and how the systems work.  Flow rate theory and flow dynamics are given their fair share of educational points.  This site gets into some of the nitty-gritty that engineers may be interested in knowing.  If you are to purchase the E-book that is available at the site, you will be given step-by-step instructions and a total list of supplies needed to build your own system.

Popular Mechanics has an article on their website regarding the "Energy Family" making their own solar water heater.  This family has piggybacked their solar system on with a propane system.  They are trying their best to retain a small carbon footprint.  There is a four-step method covered with matching photographs as the family put together their system.   Supplies are listed so that you know what you need to purchase to get started.  Some general information regarding savings and costs involved are also given to the reader.  A very informative comment section can be seen at the end of the article, allowing you to learn even more about the solar hot water systems.

The best recommendation that can be offered would be the first site.  It is the most informative of the bunch, and has photographs, diagrams, and verbal instructions so that most anyone can follow and be able to manufacture their own solar hot water system with a minimal amount of problems.  Ideas are complemented with suggested buys for the parts needed so that you can start your savings right away.

The ultimate resource of the planet Earth today is the sun, which provides the planet with heat, radiation and light. There are a lot of technologies that source energy from fossil fuels to generate electricity. The undeniable fact is that the sun showers the Earth in a stable and steady form of energy that surpasses what the planet needs for electricity consumption.  Modern-day technology has developed rapidly and knows how to generate solar energy very efficiently and yet simply -  it fundamentally converts the sun’s power into electricity.

In view of the fact that producing electricity directly from the sunlight does not drain any of the planet’s natural resources, and is supplying the planet with energy continuously, solar energy is a source that can be renewed anytime and used to generate electricity. To put things bluntly, the planet Earth’s principal source of renewable energy is solar energy.

PV or photovoltaic is one of two basic types of approaches in turning the sun’s power into electricity.  Originally formulated for a space program more than 30 years ago, a photovoltaic device (commonly labeled a fuel cell), relies on the build-up of chemical responses to produce electricity. PV cells are tiny, square, semiconductors covered in slim film layers from conductive materials and silicon. When sunlight hits a photovoltaic cell, it causes some chemical reactions and release electrons, producing electric current. These photovoltaic cells are then installed in modules and can power a home as well as a business or can be plugged into an electricity grid. In today’s economic climate, you find more and more people fitting these to the roof of their house in order to drive down their energy bill.

The second basic type of approach is the solar-thermal technology. This approach is a relatively conventional type of electricity generating process. It uses the sun’s temperature to heat water and produce steam to drive electric generators. A solar thermal collector is a device purposely intended to accumulate heat: To be exact, absorbing sunlight to produce heat. While the expression may be applicable to an uncomplicated solar hot water panel, it is frequently used to denote extra intricate installations. There are an assortment of forms of thermal collectors, for instance, solar trough, solar towers, and solar parabolic. These kinds of collectors are commonly used in a solar power plant where solar temperature is utilized to produce electricity by heating up water to create steam which drives a turbine linked to an electrical generator.

Two further types of solar-thermal technologies are nearing to be categorized as marketable. One is the parabolic dish system.  It is the most dominant type of collector which focuses sunlight in a single, central point, through one or more parabolic dishes — set in a comparable method to a reflecting telescope focusing starlight, or a dish antenna focusing radio waves.

The second type of solar-thermal technology is the central receiver system. Conceptualized for solar energy absorption and gathering is based on a field of independently sun-tracking mirrors that echoes the occurrence of sunshine to a recipient at the top of a tower located midpoint.  On average, 80 to 95 percent of the replicated energy is engaged into the working fluid which will be then pumped up the tower and into the recipient.  The heated liquid forms a stream down the tower and then into a thermal converter more likely to a thermal electrical power plant.

The fundamental disparity between the central receiver system and the parabolic dish system, is all of the solar energy to be accumulated in the whole field, is passed on optically to a miniature central collection station rather than being channeled around a field as hot liquid.  Due to this characteristic, all central receiver systems are distinguished by high temperatures and large power levels.

Energy and power is derived in due course from the sun. It may be direct or indirect, but the fact of the matter is energy sources on Earth are types of indirect solar energy. Although we usually don’t consider them that way, oil, coal and natural gasses derived from prehistoric biological material which obtained its energy from the sun (photosynthesis) thousands of years ago. Knowing how to generate solar energy economically is definitely a must-know for the next generation and to put a stop to depleting the earths natural resources.

It is very important, if you are looking into solar power, that you learn how a solar furnace works.  Knowing this information will help to ensure your safety and help you get the most from solar power.

The Basics of a Solar Furnace

A solar furnace captures the suns power and focuses it into a high temperature stream.  The furnace is actually a collection of curved mirrors or mirrored surfaces that capture the rays and reflect them to a single point where the energy is focused.  This focused energy can reach a temperature of over 5,400 degrees. 

The energy or heat collected and focused by a solar furnace can be used in many different ways.  It can be harnessed to create electricity, melt metals, or create fuel by turning water into steam.  It can also be used to cook food.  There is some work with trying to harness solar energy on a large scale to serve as a renewable energy source to heat homes and provide power to homes.

A solar furnace is very reliant upon good, sunny weather.  Without direct sunlight shining of the reflective surface, the furnace has no power.  This is why when using a solar furnace for continuous energy it is important to have other elements, like storage that captures and contains the energy to be used later.

Creation of a Solar Furnace

The basic set up of a solar furnace is simple.  All it takes is 2 mirrors or reflective surfaces pointed to reflect sun to a focal point.  As the number of reflective surfaces is increased, the power harnessed by the furnace increases.  This is because the sun’s rays are multiplied with each surface it is reflecting off.

It is very important that the reflective surfaces are aimed accurately at the focal point where the energy is collected.  All reflective surfaces need to be reflecting the sun to the same point or else the energy will be scattered and the result will not be as powerful.

Concerns About Solar Energy

There are some safety concerns about the use of a solar furnace since the temperature of the heat is so extreme.  At the focal point, the suns energy is hot enough to melt metal.  It is almost like a laser that could cut the hardest surface.  This focused energy must be treated as very dangerous.  It is essential to always use protective gear and follow strict safety standards when working with a solar furnace. However, in terms of impact on the environment, it has to be one of the cleanest energy sources available.

As mentioned, solar energy is not 100% reliable.  The sun may not shine everyday, or it may not shine bright enough or on the reflective surface long enough to produce adequate power for your needs.  A lot of planning is required so that you can harness the power you need and create storage of power to create a reliable energy source.

The basic process of how a solar furnace works is actually an easy concept to figure out and the basic materials you need to build one are just a couple of mirrors.  It is the different factors of using a solar furnace that requires some attention and skill to ensure a good final result.

If you have a solar water heating system, it would make sense to have a solar water pump. These are typically circulating pumps and have their own in built solar panel which means you do not need a battery. A circulating solar water pump has a lift of about 650 feet and can fit into very small areas, down to 4 inches square.

This means that after the payback period, you get an annual supply of hot water for about 50 bucks – sounds good to me.

If you are using solar energy to power your lights make sure you are using energy saving light bulbs to maximise your savings. If you are taking energy from the grid (and not generating your own power) you can save up to $1000 on your bills.

Most people think they are just as good as ordinary ones. However, only 50% of homes use them and of those 50% they are only used on average in 5 out of a possible 24 places. Quite a strange fact that and food for thought. Therefore, make sure you are using energy saving bulbs and get two wins from your solar lighting.

You can get solar panels to put on your roof or walls which collect the suns energy and convert this to heat for your home. For a 1500sq ft home you will need about 150 to 190 sq ft of solar collecting area. Depending on which conventional fuels you currently use it could take 10 to 15 years to pay back on your solar heating investment.

You should be able to build a 100 watt panel in about a day, so it shouldn’t take too long to cover all your residential home electricity needs.