Solar power – derived from the sun – is an extraordinary and limitless source of energy. After the initial cost of a solar panel system, the benefits are permanently and freely realized. Additionally, such an energy source has a number of benefits for the environment.
The sun already gives energy to all life forms on Earth on many different levels. Plants are able to naturally absorb the solar energy to grow. It is the byproduct of such energy that is used in “biomass” fuel (through the burning of plants for energy) or in the form of coal and oil (which is formed after millions of years of plant composition). Solar power essentially skips these “middle-men” fuels and goes right to the source – the sun – for a cleaner, more efficient, and naturally abundant energy source.
To take advantage of solar energy, there are systems available to consumers that enable one to gather and store solar power for personal use. Such a system uses an interconnected assembly of solar cells (otherwise known as photovoltaic cells) to create a solar panel – one component in a grand scheme of photovoltaic system. A solar panel “kit” typically consists of a collection of solar panels, an inverter, batteries, and interconnection wiring.
Each solar panel uses photons, or light energy from the sun, to generate electricity through the photovoltaic effect – creating voltage upon exposure to the sun’s electro-magnetic radiation.
Due to the obvious reliance on the sun’s energy, solar panels are typically installed on rooftops to give the panels the most direct sun exposure possible. It is always recommended that the photovoltaic array be positioned for maximum exposure at peak sunlight hours (around noon). Any obstructions to sunlight such as branches of trees should be removed – even if not in direct line of sight – keeping in mind the shadows that may be cast over the solar panels will interfere with the system’s efficiency.
With the continued development of photovoltaic panels and growth of interest among consumers, costs are continually being driven lower. Additionally, through strong federal and local incentives and net metering policies, the photovoltaic industry has placed more research and resources in developing systems for the residential and business consumers.
The best way to determine the value for investment is by measuring the dollars per watt ratio. Though the costs are continually being driven down due to technology and demand, the current rate on solar cells is about $4.30 per watt. Generally, a photovoltaic system providing between 1 to 5 kilowatts are usually sufficient to meet the electricity needs of most homes. A less wattage (and more budget-friendly) system could be utilized in a grid-tied system, to offset the electricity needs, which can continually grow as your budget may allow.
Working with a solar panel installers or contractors will allow you to have a more accurate assessment of costs, rebates, and savings. Such a professional is also be able to work with the size and price that best fits your needs. As with any major purchase, it’s advised that you ask for several bids among local contractors for the best quality and price.