Frequently Asked Questions
Yes! Solar is a great and secure investment, better than investing your money in savings accounts or IRA’s.
If you are looking for an ethical place to put your money then solar PV will benefit you and the planet.
A PV system that is designed, installed, and maintained well will operate for more than 30 years at 80% of performance. The basic PV module (interconnected, enclosed panel of PV cells) has no moving parts and can last more than 30 years.
The best way to ensure and extend the life and effectiveness of your PV system is by having it installed properly. Experience has shown that most problems occur because of poor or sloppy system installation.
PV can be used to power your entire home’s electrical systems, including lights, cooling systems, and appliances. PV systems today can be blended easily into both traditional and nontraditional homes. The most common practice is to mount modules onto a south-facing roof, or ground mounting.
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The average domestic system will take 5-8 hours to install.
To avoid system failure, complications or injury, you will want to hire a reputable professional contractor with experience in installing solar systems. PV systems have few moving parts and require little maintenance. The system’s components are designed to meet strict dependability and durability standards that withstand the elements. However, they are fairly sophisticated electric systems to installation which require the knowledge and experience of a licensed contractor.
When certain semiconducting materials, such as certain kinds of silicon, are exposed to sunlight, they release small amounts of electricity. This process is known as the photoelectric effect. The photoelectric effect refers to the emission, or rejection, of electrons in response to light.
Solar PV generates electricity from light (photons). The more light that shines on them the more energy they produce.
Contact us if you have concerns about your system, or you think it’s not generating as it should. We will send someone out to resolve the issue.
The prices of oil and other non-renewable sources are on the increase. This trend will continue, getting more dramatic as shortages of supply increase. The price of your electricity from solar will never increase as the fuel is free and infinite!
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Alternating current. An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
Direct current. Is the unidirectional flow or movement of electric charge carriers (which are usually electrons). The intensity of the current can vary with time, but the general direction of movement stays the same always.
Charge regulator or battery regulator limits the rate at which electric current is added to or drawn from electric batteries. It prevents overcharging and can protect against overvoltage.
Also called tied to grid or grid tie system, is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid. When insufficient electricity is generated, or the batteries are not fully charged, electricity drawn from the mains grid can make up the shortfall.
Is a combination of an inverter, battery charger and transfer switch into one complete system. When ac power is available, the inverter/charger recharges the house batteries. It also allows any surplus ac power to pass through and power downstream ac loads, such as a television set or microwave oven. When ac is disconnected, the unit inverts dc battery power into ac electricity.
(symbol kwh, kw·h, or kw h) is a unit of energy equal to 1,000 watt-hours, or 3.6 megajoules. The kilowatt-hour is commonly used as a billing unit for energy delivered to consumers by electric utilities.
Is a device used in photovoltaics that converts direct current (dc) generated by a single solar module to alternating current (ac). The output from several microinverters is combined and often fed to the electrical grid.
A packaged, connected assembly of solar cells.
Or maximum power point tracker is an electronic dc to dc converter that optimizes the match between the solar array (pv panels), and the battery bank or utility grid. To put it simply, they convert a higher voltage dc output from solar panels (and a few wind generators) down to the lower voltage needed to charge batteries.
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National Renewable Energy Laboratory. Is the united states’ primary laboratory for renewable energy and energy efficiency research and development. The national renewable energy laboratory (nrel) is a government-owned, contractor-operated facility, and is funded through the united states Department of Energy (DOE).
Refers to a photovoltaic module or to a set of solar photovoltaic (pv) modules electrically connected and mounted on a supporting structure.
An example would be our Youtube Studio on Solar Energy. It is completely Off-Grid
Is a climatological indicator, measuring the duration of sunshine in given period for a given location on earth. It is a general indicator of cloudiness of a location and thus differs from insolation, which measures the total energy delivered by sunlight over a given period.
Understanding Price and Terms
Each PV module has a specific power rating that identifies how much electricity that module will produce at the point the sun is strongest. The ratings from all the modules in a system are totaled to get the full power rating for the system. The cost of your complete system (modules, inverter(s), mounting system, wiring, design, engineering, jurisdictional permitting and installation) is then divided by the total maximum power rating to get the cost per watt.
Example: A 2,000-watt system, that has a total cost of $8,000, is considered to cost $4 per watt.
Solar PV Site Evaluation
Solar-Ray provides one of the most thorough and precise solar site evaluations in the industry. Below is a description of what you can expect. Call today to learn more or schedule an appointment (407) 250-1263, or email firstname.lastname@example.org.
- Full year’s analysis of your solar exposure from five points of the projected array location using digital imaging from a Solar Pathfinder.
- Identification of significant shading objects with the time of day and month they will occur.
- Basic design and price estimate for a recommended system including module size, array configuration, wiring diagram, inverter selection, and balance-of-system component location.
- Spreadsheet of estimated daily AC production using regional solar radiation data from the U.S. Department of Energy and calculations of inherent system power losses.
- Product specifications and warranty information on selected modules and inverter(s).
- Current information on your utility’s net-metering and interconnection policy.
- Information on applicable building codes, safety regulations, Florida construction contracting law, and recommended best practices for system installation.
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