Bright days for solar solutions
Light energy captured from the Sun—or photovoltaic energy—provides a ready source of non-polluting electricity. It's predictable, scalable, and renewable. Using solar solutions in remote areas outside electric-utility grids is more than convenient—it's almost a necessity. But industry pioneers like GreanGrid Solar are rapidly implementing solar solutions within the existing utility grid to fundamentally restructure how we all produce, distribute, use, and conserve energy. And now GreanGrid Solar is making it possible to "go solar" with almost no upfront costs. GreanGrid Solar works with qualified property owners to determine solar-leasing rates that are consistently at or below typical electric-utility rates for comparable usage levels. That's right; You can get clean energy for the same, or less than, the electricity you get now from fossil-fuel-burning power plants.
How a solar-energy system works
Solar panels convert sunlight into direct current (DC) electricity which is then routed to the Inverter
The Inverter converts DC electricity into alternating current (AC) electricity
AC electricity then travels to the electrical panel/circuit-breaker box where it's distributed throughout the building
When the system produces more electricity than is being consumed, surplus electricity flows through the net meter and out to the utility grid. This creates an electricity credit that can be used when the system's solar panels are not producing electricity—such as at night
Inside solar photovoltaic (PV) systems
At the heart of the solar PV system are solar cells, made of semi-conducting materials—typically silicon with trace amounts of other elements. When sunlight (photon energy) strikes the surface of the cells, electrons flow and electricity is generated instantly.
There are two types of PV cells in use today—crystalline and thin film. Groups of solar cells are packaged into standardized modules—mounted in rigid frames or semi-flexible materials—that produce specified voltages and currents. Modules can then be selected by standard to meet individual consumer energy needs. Modules with support structures comprise arrays, which can be setup in fields to meet higher energy requirements.
PV systems include inverters to convert the direct-current (DC) power generated by solar cells to alternating-current (AC) power used in households. Surplus energy can be stored in batteries to maintain power flow even when the sun isn't shining.
Surge in on-the-spot use
Around town and country, municipalities, businesses, and individuals are customizing solar-energy solutions to address specific, localized energy needs. Scaled solar-energy systems power everything from phone stations to microwave-repeater stations. From street and warning lights to traffic signals and emergency call stations. And from water pumps to electric fences across farmlands. Solar-powered battery chargers offer an increasingly popular way to keep motorized vehicles, boats, and other equipment fully charged.
Today, the demand for solar power is surging, spurred by industry innovations—such as "thin film" modules—that continue to improve solar-panel efficiency. Electric utilities around the globe are using solar energy to produce and distribute electricity to their
Now, as competition drives down costs, companies like GreanGrid Solar offer businesses, non-profits, and homeowners across the U.S. attractive solar-energy alternatives to electric-utility options. GreanGrid Solar works with qualified customers upfront to help keep the monthly cost of solar energy comparable or below what is currently being paid for conventional electricity.
In addition to the immediate and long-term cost advantages of using solar energy, the benefits to the environment are considerable. Widespread use of solar-energy systems can offset demand for energy generated by conventional fossil-fuel combustion.
Ah, breathable air
The negative impact of fossil-fuel combustion on our environment is well documented. Air pollution compromises human respiratory health, damages agricultural crops and forested ecosystems, corrodes buildings and infrastructure, reduces visibility, and has contributed to global warming. Air pollutants released during the energy-production process include carbon dioxide, sulfur dioxide, nitrogen oxides, methane, carbon monoxide, particulate matter, and a variety of hydrocarbons that are toxic to animals and plants.
Solar-energy systems generate zero emissions and can help offset the demand for energy produced by burning fossil fuels. As green ideas go, solar energy is like a breath of fresh air.
Consider, for example, the benefit of installing an efficient solar-energy system in a 2,500 sq-ft house in the southern U.S. A 3.5 kilowatts (DC) rooftop PV system can generate 5,000 kilowatt-hours per year of electricity, and offset about 8,500 pounds of carbon dioxide, 11,000 grams of sulfur dioxide, and 12,500 grams of nitrogen oxide. Now imagine the impact being created by the commercial buildings across the U.S. that are going solar too!