There are four different types of photovoltaic cells: monocrystalline, multicrystalline, ribbon, and amorphous silicon. While it is slightly more expensive to make than other types of photovoltaic cells, monocrystalline photovoltaic cells provide the most superior efficiency in the smallest space.
Nu-Cell solar modules are solar panels made with monocrystalline silicon. These high-powered solar panels are good for commercial and residential settings.
Each panel is rated by Standard Test Conditions (STC), which measures the panel's power output when it receives 1,000 watts per square meter of solar irradiance at 25 degrees Celsius. This means if you bought a 200 watt solar panel, its rated STC power is 200 watts.
Rated power tolerance is a percentage that will tell you the range in which your panels will perform. The number is usually shown as +/-3 and means that a 100 watt solar panel will rate between 3% above and 3% below 100 watts. If you are looking for maximum performance, look for a number with a low negative number or just a positive number. Nu-Cell solar modules have a +3 rated power tolerance!
When it comes to how much space solar panels take up, look for the rated power per square foot. Example: a rated power per square foot of 10 watts equals 100 watts out of 10 square feet of solar panels.
Module efficiency is a percentage of how efficiently solar modules convert direct sunlight into electricity. Nu-Cell's module efficiency is 15%! This means Nu-Cell modules convert 15% of the direct sunlight they receive into electricity.
Maximum power temperature coefficient is a percentage per degree Celsius. Panels create electricity from the sunlight. The heat from the sun reduces solar panels power output. If you live in a hot climate, you will want to know the maximum power temperature coefficient rate for the solar panels you choose. Nu-Cell panels work well in warm environments. Please check the spec sheets regarding the temperature coefficient for the solar module you choose.
Usually there are two types of warranties: materials and power. A materials warranty covers the actual panels. The power warranty is on the power output of the panels. The Nu-Cell panels have a product warranty of 10 years. The power output warranty is 90% at 10 years and 80% at 25 years. This means that in 25 years, Nu-Cell solar modules will still produce 80% of the power they produced when first installed.
Connected directly to the home and to the electric utility grid. Grid-tie systems receive power from the solar system or the utility company.
The advantage of the grid-tie system is that it switches seamlessly between the solar system and the utility grid. When a grid-tied system makes more power than the home consumes, the excess electricity can be sold back to the utility company. When there is not enough sunlight to make solar power, electricity can be drawn from the utility grid.
Not connected to an energy grid at all. These systems require battery storage so that electricity is available during times of no sunlight.The addition of batteries and other equipment required by off-grid systems causes them to be more expensive than grid-tied systems.
In cases where it is not feasible to connect with the utility company (such as remote areas) these systems are necessary and sometimes cheaper than running power lines. Batteries must be replaced within 5-10 years and usually are attached to a generator for additional power backup.
Grid-tied systems with a battery back up.The charged battery provides electricity when more power is needed than is currently being produced such as during non-sunlight hours or during a power outage. Because the system is tied to the grid, excess power is sold back to the utility company.
Even though these systems provide power storage and little reliance on the grid, they are not a popular choice due to cost of the batteries and installation.
Nu-Cell Solar & Air provides everything you need to get your home and business powered by solar.