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Grid-Tie Solar > Renewable Energy Solutions

Grid-Tie systems tie into the existing utility grid. While it is possible to completely eliminate your utility bill with a grid-tie system, many homeowners use grid-tie systems to supplement their usage by using a combination of both their utility grid and their solar array (ie. 70% solar, 30% utility grid). A grid-tie system can also offset 100% of your energy needs.

Net Metering

Net metering is a program offered in many areas that allows you to feed excess energy generated by your solar grid-tie system into the utility grid in exchange for credit on your utility bill. For more specific information, you should contact your local utility.


There are three essential components to a grid-tie system: its solar panels, inverter, and mounting system.

SMA Inverter

Solar Panels

Solar panels come in all shapes and sizes. They can be classified in two general ways: monocrystalline or polycrystalline. While monocrystalline panels tend to be more efficient than polycrystalline panels, the gap between the two has been closing and today the main difference between them is the way they are manufactured. Monocrystalline panels are composed of a single silicon crystal; polycrystalline panels use many smaller crystal for a less expensive manufacturing process.

One thing to note is that your system is only as strong as your weakest panel.

See our solar panels for sale for more information on the specific modules that EcoDirect carries.


Inverters are necessary to convert the DC current produced by your solar panels into the AC current used in your home and appliances. You can either have a large central inverter and attach all of your solar panels to it or attach a single microinverter to each panel, reducing costs and improving efficiency.

See our solar inverters for more information, or go directly to our section for grid tie inverters.


The mounting system depends on your location. Wind speed, snow load, roof type, and available space are among the factors that play into your choice.

See our solar panel mounts or call us at (888) 899-3509 for more information.