Renewable energy can come from a variety of sources but no matter where it comes, you have to connect it for use. There are three basic ways renewable energy systems can be connected; grid-tied, off grid, and a hybrid system that uses parts of both. Each has their advantages and disadvantages.
Most utilities today are required to allow residential customers to connect their renewable energy systems to their home wiring and use the power directly in the home, and when you produce more than you need, sell it back to the utility company. Direct grid-tied systems are cheaper to buy and install than off-grid systems and require less maintenance, making them a popular choice for the average home or business user today. The biggest disadvantage to a straight grid-tied system is that the system automatically shuts down if the power goes out from the utility for safety reasons.
When utility power is not available or expensive to run to a remote location, an off grid system can be the best choice. Off grid systems can combine multiple technologies such as solar electric, micro-hydro, and wind turbines along with battery storage and backup generators to supply power as needed for remote cabins, homes, RV's and boats. Unlike grid tied systems which only require sizing to average power needs, Off-grid systems must be sized to supply peak power requirements.
Hybrid systems combine the best of both worlds allowing users the advantage of grid tied capacity and storage, while offering the peace of mind that if the power goes out from the utility, your hybrid system can supply critical power needs to the home until the power is restored by the utility. Hybrid systems will typically include battery based backup storage and automatic transfer switches to insure the safety of utility workers.
Energy on a Stick, Inc.
336-384-WIND (9463)
sales@energyonastick.com