Types of Solar Systems

Grid-Tie

The most financially economic, and commonly used photovoltaic system today. Grid-tie solar systems seamlessly integrate with the utility grid to provide constant power to your building. In a grid-tie solar system, a roof or ground mounted photovoltaic modules generates DC (direct current) electricity. The power is then transferred to an inverter, where it is converted into AC (alternating current) electricity, ready for use by your home or office. If you don’t need the extra power, your utility meter will “spin backwards”, creating a credit for your home, and provide clean power to someone nearby who needs it. In the event that the utility grid should go down, your building will also experience a power loss, since the system relies on the grid as a battery for electricity.

Grid-Tie, Battery Back-Up

A grid-tie system with battery back-up provides the safety and security of knowing that you will maintain power production if the utility grid is down, but if you exceed your solar system’s power production capacity, the utility grid’s electricity is available to you. Unlike a grid-tie system, a battery back-up solar electric system will continue to operate when there is a power outage from the utility company. In a battery back up system, DC power generated from your solar modules passes through a charge controller, and is stored in a battery bank. When you need power, it passes through the inverter, where it transforms into AC power. Excess power beyond your battery storage capacity is transferred to the utility grid.

Remote Power (Off-Grid)

Remote power systems are most commonly in areas where electricity is not available, or is extremely expensive. Remote power solar electric systems are not connected to the utility grid. DC power is generated through solar modules mounted on the roof or ground, where it is then stored in a battery bank for future use. When needed, the DC power is converted to AC power via an inverter.[/styled_box]

Net Metering

When the sun is shining, there’s a good chance that you will produce more power than needed. A net metering agreement between you and your utility provider will allow you to benefit from the excess energy generated by your system, which will overflow into the utility grid, “spinning” your meter backwards. You will receive credit for this power at the same rate your provider utility sells it for. Net metering agreements area available for both grid-tie solar electric systems, and grid-tie, battery back up systems.

Most solar electric systems require an interconnection agreement between you and your utility provider. To make going solar as effortless as possible, Ideal Energy will coordinate the net metering connection with your utility provider and complete and necessary paperwork and inspections, so you can begin reaping the benefits of solar energy right away!

Not sure which system is right for you? Please contact us with any questions. We’re here to help!