Pareto Energy has developed and patented an innovative configuration of off-the-shelf power electronics called GridLink to more than triple microgrid financial returns. GridLink eliminates the disadvantages of interconnecting microgrids with utility-owned electro-mechanical devices by utilizing a non-synchronous, always-islanded approach.
As shown in the graphic above, GridLink utilizes back-to-back AC/DC/AC power conversion technology to safely and affordably integrate on-site generation technologies (both AC and DC sources). Power flows from on-site generation sources through GridLink’s Active Rectifier and is combined on a Common DC Bus. Immediately thereafter, the power is converted back to AC for use on-site or sale upstream to the utility grid and/or wholesale market. The back-end conversion from DC to AC creates a pure power signal, eliminating all power quality issues from on-site generation sources.
Unlike traditional, utility-owned electro-mechanical interconnection platforms that require synchronization with the utility grid, GridLink incorporates a non-synchronous approach that significantly reduces the cost and time required for approval for microgrid interconnections. GridLink’s capability to safely and affordably integrate multiple generation sources allows customers the design flexibility to meet their site’s specific needs. Moreover, the ability to aggregate generation sources behind-the-meter enables upstream sales of real and reactive power services to wholesale energy markets, increasing the return to microgrid owners. Finally, GridLink’s always-islanded approach ensures both seamless integration to the utility grid and increased reliability to ensure continued operations during grid outages.