Are Micro-Grids the future of electrical grids?

Micro-grids are similar to the existing electrical grid but with better redundancy. A micro-grid can be a simple stand-alone or stand-by energy system with its own fuel source such as a solar PV system with a battery bank. A micro-grid can also be a group of smaller systems that can function like stand-alone or stand-by systems but also interconnect and interact with a central controller. The central controller often has a larger energy system with energy storage to provide better resiliency for the group of smaller systems that are interconnected to it. This central controller functions as a small utility grid. In addition to being a micro-grid, it can interconnect with a standard large scale utility grid.

There are all sorts of uses for micro-grids. Military bases are building them for the purpose of national security. Industries that suffer great loss due to an electrical grid failure will benefit by having a micro-grid and many are installing them. Emergency fuel generators have been used for short term backup, but they are insufficient for long-term because of their limited capacity and escalating cost. AI is the fastest growing industry in the world and they are turning to micro-grids with solar as a primary source for speed of acquisition and cost efficiency.

With cooperation from electrical utilities, these micro-grids can relieve the stress on aging high-voltage electrical lines. Solar energy’s pathway for rapid growth are micro-grids. I think that answers the question, (Are Micro-Grids the future of electrical grids?) and the answer is yes.

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Kelly Provence
Solairgen School of Solar Technology
IREC Certified Master PV Trainer
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