It has been more than a month since Hurricane Maria swept through Puerto Rico. The majority of this US territory remains without reliable electricity and is facing a crisis of unprecedented proportions. The lack of power in Puerto Rico, as well as the hurricanes that struck Florida and Texas, have turned up the heat on utilities, regulators, and the federal government regarding how best to rebuild power grids for greater resilience to protect against future outages during natural disasters.
While companies such as Tesla proclaim that Puerto Rico provides the perfect opportunity to deploy solar PV plus energy storage microgrids to rebuild regional power supplies, others argue the quickest way for restoration lies with fixing the traditional hub-and-spoke centralized transmission grid. Where does the truth stand? As is often the case, somewhere between these two extremes. Though I personally would invest more heavily into microgrids, I would not restrict them to solar energy because hurricanes can both damage and limit power production. Nonetheless, wind-powered mobile microgrids were part of the immediate response, smart dual-fuel generators should also be vital parts of the microgrid solution mix.
Can Lessons from the Military Rebuild Puerto Rico?
There are some important lessons that Puerto Rico can benefit from if it listens to the US military, a key responder to the crisis in Puerto Rico.
As I noted in a recent blog, the US Department of Defense (DOD) and data centers have been wrestling with how to maintain uptime while scaling back its reliance upon diesel generation. In a new Navigant Research white paper sponsored by Schneider Electric, I argue that innovative business models, such as microgrids as a service, may be the ticket to transforming industries reluctant to embrace distributed energy resources (DER) innovations. Likewise, military bases are following similar pathways forward, eliminating capital costs and financing upgrades through energy efficiency savings. Case in point is the Marine Corps Logistics Base in Albany, Georgia, which is the DOD’s first net zero energy military base.
The military microgrid market was viewed as an early adopter before budget issues helped stall the market. While a uniquely US market in terms of adoption for stationary bases, its effect is global since the DOD has sites scattered across the globe. Forward operating bases and mobile tactical microgrids can operate as standalone systems or interconnect with traditional grids and have been featured in recent conflicts in both Afghanistan and Iraq. A new report from Navigant Research notes that momentum for DOD microgrids is picking up.
Military Technology – Civilian Implications
The DOD has played a remarkably consistent role in commercializing new technologies that provide tremendous social benefits within the larger civilian realm. The Internet, created by the Defense Advanced Research Projects Agency (DARPA) in 1969, is perhaps the most ubiquitous of the DOD’s contributions to consumer markets. Along with accelerating the commercialization of traditional manufactured products such as aircraft, the DOD has also pushed the envelope on IT. These advances have been vital to all smart grid platforms, including microgrids.
Hurricanes and related rain and wind do pose challenges to all forms of power supply, including microgrids. Yet, developing a distributed and diverse portfolio of resources is always the best bet, whether one is talking about the wholesale or retail delivery system (note that Cuba’s reliance on microgrids limits outages compared to its Caribbean neighbors). While the Trump administration favors traditional energy pathways, the DOD has forged new ground in DER. One option for Puerto Rico could be to carve out a lead role for the DOD in rebuilding its power system, showcasing lessons learned from both domestic bases and remote power bolstering national security, while at the same time delivering the humanitarian services so direly needed by the local population.
Tags: Energy Storage, Energy Technologies, Microgrids, Smart Grid, Virtual Power Plants, solar PV
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