Renewable Energy World | By: Mahesh Bhave | October 04, 2017:

Puerto Rico presents a near perfect opportunity to rebuild the electricity infrastructure from scratch in accord with technologies of the present — solar panels, batteries, wind turbines, and perhaps small generators — optimally combined in steps of 250 kW and up to 5 MW.

Such a microgrid solution can be deployed community by community, neighborhood by neighborhood, shopping mall by shopping mall, office complex by office complex…and then replicated across the island.

Later, the individual microgrids can be linked to each other for backup, redundancy, resilience, and superior economics for the overall system. The resulting topology of a federation of microgrids will be more resilient to future storms, more reliable, and will be consistent with the trends in Electricity 2.0.

The buildout of microgrids, optimal though it is, may take a little time. Here is what may be done immediately.

In a warehouse, assemble solar panels, of say, 500 W capacity, pair them with up to 3 kWh Li-ion batteries, include an induction or resistive hob for cooking plus a multi-port USB plug, box them, and deliver them to all families who need it. Total cost per set up should be around $1,200.

Self-installation, IKEA-like, is easy. Home cooking can begin immediately, and basic lighting, phone and laptop charging, even fans and TV will be supported. The battery drains with daily use, and is recharged with the sun — no grid necessary.

 

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