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Utility “Gets Ready” For More Local Energy In Hawai’i

This post originally appeared on ILSR’s Energy Self-Reliant States blog.

Hawai’an solar advocates are celebrating after the island state’s largest utility, Hawai’ian Electric (HECO) filed a plan with the public utility commission to take a “proactive approach” to adding more distributed solar to their grid system.

Utilities across the country typically use “conservative blanket limits” on the amount of renewable energy allowed on local circuits (the power lines connecting to homes and businesses), generally 15% of peak load.  In most places, solar energy production falls far below these limits.  But in the few places where it’s not, customers wanting to generate their own electricity must pay for a “costly and time-consuming study of the potential impacts on their circuits.”

Such limits have previously created logjams of solar installations awaiting utility action. In 2012, for example, there were as many permits issued for new solar on the island of Oahu alone as in the entire state over the last decade.  In Honolulu, close to half of the building permits filed in recent years are for solar power.

From now on the utility hopes to stay ahead of the torrid pace of solar installations.  It’s a remarkable change of heart.

In 2010, HECO proposed a moratorium on new solar installations on many of the islands, but quickly retracted the proposal in the face of strong local opposition.  As more solar has been added to the grid with few ill effects, the utility has reconsidered.

Last October, HECO raised the limit on the their local circuits to 75 percent of minimum load (which roughly translates to 23% of peak) for certain smaller renewable energy systems.  The proactive approach in the utility filing means that HECO may soon follow California utilities, which raised their limit last year to 100 percent of minimum load, or near 50% of peak demand. (for more on this progress, see this infographic – How Archaic Utility Rules Stall Local Solar).

The changes are important, because Hawai’i is a solar industry bellwether, where the cost to produce solar electricity is already lower than retail grid electricity prices (grid “parity”).  The state’s solar market has already revealed the “beyond cost” barriers to solar, and – now – the potential solutions.  The adjustment by HECO and other island utilities around grid limits to solar removes the next level of solar obstruction.

Ultimately, the change indicates a recognition by the utility of the changing electricity system paradigm.  Namely, consumers are becoming producers, and want the rules to support their interest in self-reliance, energy savings, and local power generation.  A coming surge of cost-effective local solar means utilities must get ready.  HECO may be one of the first utilities to prepare, but it won’t be the last.

 
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Written By

John directs the Democratic Energy program at ILSR and he focuses on energy policy developments that best expand the benefits of local ownership and dispersed generation of renewable energy. His seminal paper, Democratizing the Electricity System, describes how to blast the roadblocks to distributed renewable energy generation, and how such small-scale renewable energy projects are the key to the biggest strides in renewable energy development.   Farrell also authored the landmark report Energy Self-Reliant States, which serves as the definitive energy atlas for the United States, detailing the state-by-state renewable electricity generation potential. Farrell regularly provides discussion and analysis of distributed renewable energy policy on his blog, Energy Self-Reliant States (energyselfreliantstates.org), and articles are regularly syndicated on Grist and Renewable Energy World.   John Farrell can also be found on Twitter @johnffarrell, or at jfarrell@ilsr.org.

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