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Published on April 9th, 2018 | by John Farrell

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States Agree: Third-Party Ownership Enables Distributed Solar, But What’s Next?

April 9th, 2018 by  


Originally published at ilsr.org.

Much has changed in the national solar market since an earlier analysis of the market and policy landscape in 2014. The solar market as a whole has continued to grow, and small-scale systems are proving to be better deals for communities than larger ones. So, compared with previous rankings of solar capacity, do states that allow third-party leases and power purchase agreements still dominate?

The answer is yes, especially for distributed solar capacity.

Today, a majority of states, that is 26 states plus Washington, D.C., have now adopted policies that increase access to rooftop solar. Policies allowing an individual or business to have a third party-owned solar panel installed on their property, which they either lease from the provider or from which they purchase power (instead of from a utility) through defined agreement terms, have become more common.

These third-party ownership models remove traditional, upfront barriers such as installation or maintenance costs that prevent wider adoption of solar by those who cannot afford direct ownership or who find available tax credits and utility rebates out of reach or too complex to navigate.

In recent years, states that haven’t made third-party ownership possible have lagged significantly in distributed solar deployment.

The following table shows the top 10 states in distributed solar per capita in 2017.


What’s clear is that third-party ownership policy continues to matter — every state in the top 10 in rooftop and small-scale solar still allows for third-party ownership.

The trend doesn’t stop there. The “top 25” states make up a notable 99.6% of the reported capacity in the country, all boasting capacity greater than the nationwide median of 0.81 megawatts per million persons.

Unfortunately, with the top contenders and majority of distributed solar capacity concentrated predominantly in the Northeast and Southwest, as illustrated by the map below, states in the rest of the country — mostly those that don’t allow third-party ownership — have a long way to go to catch up.

top solar states 3rd party update

Third-Party Rules Key to Market Development, Less for Maximizing Local Value

Even with gains in solar capacity from policies enabling power purchase or lease agreements, simplifying access to solar for the consumer, third-party ownership models can also come at a cost over the lifetime of an array when compared to direct ownership.

In addition, because a few centralized providers still dominate the solar market, dollars spent on lease agreements or power purchased from third party-owned solar arrays continue to leave the local economies where solar technology is installed.

With this in mind, states that have not yet enabled solar power purchase agreement markets could instead choose to pursue different strategies to grow their solar capacity. They could, for example, make it easier for direct loan financing, drawing inspiration from the success of the Connecticut Green Bank, or invest in cooperative ownership models, such as Yampa Valley Electric Association’s Community Solar Garden in Colorado.

States have the opportunity to create policies and new models of solar financing that keep investments local and are more inclusive of those traditionally left out of the conversation, including low income communities. Doing so will continue to grow both capacity and community power in the distributed solar market nationwide and can give states a competitive economic edge.

For timely updates, follow John Farrell or Marie Donahue on Twitter or get the Energy Democracy weekly update.

Photo credit: 1010 Climate Action via Flickr (CC 2.0).


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About the Author

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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