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Published on September 18th, 2017 | by John Farrell

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Residential Subscribers In Focus As Minnesota Weighs Community Solar Incentives

September 18th, 2017 by  


Originally published at ilsr.org.

In its filing on providing community solar incentives for residential subscribers, the Department outlined a loose framework for the “adder,” designed to encourage community solar developers to pursue projects accessible that target residential subscribers. The agency pitched an incentive worth $0.025 per kilowatt-hour, to be phased out over time.

The residential adder discussion is part of a larger debate over what state regulators can do to ensure community solar is universally accessible. Particularly as these projects catch on with developers in Minnesota and nationwide, sensible policies must ensure equitable distribution of their benefits — from reduced utility bills for subscribers to economic development in the communities they serve.

Earlier this year, ILSR advocated for holistic policies designed specifically to improve access to such projects among low-income people. We also recommended that regulators consider a range of incentives — for projects sited on brownfields, serving low-income communities, and having residential subscribers, among other criteria — to promote equitable development and participation.

This week, after the Minnesota Department of Commerce proposed general guidelines for a residential adder, ILSR submitted feedback to the Commission. These comments are included below, lightly edited for clarity.


ILSR Comments Submitted on Minnesota PUC Docket No. 13-867

A residential adder is appropriate

We support adoption of the Department’s recommendation to include an adder to the VOS bill credit rate for residential subscribers. We appreciate the Department’s analysis that the adder is warranted based on the added cost of administering subscriptions for residential customers (and it supports data we’ve seen — which may have been submitted as trade secret — regarding the marginal cost of serving residential customers).

Existing statute favors a residential adder

As ILSR noted in comments submitted January 13, residential subscriber participation was a pivotal consideration in legislation that shaped community solar programming. It is an essential component of ensuring access to community solar projects across all customer classes.

Researchers in the Minnesota House of Representatives specifically noted in their summary of the statute (216B.1641) that “it allows access to solar energy by renters and property owners lacking sufficient capital to install their own solar systems or whose property may be shaded or otherwise unsuitable for solar installation.”

An adder for residential participants helps cement community solar participation among groups otherwise at risk of being shut out of renewable generation. In our previous comments, ILSR noted roughly 50 percent of households cannot host their own solar, emphasizing the pivotal role community solar projects play in promoting more equitable access to clean energy.

The proposed adder value is reasonable

We support January comments filed by Cooperative Energy Futures which align with the Department recommendation to develop a residential adder worth $0.025/kWh. We further support an adder for low-income participants, noting that there are marginal risks and costs associated with such subscribers.

Further review needed

While we remain open to a gradual step-down for the residential adder (as proposed by the Department), we recommend that any such implementation plan be based on more comprehensive market analysis that examines how community solar develops in Minnesota.

We agree with Cooperative Energy Futures’ earlier comments that any adders adopted by the Commission be applied in a way that does not favor out-of-state developers or introduce uncertainty with regard to financing. We also support Cooperative Energy Futures’ earlier recommendation that the Commission commit to regularly review adders to adjust them as needed over time, based on market dynamics.

Budget, capacity caps unnecessary

We do not believe there is a need for the Commission to impose a cap on capacity or budget for the recommended residential adder. Such a limit would not be in keeping with the intent of the community solar statute, designed to expand access to solar.

Further, the scheduled phase-out of the adder acts as a de facto cap and — like the phase-out of federal tax credits for solar — provides predictability and market certainty that an arbitrary cap would not.

Confusion about the adder assignment

The request for comments on the Department’s recommendations asked for input on what point a project application should be assigned the residential adder. It was our understanding that the adder would be applied to the individual subscriber and not the project as a whole, but the questions open for comment seem to imply otherwise. Without knowing more about the methodology of choosing which projects are “residential” if adders are to be applied to whole projects, it’s difficult to say when the appropriate time would be to apply the adder. We believe the adder is best applied to the subscriber, where residential status can be easily verified.


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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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