FERC and microhydro licensing

Federal energy regulators have ruled that a micro-hydroelectric project proposed in New York cannot be constructed or operated without a license.

The proposed Henson Micro Hydroelectric Project would be located on the West Branch of Onondaga Creek, near Onondaga, New York.  It would include an existing 14-foot-high concrete dam, plus new construction including a penstock, a powerhouse, and a 10 kilowatt generating unit.  The dam was rebuilt in 2002, and had previously been used to power a grist mill.  The project developer, an individual, proposed to use the project power to provide electricity to his home and barn.
 
In his declaration of intention, the developer described himself and his approach to project development and compliance:

I would like to point out that I am not a corporation, or a rich man just a simple middle class Joe. I am an hourly employee at AT&T. Although blessed beyond what I actually deserve, I do not have a bunch of money that I could spend. In fact I am using funds recently obtained from a loss of use settlement from the NYS Workers Compensation Board to fund this. I am trying to do the right thing for the environment and save some money on my power bill. I am hoping that we can work this out to everyone’s satisfaction based upon the material and information that I currently have available. Of course, if additional information is required by you folks I will do everything to comply.

Identifying what approvals are necessary is a core step in developing any project.  Under section 23(b)(1) of the Federal Power Act, a non-federal hydroelectric project must be licensed by the Federal Energy Regulatory Commission (unless it has a still-valid pre-1920 federal permit) if it:

(a) is located on a navigable water of the United States;
(b) occupies lands or reservations of the United States;
(c) utilizes surplus water or waterpower from a government dam; or
(d) is located on a stream over which Congress has Commerce clause jurisdiction, is constructed or modified on or after August 26, 1935, and affects the interests of interstate or foreign commerce.

To reduce uncertainty over whether a project will require licensing, a developer may file a Declaration of Intention with the FERC describing the project.  Following public notice and an opportunity for protests, comments, and motions to intervene, FERC will rule on the jurisdictional questions raised by the declaration.

In the Henson project's case, the developer filed a Declaration of Intention on December 18, 2015.  That declaration was supplemented; after the second supplement, FERC issued its public notice of the declaration.  No protests, comments, or motions to intervene were filed.

On May 10, FERC issued its ruling on the declaration, finding that licensing is required.  FERC easily found that the project would not occupy any public lands or reservations of the United States or use surplus water or waterpower from a Federal government dam.  It found "insufficient evidence" to determine whether the West Branch of the Onondaga Creek is navigable.

However, FERC found that the West Branch of Onondaga Creek is a headwater or tributary of the Oswego River, a navigable water of the United States.  As a result, FERC concluded the project would be located on a "Commerce Clause stream."  FERC noted the project would be constructed after 1935.

FERC also concluded that the project would affect interstate commerce through its connection to the interstate grid, relying on precedent that "small hydroelectric projects that are connected to the interstate grid affect interstate commerce by displacing power from the grid, and the cumulative effect of the national class of these small projects is significant."  Thus even though the Hanson project's developer proposed using project power for the onsite home and barn, the fact that those buildings were grid-tied drove FERC to conclude that licensing was required. 

On this reasoning, FERC concluded that construction, operation, and maintenance would require a license.  As an alternative, FERC suggested the developer consider applying for an exemption from licensing as a small hydroelectric power project.


By contrast, another recent FERC decision concluded that a micro-hydro system proposed in Massachusetts did not require licensing, because (among other reasons) neither the project nor the structures it would serve would be grid-tied.  Thus whether or not the project and the facilities it serves are grid-tied or off-grid can be an important factor in whether a FERC hydropower license is required.

FERC rules off-grid micro-hydro needs no license

Federal hydropower regulators have granted reconsideration of a 2015 order finding licensing required for an off-grid micro-hydropower project proposed in Massachusetts.  Based on newly submitted evidence that the proposed project would not be connected to an interstate grid, the order granting reconsideration finds that Section 23(b)(1) of the Federal Power Act does not require licensing of the proposed Egnaczak Net Zero Hydro Project.

The case involves a project proposed by Kenneth and Susan Egnaczak, to be located at an existing water-powered mill complex on the Hoosic River in Cheshire, Massachusetts.  The so-called "Egnaczak Net Zero Hydro Project" would have a total generating capacity of 10.7 kilowatts.  The power would be used at a home and workshop proposed for construction along the river.

Under Section 23(b)(1) of the Federal Power Act, an entity proposing a hydropower project must generally file with the Federal Energy Regulatory Commission either a hydropower license application, or a Declaration of Intention to determine if the proposed project requires a license.  The Egnaczaks filed a Declaration of Intention for the project in February 2015.  On September 11, 2015, Commission staff issued an order finding that the Federal Power Act requires a license to be issued for the project's construction, maintenance, and operation.

Section 23(b)(1) of the Federal Power Act requires a non-federal hydroelectric project to be licensed if it falls into any of four categories: (1) is located on “navigable waters of the United States;” (2) occupies lands or reservations of the United States; (3) uses surplus water or water power from a federal dam; or (4) is located on a non-navigable stream which is subject to the authority of Congress under the Commerce Clause, affects the interests of interstate or foreign commerce, and is constructed or enlarged after August 26, 1935.

In its September 2015 order on the Egnaczak project, Commission staff analyzed the facts as applied to these facts.  On category 1, staff found that there is insufficient evidence to determine whether the Hoosic River is navigable at the project site.  Staff readily dispensed with categories 2 and 3, finding that the project would neither occupy any public lands or reservations of the United States nor use surplus water or waterpower from a Federal government dam.

In September, staff found that the project fell into the fourth category.  In the order, staff noted that it would be located on a non-navigable Commerce Clause stream, would be constructed after 1935, and would affect the interests of interstate commerce because the project would offset both electrical and heating needs for the applicants’ home and workshop that would have been otherwise supplied by the interstate grid.  The order cited judicial precedent, noting, "It is well settled that small hydroelectric projects that are connected to the interstate grid affect interstate commerce by displacing power from the grid, and the cumulative effect of the national class of these small projects is significant for purposes of FPA section 23(b)(1)." Staff therefore determined that the project requires licensing under FPA section 23(b)(1).

But on January 6, 2016, the applicants filed a request for reconsideration and additional evidence in support of their argument that the project does not require licensing.  This evidence focused on the fact that the project would not be connected to the interstate grid and thus would not affect interstate commerce.  As later described by the Commission:

They state that, because neither their home nor workshop has been constructed, they have no existing grid connection. Further, they explain that the project alone will power their home and workshop. The applicants state that the project would produce hydro-mechanical power using a waterwheel, Archimedes Screw, or turbine. The mechanical power would be connected to the hydro generator units to produce electricity or to power rotating equipment, such as a sawmill. In addition, the applicants state that they will use backup power from a fossil fuel electric generator and storage batteries, which would be charged by the hydro generators or the fossil fuel electric generator.

In a March 24, 2016 order, the Commission staff found that the applicants had demonstrated that the Net Zero Project would not be connected to an interstate grid.  That order finds that the micro-hydro project would not displace power that would otherwise be supplied by the grid and thus would not affect interstate commerce.  As a result, it concludes that "section 23(b)(1) of the FPA does not require licensing of the proposed Net Zero Project."

The March 24 order does include a warning: "if the project or the applicants’ unconstructed home or workshop are connected to the interstate grid in the future, section 23(b)(1) of the FPA would require licensing and the Commission could require the applicants to apply for a license under section 4(g) of the FPA."

Thus in at least this one case, the off-grid nature of the micro-hydro project was a critical factor in the order finding that Section 23(b)(1) of the Federal Power Act does not require licensing of the proposed Egnaczak Net Zero Hydro Project.  The key to the revised finding that the project would have no effect on interstate commerce appears to be the fact that power would be consumed in buildings not yet built, with no existing grid tie.

FERC authorizes mine drainage microhydro

The Federal Energy Regulatory Commission has issued a hydropower license to a project whose turbines generate electricity from acid mine drainage. The micro-hydropower license issued to the Antrim Treatment Trust illustrates this unusual approach to the twin challenges of mine remediation and renewable energy.

The power of falling water, in the White Mountain National Forest in New Hampshire.

In the 1980s, Antrim Mining, Inc. operated a surface bituminous coal mine in Pennsylvania.  When water draining through the mine and into streams and rivers was found to exceed pollution limits, the Commonwealth of Pennsylvania charged the company with violations of mining and reclamation law.  The charges led to a series of settlements through which Antrim agreed to improved water treatment facilities, including an off-the-grid hydroelectric facility.  This micro-hydro plant would be powered by treated effluent flowing downhill out of lagoons.  Antrim created the Antrim Treatment Trust to manage treatment of the mine water in 1991, then went out of business.

In an attempt to reduce the cost of treating the site's severe acid mine drainage, the Babb Creek Watershed Association identified micro-hydropower as an option for the site.  In 2008, the association received an Energy Harvest Grant from the Pennsylvania Department of Environmental Protection.  This $428,710 award was designed to support the installation of two hydroelectric turbines on the treatment plant's discharge, which was completed in 2012.

While the Federal Power Act requires most hydropower projects to secure a license from the Federal Energy Regulatory Commission, some off-grid hydropower projects that do not use the waters of the United States do not require licensure.  In 2010, the Antrim Treatment Trust filed a Declaration of
Intent for a 40-kilowatt grid-connected project, but quickly revised its project to be off-grid after the Commission issued an order finding that a license was required for the grid-connected project.  Once the project was off-grid, the Commission ruled that no license was required.

The Antrim treatment plant seems to have then operated one turbine, but left the second turbine non-operational. A 2012 article in the Williamsport Sun-Gazette suggested that with both turbines running and selling power into the electricity grid, the treatment plant could cut $12,000 in annual power costs and make $10,000 per year in new revenue.  But this could require a FERC license, because the project would become connected to the utility grid.

The Trust appears to have decided that these economics were worth pursuing, because in 2013 it filed an application for a project license for a 40-kilowatt project.  In the application, Antrim Trust proposed to bring a second identical turbine (currently in place but non-operational) online by installing additional indoor wiring with appurtenances within the existing powerhouse and treatment plant, and operate both turbines as a grid-connected project using the treated and/or untreated water.

As licensed, the Commission estimates the annual cost to develop and maintain the proposed 40-kW project is $9,356 or $37.42/megawatt-hour (MWh).  The project will generate an estimated average of 250 MWh of energy annually.  Based on Commission staff’s view of the alternative cost of power ($56.93/MWh), the total value of the project’s power is $14,233 in 2013 dollars.  To determine whether the proposed project is currently economically beneficial, staff subtracts the project’s cost from the value of the project’s power. Therefore, in the first year of operation, the project is expected to cost $4,877 or $19.51/MWh less than the likely alternative cost of power - demonstrating economic benefit.

Micro-hydropower projects can make economic sense in some mine drainage situations and other places where water treatment is required and a suitable vertical drop or pressure is available.  In Antrim's case, the project's success can partially be explained by the existence and purpose of the Trust, as well as the DEP grant to support project construction.  If treated and untreated mine drainage can be used to generate hydroelectricity, what other unusual sources of power will arise?