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Beneficial Reuse ofLegacy Management Sites and Renewable

Energy InitiativesJohn Elmer, S.M. Stoller Corporation

2010 Long-Term Surveillance and Maintenance ConferenceNovember 16, 2010

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Legacy Management’s (LM) Mission Manage U.S. Department of Energy’s (DOE) post-

closure responsibilities and ensure the future protection of human health and the environment.

LM has control and custody for legacy land, structures, and facilities and is responsible for maintaining them at levels consistent with DOE’s long-term plans.

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LM’s Goals Protect human health and the environment through effective and

efficient long-term surveillance and maintenance Preserve, protect, and make accessible legacy records

and information Support an effective and efficient work force structured to

accomplish DOE missions and assure contractor worker pension and medical benefits

Manage legacy land and assets, emphasizing protective real and personal property reuse and disposition

Improve program effectiveness through sound management

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LM Sites

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Legacy Land and Assets

LM manages  87 sites in 28 states and Puerto Rico 12,968 acres of DOE-owned sites and land

(i.e., permanent radioactive disposal cells) 10,886 acres of non-DOE-owned sites/land with rights to

conduct activities (i.e., groundwater monitoring at former uranium ore–processing sites owned by states, tribes)

33,227 acres of land withdrawn with rights to conduct activities (25,545 for uranium leasing program)

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Renewable Energy Initiatives –

Two Paths Explore ways to implement renewable energy options for legacy sites LM beneficial reuse program

Specific targets for reuse projects include renewable energy, commercial and industrial uses, conservation uses, and agricultural uses

Dispositions, other types of reuse, and number of acres Careful review of existing site for dispositions to reduce DOE’s footprint

and for other types of reuse

Renewable energy initiative through the Environmental Management System (EMS)

Renewable energy to power existing facilities Tuba City, Arizona, solar project Weldon Spring, Missouri, and Fernald, Ohio, demonstration projects

Concerted efforts to identify opportunities in both programs

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Edgemont, South Dakota Beneficial Reuse – Grazing

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Beneficial Reuse-Process to Identify Renewable Energy Projects National Renewable Energy Laboratory (NREL) report

Information about NREL can be found at http://www.nrel.gov/ NREL screened all current and transitioning LM sites for solar- and

wind-energy potential at http://www.nrel.gov/docs/fy08osti/41673.pdf

Wind power Appears feasible at two current LM sites and several future

sites in Wyoming Challenges include lack of infrastructure, site size, lack of regulation

at the state level, and distance to the end users

Solar power Solar photovoltaic (PV) projects most feasible in the western states

such as New Mexico, Colorado, Utah, Arizona, and Wyoming

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Beneficial Reuse – Solar Power Initiative Current administration and LM goals focus on

renewable energy sources LM has few facilities or buildings requiring energy, but

has open land where private systems can be placed to generate power that can be sold

Solar power opportunities are more advanced than other options with decreased cost and increased efficiency

LM is primarily interested in leasing land to another party to construct solar power systems and not making an economic return off leasing the land

Feasibility of large solar PV systems is based on incentives and utilities

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Example of Large-Scale Solar Project – City of Rifle, Colorado, Wastewater Treatment Facility

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Beneficial Reuse – Solar Power Incentives Most states have some form of tax incentives and some have

legislated renewable energy goals New Mexico Renewable Energy Act of 2004 requires

increased use of renewable energy sources through 2020 State also has energy tax credit against personal and

corporate income tax liabilities American Recovery and Reinvestment Act of 2009

stimulus act provides investment tax credit equal to 30 percent of the capital cost (expires in 2010) Loan program administered by DOE

Tax benefits to depreciate cost over 5 years versus 20 years

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Beneficial Reuse – Process to Work with Utilities Some states (Colorado, New Mexico, Arizona, and

California) require utilities to purchase a certain percentage of power from renewable sources

Public Service of New Mexico (PNM) issued a 2008 Request for Proposals

Received bids from firms with solar projects Queue established to evaluate bids No project has been awarded a contract yet PNM reevaluating request for proposals/queue process

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Process to Work with Utilities (continued) Federal Energy Regulatory Commission regulates

energy grid “Study process” developed for projects from 2 MW up

to 20 MW; expedited compared to large projects over 20 MW

Studies required for fast track process include: Feasibility study System impact study Distribution study Facilities study

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Beneficial Reuse – New Mexico Solar Project LM evaluated sites near Grants, New Mexico (Ambrosia Lake,

L-Bar, and Bluewater, New Mexico) Assessed available land and buffer areas outside disposal cells for

onsite or nearby electrical infrastructure Sites screened for

Slope not to exceed 5 percent No arroyos or waterways No potential shading Available access and infrastructure

Conceptual designs yielded potential for 9 MW at Ambrosia Lake, 3 MW at L-Bar, and 20 MW at Bluewater

Bluewater site chosen for further study due to its large amount of open land, large transmission lines, onsite substation, and proximity to a large community

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New Mexico Solar Project

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Bluewater, New Mexico, Site and PV System Former uranium processing and disposal site [Uranium

Mill Tailings Radiation Control Act (UMTRCA) Title II] Tri-State Generation and Transmission Association, Inc.

substation and 13.2 kv transmission lines on site Good site access 800 acres of flat land for 20 MW PV solar system Groundwater is approximately 100 feet below

earth’s surface No other land use

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Bluewater, New Mexico, Site

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Bluewater Site –Challenges to Implementation The utility doesn’t need the power right now Remaining transmission line capacity committed to

other projects The cost will be millions of dollars to upgrade

transmission line to Albuquerque Working through site-use restrictions with regulators

[Nuclear Regulatory Commission (NRC)] Addressing federal real property regulations to

grant a long-term lease

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Beneficial Reuse – Durango, Colorado, Site Solar Project Disposal cell site (UMTRCA Title I) LM approached to consider installation on top of

the disposal cell Smaller site than Bluewater, New Mexico, site Close to city of Durango (1 mile southwest) LM focus on this project due to greater potential

for near-term implementation

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Durango Disposal Site

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Durango Solar Project – Benefits Site is on a hillside facing south Flat disposal cell cover with vegetation and

soil/rock matrix Surrounded by public lands Infrastructure is available onsite Located one-fourth of a mile from the nearest substation Available capacity in adjacent transmission lines Potential for partnering with other entities such as the

local utility cooperative

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Durango Solar Project – Challenges Revised Long-Term Surveillance Plan submitted to

Colorado Department of Public Health and Environment (CDPHE) and NRC to allow panels on top of cover

Maintaining integrity of the disposal cell and associated structures against obstacles Erosion from large storms Maintaining existing vegetation Security fencing versus accommodating wildlife Minimizing penetration of surface with foundations, utilities

Developing lease that protects the federal government yet entices developers

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Durango Solar Project Challenges (continued) Adequately addressing all concerns as suggested in

meetings with NRC, CDPHE, Colorado Division of Wildlife, La Plata County

Develop an Environmental Assessment; work with County, NRC, local stakeholders

Preliminary Final EA is being reviewed with the plan to issue a Final EA in December

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EMS – Renewable Energy Initiatives LM EMS goal is to replace 3.75 percent of its on-site

power consumption with renewable energy sources Inventoried each site that utilizes power; most LM sites

do not have operating facilities Best opportunities are at several large facilities

(Tuba City, Arizona; Fernald, Ohio; Grand Junction, Colorado)

Utility companies typically allow a maximum on-site renewable energy source equal to 125 percent of existing power demand

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Examples of EMS Renewable Energy Initiatives A 51 kw solar PV system built at Tuba City, Arizona, site

to offset purchase of electricity off-grid Solar hot-water heating system at Tuba City to heat

groundwater before treatment (reduced energy consumption 10 percent)

Small PV systems at Rocky Flats, Colorado, to power remote pumping stations and instruments

Demonstration projects at Fernald, Ohio, using PV system to power pump station and lights, and at Weldon Springs, Missouri, to operate a windmill that powers a display

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Tuba City, Arizona Solar Photovoltaic Panels

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Tuba City, Arizona, Solar Hot-Water Heating System