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height="3.9993055555555554in"}

**Number range CHAPTERDENVER WEST OFFICE PARK (DWOP) - LEASED
FACILITIES**

**BUILDING 7**

Year Constructed: 1979

Year Acquired: 1994

Annual Lease Cost: \$44,670

Other Annual Costs:

none

Lease Expiration: 11/08/2008

Leased Space: 4,467 sf

Staff: 6

**BUILDING 15 \[NREL\]**

Year Constructed: 1979

Year Acquired: 1991

Annual Lease Cost: \$404,230

Other Annual Costs: \$2,899

Lease Expiration Date: 11/08/2008

Leased Space: 29,100 sf

Staff: 73

**BUILDING 15 \[DOE\]**

Year Constructed: 1979

Year Acquired: 2004

Annual Lease Cost: \$1,240,912

Other Annual Costs:

none

Lease Expiration: 03/31/2009

Leased Space: 49,849 sf

Staff: 193

**BUILDING 16**

Year Constructed: 1979

Year Acquired: 1994

Annual Lease Cost: \$1,486,129

Other Annual Costs: \$120,962

Lease Expiration: 11/08/2008

Leased Space: 85,906 sf

Staff: 204

**BUILDING 17**

Year Constructed: 1979

Year Acquired: 1994

Annual Lease Cost: \$1,436,911

Other Annual Costs: \$156,908

Lease Expiration: 11/08/2008

Leased Space: 87,774 sf

Staff: 225

NREL currently leases Buildings 16, 17, two floors of Building 15 and
part of one floor of Building 7. Buildings 7, 15 and 17 are typical
office environments. Building 16 is mainly office and support space for
research staff, and partially utilized as a laboratory environment.
Buildings 15, 16 and 17 are arranged in a triangle with a park-like
amenity zone in the center. Building 7 is located across the street from
Building 15.

DOE's Golden Field Office leases, through GSA, two full floors and
partial space on the third floor of Building 15.

Ancillary spaces under the roof eaves of Building 15 contain the main
NREL telephone switch with back-up uninterruptible power supplies (UPS)
and a back-up generator.

Building 16 currently houses wet and dry chemistry laboratories and
associated administrative support personnel office space.

Building 17 is a typical office building containing NREL administrative
staff and NREL and MRI management personnel.

**Note that all NREL leases in the Denver West Office complex expire on
November 8, 2008.**

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height="4.139583333333333in"}

**RENEWABLE FUELS AND LUBRICANTS RESEARCH LABORATORY**

Year Constructed: 1988

Year Acquired: 2002

Annual Lease Cost: \$33,865

Other Annual Costs: \$42,387

Lease Expiration: 07/04/2007

Space: 4,576 sf

Full Time Staff: 4

NREL\'s Renewable Fuels and Lubricants (ReFUEL) Research Laboratory is a
test facility for advanced fuels in heavy-duty engines and vehicles, as
well as advanced heavy hybrid vehicles. The lab houses the following
specialized testing and measurement equipment:

-   Heavy-duty chassis dynamometer for testing advanced trucks and buses
    with simulation capability from 8,000 - 80,000 pounds;

-   Heavy-duty engine transient test cell (up to 400 hp) for fuels
    research and development; and

-   Emissions measurement capability sensitive enough to be compliant
    with Federal certification procedures required in 2007.

The U.S. Department of Energy's Office of Energy Efficiency and
Renewable Energy (EERE) fund NREL's ReFUEL Laboratory. This lab supports
EERE's FreedomCAR & Vehicle Technologies, Hydrogen, Fuel Cells &
Infrastructure Technologies, Weatherization & Intergovernmental, and
Biomass programs. The ReFUEL Lab is part of Center for Transportation
Technologies and Systems (CTTS) Fuels Performance Group.

The research and development programs in the ReFUEL facility strive to
increase the use of renewable diesel by removing barriers to a wider use
of nonpetroleum based fuels. As use of nonpetroleum based renewable
diesel fuels, such as biodiesel and synthetic diesel derived from
biomass, increases, our dependence on imported petroleum reduces,
therefore enhancing our national energy security. The investment made by
DOE through NREL in the ReFUEL facility and programs, allows the lab to
partner with the research community for testing advanced fuels,
prototype engines, and hybrid powertrains in preparation for the next
ultra-clean generation of heavy-duty vehicle technologies.

Specific projects within this group include Advanced Petroleum Based
Fuels, Gaseous Fuels, New Fuels Technology Impacts, and Nonpetroleum
Based Fuels.

**Advanced Petroleum Based Fuels**

The Advanced Petroleum Based Fuels (APBF) facility includes research to
determine how advanced fuels and blending components can enable or
expand the operating range of high efficiency, low emissions combustion
strategies. The APBF team investigates how new fuels and lubricants will
enable transportation systems to be more efficient and meet stringent
emission standards.

Determining how fuel and lubricant properties affect the performance of
emission control devices is also of critical importance. The APBF Diesel
Emission Control (DEC) project leverages a strong partnership with
industry to determine how fuel properties affect emissions from diesel
engines equipped with state of the art control technologies.

Using a systems approach, the research aims to improve vehicle
efficiency, thereby decreasing our nation\'s dependence on imported
petroleum products.

**Gaseous Fuels**

As the name implies, gaseous fuel vehicles are vehicles powered by
gaseous fuels instead of the conventional liquid fuels -- gasoline and
diesel. The Natural Gas Vehicle Technology Forum focuses on vehicles
fueled with natural gas, hydrogen, and hydrogen-natural gas blends. Use
of these fuels increases energy security, paves the way for fuel cell
vehicles, and improves public health and the environment.

**Increasing Energy Security**

The United States imports more than half of its petroleum, much of it
used to fuel vehicles in the form of gasoline and diesel. The demand for
petroleum imports is increasing. Since much of the worldwide petroleum
reserves are located in politically volatile countries, the United
States is vulnerable to disruptions in supply.

Natural gas vehicles are an immediate solution to the nation\'s energy
security needs. Most of the natural gas consumed in the United States is
produced domestically and by politically stable countries, additionally
an extensive natural gas infrastructure exists. Using natural gas
vehicles instead of conventionally fueled vehicles reduces U.S.
dependence on foreign oil, thereby increasing energy security.
Furthermore, hydrogen-fueled vehicles offer the promise of a
petroleum-free transportation network in the future.

**Paving the Way for Fuel Cell Vehicles**

Fuel cell vehicles powered by hydrogen are the future of transportation.
Natural gas vehicle and infrastructure development will facilitate the
transition to this technology. With the highest hydrogen-to-carbon ratio
of any hydrocarbon, natural gas is an efficient source of hydrogen---in
fact, it is the number one source of commercial hydrogen used in the
United States. The vast U.S. network of natural gas transmission lines
offers the potential for convenient transportation of natural gas to
future refueling stations that reform hydrogen from the gas.

Because natural gas and hydrogen are both gaseous fuels, lessons learned
from developing natural gas technologies may aid the transition away
from conventional liquid fuels to gaseous hydrogen fuel. Issues shared
by natural gas and hydrogen include:

-   Fuel storage;

-   Fueling;

-   Station siting;

-   Training;

-   Facilities; and

-   Public acceptability.

Vehicles fueled with hydrogen-natural gas blends (HCNG) are a first step
toward a hydrogen-based transportation network. Fueling vehicles with
HCNG can help build demand for a hydrogen infrastructure while providing
enhanced emission reductions.

**New Fuels Technology Impacts**

The New Fuels Technology Impacts project coordinates research with
automobile and engine manufacturers, the petroleum industry, the
scientific community, various environmental agencies, and the engine and
fuel research community. Specifically the project focuses on
environmental and health effects by identifying the atmospheric impacts
of operating vehicles with conventional and alternative transportation
fuels. At NREL, we analyze ambient air samples and exhaust emission data
to determine the effects of pollutants on air quality, visibility, and
human health.

**Nonpetroleum Based Fuels**

The Nonpetroleum Based Fuels (NPBF) activity works to overcome the
technical barriers of expanding markets for new liquid fuels, such as
biodiesel and Fischer-Tropsch diesel, and gaseous fuels, including
natural gas and hydrogen. Additionally, longer-term research and
development of fuels that enable highly efficient and clean engines to
employ advanced combustion concepts continues.

Nonpetroleum based fuels increase U.S. energy security by displacing
petroleum and enabling high efficiency and low emission engines. The
NPBF work is specifically directed to meet DOE\'s FreedomCAR Program and
the 21st Century Truck Partnership goals of increasing vehicle
efficiency and displacing petroleum.

**Facility Issues and Challenges**

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height="5.001388888888889in"}

**JOYCE STREET FACILITY**

Year Constructed: 1978

Year Acquired: 1992

Annual Lease Cost: \$228,664

Other Annual Costs: \$43,970

Lease Expiration: 01/31/2008

Leased Space: 56,000 sf

Full Time Staff: 0

The Joyce Street Facility is a metal-skinned warehouse facility used as
storage space for unused programmatic laboratory equipment, excessed
equipment, and modular furniture.