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sis on development of biorefinery technologies using 
enzyme-based processing systems. 
SEC. 920. CONCENTRATING SOLAR POWER STUDY PRO-
GRAM. 
(a) IN GENERAL.—The Secretary shall conduct a 
program of study to evaluate the potential of concen-
trating solar power for hydrogen production, including co-
generation approaches for both hydrogen and electricity. 
Such program shall take advantage of existing facilities 
to the extent possible and shall include—
(1) development of optimized technologies that 
are common to both electricity and hydrogen produc-
tion; 
(2) evaluation of thermochemical cycles for hy-
drogen production at the temperatures attainable 
with concentrating solar power; 
(3) evaluation of materials issues for the 
thermochemical cycles described in paragraph (2); 
(4) system architectures and economics studies; 
and 
(5) coordination with activities in the Advanced 
Reactor Hydrogen Cogeneration Project on high 
temperature materials, thermochemical cycles, and 
economic issues.
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(b) ASSESSMENT.—In carrying out the program 
under this section, the Secretary shall—
(1) assess conflicting guidance on the economic 
potential of concentrating solar power for electricity 
production received from the National Research 
Council report entitled ‘‘Renewable Power Pathways: 
A Review of the U.S. Department of Energy’s Re-
newable Energy Programs’’ in 2000 and subsequent 
Department-funded reviews of that report; and 
(2) provide an assessment of the potential im-
pact of the technology before, or concurrent with, 
submission of the fiscal year 2008 budget. 
(c) REPORT.—Not later than 5 years after the date 
of enactment of this Act, the Secretary shall provide a re-
port to Congress on the economic and technical potential 
for electricity or hydrogen production, with or without co-
generation, with concentrating solar power. 
SEC. 921. MISCELLANEOUS PROJECTS. 
The Secretary may conduct studies for—
(1) ocean energy, including wave energy; and 
(2) the combined use of renewable energy tech-
nologies with one another and with other energy 
technologies, including the combined use of wind 
power and coal gasification technologies.
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SEC. 922. RENEWABLE ENERGY IN PUBLIC BUILDINGS. 
(a) TECHNOLOGY TRANSFER PROGRAM.—The Sec-
retary shall establish a program for the transfer of innova-
tive technologies for solar and other renewable energy 
sources in buildings owned or operated by a State or local 
government, and for the dissemination of information re-
sulting from an assessment of such program to interested 
parties. 
(b) LIMIT ON FEDERAL FUNDING.—The Secretary 
shall provide under this section no more than 40 percent 
of the incremental costs of the solar or other renewable 
energy source project funded. 
(c) REQUIREMENT.—As part of the application for 
awards under this section, the Secretary shall require all 
applicants—
(1) to demonstrate a continuing commitment to 
the use of solar and other renewable energy sources 
in buildings they own or operate; and 
(2) to state how they expect any award to fur-
ther their transition to the significant use of renew-
able energy. 
SEC. 923. UNIVERSITY BIODIESEL PROGRAM. 
(a) IN GENERAL.—The Secretary shall establish a 
program regarding the feasibility of the operation of diesel 
electric power generators, using biodiesel fuels, with rat-
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ings as high as B100 at a university electric generation 
facility. The program shall examine—
(1) heat rates of diesel fuels with large quan-
tities of cellulosic content; 
(2) the reliability of operation of various fuel 
blends; 
(3) performance in cold or freezing weather; 
(4) stability of fuel after extended storage; and 
(5) other criteria, as determined by the Sec-
retary. 
(b) AUTHORIZATION
OF APPROPRIATIONS.—There 
are authorized to be appropriated to the Secretary 
$400,000 to carry out subsection (a). Such funds shall re-
main available until expended. 
Subtitle D—Nuclear Energy 
SEC. 929. ALTERNATIVES TO INDUSTRIAL RADIOACTIVE 
SOURCES. 
(a) STUDY.—The Secretary shall conduct a study and 
provide a report to Congress not later than August 1, 
2006. The study shall—
(1) survey industrial applications of large radio-
active sources, including well-logging sources; 
(2) review current domestic and international 
Department, Department of Defense, Department of
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State, and commercial programs to manage and dis-
pose of radioactive sources; 
(3) discuss disposal options and practices for 
currently deployed or future sources and, if defi-
ciencies are noted in existing disposal options or 
practices for either deployed or future sources, rec-
ommend options to remedy deficiencies; and 
(4) develop a program plan for research and de-
velopment to develop alternatives to large industrial 
sources that reduce safety, environmental, or pro-
liferation risks to either workers using the sources or 
the public. 
(b) PROGRAM.—The Secretary shall establish a re-
search and development program to implement the pro-
gram plan developed under subsection (a)(4). The pro-
gram shall include miniaturized particle accelerators for 
well-logging or other industrial applications and portable 
accelerators for production of short-lived radioactive mate-
rials at an industrial site. 
SEC. 930. GEOLOGICAL ISOLATION OF SPENT FUEL. 
The Secretary shall conduct a study to determine the 
feasibility of deep borehole disposal of spent nuclear fuel 
and high-level radioactive waste. The study shall empha-
size geological, chemical, and hydrological characterization 
of, and design of engineered structures for, deep borehole