To extend the incentives for clean and renewable energy and its more efficient use.

Summary: Renewable Energy and Energy Efficiency Stimulus Act of 2006 - Amends the Internal Revenue Code to extend the time limits applicable to tax credits for: (1) electricity produced from certain renewable resources; (2) clean renewable energy bonds; (3) new energy efficient homes; (4) residential energy efficient property; (5) business solar investment; and (6) biodiesel and alternative fuels.

Extends the time limit for the deduction for energy efficient commercial buildings.

Declares inapplicable to certain qualified electric vehicles and alternative motor vehicles the depreciation limitation pertaining to luxury automobiles.

Instructs the Secretary of Energy to establish a program to provide assistance to states for consultations with respect to weatherization and energy efficiency of residences and small businesses.

SECTION 1. SHORT TITLE.

    This Act shall be cited as the ``Renewable Energy and Energy 
Efficiency Stimulus Act of 2006''.

                     TITLE I--ENERGY TAX INCENTIVES

            Subtitle A--Energy Infrastructure Tax Incentives

SEC. 101. EXTENSION OF CREDIT FOR ELECTRICITY PRODUCED FROM CERTAIN 
              RENEWABLE RESOURCES.

    Section 45(d) of the Internal Revenue Code of 1986 (relating to 
qualified facilities) is amended by striking ``2008'' each place it 
appears and inserting ``2011''.

SEC. 102. EXTENSION AND EXPANSION OF CREDIT TO HOLDERS OF CLEAN 
              RENEWABLE ENERGY BONDS.

    (a) In General.--Section 54(m) of the Internal Revenue Code of 1986 
(relating to termination) is amended by striking ``2007'' and inserting 
``2010''.
    (b) Annual Volume Cap for Bonds Issued During Extension Period.--
Paragraph (1) of section 54(f) of the Internal Revenue Code of 1986 
(relating to limitation on amount of bonds designated) is amended to 
read as follows:
            ``(1) National limitation.--
                    ``(A) Initial national limitation.--With respect to 
                bonds issued after December 31, 2005, and before 
                January 1, 2008, there is a national clean renewable 
                energy bond limitation of $800,000,000.
                    ``(B) Annual national limitation.--With respect to 
                bonds issued after December 31, 2007, and before 
                January 1, 2011, there is a national clean renewable 
                energy bond limitation for each calendar year of 
                $800,000,000.''.
    (c) Effective Date.--The amendments made by this section shall 
apply to bonds issued after the date of the enactment of this Act.

       Subtitle B--Conservation and Energy Efficiency Provisions

SEC. 111. EXTENSION OF ENERGY EFFICIENT COMMERCIAL BUILDINGS DEDUCTION.

    Section 179D(h) of the Internal Revenue Code of 1986 (relating to 
termination) is amended by striking ``2007'' and inserting ``2010''.

SEC. 112. EXTENSION OF NEW ENERGY EFFICIENT HOME CREDIT.

    (a) In General.--Subsection (g) of section 45L of the Internal 
Revenue Code of 1986 (relating to new energy efficient home credit) is 
amended to read as follows:
    ``(g) Termination.--This section shall not apply to--
            ``(1) any qualified new energy efficient home meeting the 
        energy saving requirements of subsection (c)(1) acquired after 
        December 31, 2010, and
            ``(2) any qualified new energy efficient home meeting the 
        energy saving requirements of paragraph (2) or (3) of 
        subsection (c) acquired after December 31, 2007.''.
    (b) Effective Date.--The amendment made by this section shall take 
effect as if included in the amendments made by section 1332 of the 
Energy Policy Act of 2005.

SEC. 113. EXTENSION OF RESIDENTIAL ENERGY EFFICIENT PROPERTY CREDIT.

    Section 25D(g) of the Internal Revenue Code of 1986 (relating to 
termination) is amended by striking ``2007'' and inserting ``2010''.

SEC. 114. EXTENSION OF BUSINESS SOLAR INVESTMENT TAX CREDIT.

    Sections 48(a)(2)(A)(i)(II) and 48(a)(3)(A)(ii) of the Internal 
Revenue Code of 1986 (relating to termination) are each amended by 
striking ``2008'' and inserting ``2011''.

         Subtitle C--Alternative Fuels and Vehicles Incentives

SEC. 121. EXTENSION OF EXCISE TAX PROVISIONS AND INCOME TAX CREDIT FOR 
              BIODIESEL AND ALTERNATIVE FUELS.

    (a) Biodiesel.--Sections 40A(g), 6426(c)(6), and 6427(e)(5)(B) of 
the Internal Revenue Code of 1986 are each amended by striking ``2008'' 
and inserting ``2010''.
    (b) Alternative Fuel.--
            (1) Fuels.--Sections 6426(d)(4) and 6427(e)(5)(C) of the 
        Internal Revenue Code of 1986 are each amended by striking 
        ``September 30, 2009'' and inserting ``December 31, 2010''.
            (2) Refueling property.--Section 30C(g) of such Code is 
        amended by striking ``2009'' and inserting ``2010''.
    (c) Effective Date.--The amendments made by this section shall take 
effect on January 1, 2007.

SEC. 122. EXCEPTION FROM DEPRECIATION LIMITATION FOR CERTAIN 
              ALTERNATIVE AND ELECTRIC PASSENGER AUTOMOBILES.

    (a) In General.--Paragraph (1) of section 280F(a) of the Internal 
Revenue Code of 1986 (relating to limitation) is amended by adding at 
the end the following new subparagraph:
                    ``(D) Special rule for certain alternative motor 
                vehicles and qualified electric vehicles.--Subparagraph 
                (A) shall not apply to any motor vehicle for which a 
                credit is allowable under section 30 or 30B.''.
    (b) Conforming Amendment.--Subparagraph (C) of section 280F(a)(1) 
of the Internal Revenue Code of 1986 is amended by striking clause (ii) 
and by redesignating clause (iii) as clause (ii).
    (c) Effective Date.--The amendments made by this section shall 
apply to property placed in service after the date of the enactment of 
this Act.

                  TITLE II--WEATHERIZATION ASSISTANCE

SEC. 201. PROGRAM.

    (a) Establishment.--The Secretary of Energy shall establish a 
program to provide assistance to States for consultations with respect 
to weatherization and energy efficiency of residences and small 
businesses. Under the program, States shall provide information and 
recommendations for achieving greater energy efficiency, but shall not 
provide equipment or labor to achieve energy efficiency improvements.
    (b) Eligibility.--
            (1) States.--A State shall be eligible for assistance under 
        this section if it receives funding under the Low-Income Home 
        Energy Assistance Act of 1981 (42 U.S.C. 8621 et seq.).
            (2) Recipients.--Residential consultations shall be 
        provided through the program established under this section 
        only with respect to residences for which the household income 
        does not exceed 200 percent of the State median income for 
        households of the same size.
    (c) Definition.--For purposes of this section, the term ``small 
businesses'' means small business concerns within the meaning of 
section 3 of the Small Business Act (15 U.S.C. 632).

SEC. 202. AUTHORIZATION OF APPROPRIATIONS.

    There are authorized to be appropriated to the Secretary of Energy 
for carrying out this title $200,000,000 for each of the fiscal years 
2007 through 2011.