Exhibit 10.18

                   AMENDMENT TO LEASE AND GUARANTY AGREEMENTS

         THIS  AMENDMENT  TO LEASE  AGREEMENT is made and entered into as of the
1st day of April,  2000, by and between  Maguire Land  Corporation  ("Lessor" or
"Landlord") and Access Power, Inc. ("Lessee" or "Guarantor").

         IN  CONSIDERATION  of the mutual  promises,  covenants  and  conditions
herein contained,  Lessor and Lessee agree that the Lease Agreement dated August
1, 1997,  between  ("Lease  Agreement")  is hereby  amended as of the first date
written above.

         1.       Item 1 of the Lease  Agreement  is amended to add 1173 sq. ft.
                  to the Premises, as depicted on the attached floor plan.

         2.       Item  2.4.1  of the  Lease  Agreement  is  amended  to add the
                  additional 1173 square feet to the extended option as follows:

                  Months 38 through 61, total in the amount of $118,268.76,  add
                  the  additional  1173  square feet to the  extended  option as
                  follows:

                       Months 38 thru 49 ......................$4,855.04 monthly
                       Months 50 through 61....................$5,000.69 monthly

         3.       Item  2.4.2  of the  Lease  Agreement  is  amended  to add the
                  additional 1173 square feet to the extended option as follows:

                       Months 62 thru 73 ......................$5,150.71 monthly
                       Months 74 thru 85 ......................$5,305.23 monthly
                       Months 86 thru 97.......................$5,464.39 monthly
                       Months 98 thru 109......................$5,628.32 monthly

         4.       Item 3 of the Lease  Agreement  is amended (for months 34 thru
                  37) to include  payment at the rate of $20.16 per square  foot
                  for the  additional 693 square feet of office space and $11.88
                  per square foot for the 480 square feet of new storage  space.
                  Monthly  rent  amount for the total  square  footage of leased
                  space (3,003 sq ft) after occupancy is as follows:

                  Current to date of occupancy.................$3,073.96 monthly
                  Florida State Tax (6%).......................$  184.44 monthly
                           Old Total...........................$3,258.40 monthly

                  Additional space.............................$1,639.67 monthly
                  Florida State Tax (6%).......................$   98.38 monthly
                           New Total...........................$4,996.45 monthly

                  Occupancy  and rental  charges for the  additional  693 square
                  feet will begin on May 1, 2000

                  Occupancy  and rental  charges for the  additional  480 square
                  feet will begin on June 1, 2000

         5.       Item 5.5 of the Lease  Agreement  is amended  to provide  that
                  Lessee's  percentage of Operating  Costs is equal to 28.24% of
                  the total costs of operation.

         6.       Exhibit D, Rent Schedule as attached.

                                                             Initials: ___ & ___


<PAGE>

         Lessee/Guarantor,  by his signature  below,  hereby exercises his First
Extended Option  according to the Lease and as amended herein.  Lessor/Landlord,
by his signature below, accepts the extension.

         IN  CONSIDERATION  of the mutual  promises,  covenants  and  conditions
herein  contained,  Landlord  and  Guarantor  also agree that the  Unconditional
Guaranty  Agreement  dated  July 17,  1997,  between  them is hereby  amended to
reflect the additional  space and increased rents as of the date of occupancy of
said additional space.

         EXCEPT as  specifically  modified  and  amended  herein,  the terms and
conditions of the Lease Agreement and Unconditional Guaranty Agreement remain in
effect as originally specified.

         IN WITNESS WHEREOF,  Lessor/Landlord and  Lessee/Guarantor  have caused
the Amendment to Lease  Agreement  and  Unconditional  Guaranty  Agreement to be
executed as of the day and year first above written.

Witness as to Lessor/Landlord:             LESSOR/LANDLORD
                                           MAGUIRE & ASSOC., INC.

  /s/ Gerald L. Halstead
----------------------------------         By:  /s/ Bruce A. Maguire
                                             ----------------------------------
  /s/ Meredith M. Ridpath                    Bruce A. Maguire, Realtor
----------------------------------           Landlord's Agent


Witness as to Lessee/Guarantor:            LESSEE/GUARANTOR
                                           ACCESS POWER, INC.

  /s/ Meredith M. Ridpath
----------------------------------         By:  /s/ Glenn Smith
                                              ----------------------------------
  /s/ James E. Harris                         Glenn Smith, President
----------------------------------










                                       2

<PAGE>


                                  RENT SCHEDULE


<TABLE>
<CAPTION>
                                                                 ANNUAL         MONTHLY       TERM          PER SQ FOOT
   YEAR          MONTHS               CALENDAR DATES              RENT            RENT        RENT         OFFICE/STORAGE
------------------------------------------------------------------------------------------------------------------------------

CURRENT TERM

<S>           <C>                <C>                            <C>            <C>          <C>              <C>
    3         35 thru 37         05/15/00 thru 08/15/00         $18,854.52     $4,713.63    $ 18,854.52      $20,16/$11.88
------------------------------------------------------------------------------------------------------------------------------

FIRST EXTENDED TERM:

    4         38 thru 49         08/15/00 thru 08/14/01         $58,260.48     $4,855.04

    5         50 thru 61         08/15/01 thru 08/14/02         $60,008.28     $5,000.69    $118,268.76
------------------------------------------------------------------------------------------------------------------------------

SECOND EXTENDED TERM:

    6         62 thru 73         08/15/02 thru 08/14/03         $61,808.52     $5,150.71                     $20.76/$12.23

    7         74 thru 85         08/15/03 thru 08/14/04         $63,662.76     $5,305.23                     $22.69/$13.37

    8         86 thru 97         08/15/04 thru 08/14/05         $65,572.68     $5,464.39                     $23.37/$14.18

    9         98 thru 109        08/15/05 thru 08/14/06         $67,539.84     $5,628.32    $258,587.80      $24.07/$14.60
</TABLE>



                                                             Initials: ___ & ___