Exhibit E.1




Access, Offloading and Storage Specifications 







Site Access Roads:

1.

On-site Access Roads shall be 16 feet wide with additional 3-foot compacted shoulders on each side (for a total width including the shoulders of 22 feet) and  shall have a minimum inside turning radius of 130 feet. 

2.

Compaction should be adequate for a 15 metric ton per axel load, with a maximum 2 feet 3 inch deviation in any 98-foot span.

3.

Access Roads shall be graded so as to self drain.

4.

To accommodate long loads, intersections of new Access Roads and existing highways shall be modified by construction of temporary gravel Access Roads with a minimum inside turning radius at the access of 150 feet and suitable culverts.

5.

Any change of slope on a vertical curve shall not exceed 1% every 50 feet.




Storage Specifications:




See attached Nacelle Transport Instruction and Freewheeling Instruction.  The Nacelle Transport Instruction shall be applicable to Buyer only following the earlier of (i) transfer of title of the Turbine Equipment pursuant to Section 8.1 of the Agreement and (ii) any delivery of the Turbine Equipment to an Alternate Delivery Location.






























  MG&E Turbine Supply Agreement, Exhibit E.2

  Exhibit E.2

  Fiber Cable Handling Instructions




  Class 1

  Item no. 951471.R0

  2003-12-10

  Fiber Cable Handling

  and Installation

  VestasOnlineTM

  WWW.VESTAS.COM

  Vestas Wind Systems A/S

  Smed Soerensens Vej 5

  DK-6950 Ringkoebing

  SF# 1091496

  

      

  

  Page 1 of 7

  Table of Contents

  Table of Contents ..............................................................................1

  Fiber cable handling and installation requirements ......................2

  1.

  Installation practices ........................................................................2

  2.

  Labelling ..........................................................................................2

  3.

  Optical fiber cable types ..................................................................3

  4.

  Optical loss in fiber components .....................................................3

  5.

  Connectors ......................................................................................3

  6.

  Inspection and testing .....................................................................4

  7.

  Calculating budget and fiber distances  ...........................................4

  8.

  Definitions .......................................................................................6

  

      

  

          Page 2 of 7

  Fiber cable handling and installation requirements

  1. Installation practices

  Instructions in the data sheet from the producer of the cable should always be

  followed. The data sheet informs you about

  minimum bending radius, tensile

  strength and temperature conditions, etc.

  Buried cables must be put in cable conduits. To ease repair or replacement in case

  of a breakdown it is recommended to pull the cables into tubes. It is a

  requirement

  that fiber cables must always be

  at least 10 meters

  longer than the

  actual distance between cable termination points. The reason for this excessive

  length is that in case of a break, you will be able to pull some of the surplus fiber

  out to the place where the fault occurred. This results in only having to make one

  splice on the cable instead of two (especially convenient if tubes are used). In the

  wind turbines, the excessive length is also required to ensure that the fiber cable

  can be routed in a safe and correct manner from the bottom of the turbines to the

  turbine controller cabinet, and to ensure that there is enough cable for splicing

  and mounting of connectors.

  The following is to be considered when selecting the fiber cable type:

  - What type of fiber is needed (Single-Mode/Multi-Mode, depending on

  distance)?

  - How many fibers are needed in each cable section?

  - Indoor cable: demands regarding fire, smoke emission, halogen free cables, etc.?

  - O

  utdoor cable:  is moisture and rodent protection needed (glass or metal

  protection – metal protection is only recommended if required by local

  demands); will overhead cables be used (high tension, UV resistant, etc.)?

  -

  Loose buffer

  cable types

  must

  be used for outdoor purposes and tight-buffered

  cable may be used for indoor purposes (patch cables).

  In case of underground splicing, you must use closures that are environmentally

  sealed and are approved for underground use.

  2. Labelling

  All installed cables shall be labelled at both ends with an appropriate labelling

  system. Label lettering shall be clearly legible black lettering on a white or

  yellow background. In all practical instances, labels shall be oriented such that

  the label can be read without moving the cable to which the label is affixed.

  Labelling shall be as follows:

  ---

  “WT1 – WT2” --------------------------/~/------------------------“WT1-WT2”----

  The text indicates “to – from” on each end (the ‘from’ indicates where the fiber

  comes from, and ‘to’ indicates where the fiber shall go to. The ‘to’ part is always

  placed at the end of the fiber.

  [_______]

  Item no. 951471.R0

  Class: I

  Date: 2003-12-10

  SF# 1091496

  

      

  

                   

  7

  3.  Optical fiber cable

  The accepted fiber cable types for use in Vestas communication systems are

  types

  listed below. All fiber equipment (switches, converters etc.) used by Vestas is

  operating at 1300 nm - except long-haul equipment that operates at 1550 nm.

  Type

  Core

  Switch

  Min. Bandwidth (MM)

  Max.

  of

  Cladding

  Max. Attentuation

  power

  2)

  Max. Dispersion (SM)

  length

  1)

  cable

  diameter

  budget

  μ

  Multi-Mode

  3)

  50/125

  m

  1300nm:

  1 dB/km

  800 MHz*km

  8 dB

  5,000 m

  μ

  62.5/125

  m

  1300nm:

  1 dB/km

  500 MHz*km

  11 dB

  4,000 m

  μ

  Single-Mode

  9

  /125

  m

  1300 nm:

  0.4 dB/km

  3.5 ps/nm*km

  16 dB

  32,500 m

  1550 nm: 0.25 dB/km

  19 ps/nm*km

  29 dB

  86,600 m

  1)

  For 100 Mbit/s switch equipment. See data sheet for 1 Gbit/s equipment.

  2)

  Theoretical max. length of cable without any splicing.

  3)

  50/125 m or 62.5/125  m Multi-Mode cable may be used, 50/125  m is recommended.

  μ

  μ

  μ

  4.  Optical loss in fiber

  Each splicing, connector or patching in the fiber system introduces a certain

  components

  amount of loss. The maximum allowable loss is as follows.

  Loss in:

  Multi-Mode

  Single-Mode

  Splicing

  0.

  1

  dB

  0.

  1 dB

  0.

  4 dB

  0

  .4 dB

  [_______]

  Connector

  4)

  4)

  Loss is for each connector (a patch is 2 connectors, a switch/cable connection is also 2 connectors)

  Fiber optic installations depend on the cleaning of the connectors, which means

  that every time a connector is taken out of its place, it has to be cleaned before

  being put back in place again. This operation is done with Isopropyl alcohol and

  special lens-cleaning tissues. It is also necessary always to mount the dust caps

  on adapters and connectors when not in use.

  5. Connectors

  The type of connectors to be mounted on fibers must be agreed upon in each

  specific project. Connectors of type

  SC

  , push-pull connectors, are recommended

  in EIA/TIA standards and are

  preferred

  by Vestas. The normal line of interface

  between cable contractor (if not Vestas) and Vestas is the Patch box connector

  adapters in the Patch box delivered from Vestas. Connectors may come with

  different polishing techniques, Physical Contact (PC), Ultra Physical Contact

  (UPC) and Angled Physical Contact (APC).  The type used by Vestas shall be of

  Physical Contact (PC) type, also sometimes referred to as SC/PC for the SC

  connector type.

  

  

                   

  7

  6.

  Inspection and

  When the installation and the termination of the fiber is completed, all the fibers

  testing

  must be measured at two wavelengths:

  - Multi-Mode at 850/1300 nm,

  - S

  ingle-Mode at 1310/1550 nm

  These measurements are always taken point-to-point. All fibers must be tested

  individually with following measurement methods (normally both methods are

  required by Vestas):

  -

  Power-through test (attenuation)

  -

  is done with an Optical Loss Test Set. This

  is an end-to-end test with an optical source at one end and a power meter at

  other end. This test method is used to measure every single stretch of fiber

  cable. Measurements must be taken in both directions and measurements must

  be taken at two wavelengths.

  -

  OTDR bi-directional verify

  - measured with an OTDR measurement

  instrument. This test method is used for measurement on cables with one or

  more splicings to verify the quality of the splicing. It is also useful to verify that

  cable bends are not to tight etc. Measurements must be taken in both directions

  and measurements must be taken at two wavelengths.

  NOTE:

  All cable connection descriptions, attenuation measurements and OTDR reports

  have to be delivered to Vestas and the customer as documentation on the fiber

  installation. As minimum this report includes for each fiber: end-to-end distance,

  total loss and measurement report. The OTDR report must contain an attenuation

  curve (OTDR trace) and must include additionally information on attenuations

  in each peak point (splicing, patch-connection, bend, etc.).  Reports may be

  delivered in printed form or electronically (MS Word, MS Excel or PDF format

  preferred).

  7.  Calculating budget

  The ideal method for determining the optical loss is to actually measure the loss

  and fiber distances

  once the fiber has been laid. However, for the initial fiber design, the loss must

  be calculated. You should always test and validate the loss once the fiber is laid.

  Note that all calculations assume the Full Duplex (FDX) mode of operation,

  which is used in Vestas’ communication systems.

  Two calculations can be made:

  signal loss

  through a known length of fiber and

  with a known number of splicings and connections, or

  maximum fiber distance

  given a known power budget and assumed maximum loss in splicings and

  connections.

  Calculating maximum signal loss is simply the sum of all worst-case variables

  within each fiber segment. The numbers shown in the tables in section 2 and 3

  above are the maximum allowable loss, used in the following calculations

  [_______]

  

      

  

                   

  7

  Page 5 of 7

  Signal Loss [dB]

  = (Fiber Attenuation H km)

  +

  (Splice Attenuation H # of splices)

  +

  (Connector Attenuation H # of connectors)

  +

  (Safety Margin, normally 3 dB)

  The Signal Loss may not exceed the Power Budget of the switch equipment used

  (see values in section 3. Optical fiber cable types).

  For a given power budget - and making some assumptions about the number of

  splices and connections - you can also estimate the distance you can run a fiber

  of particular specifications. Calculation of

  Net Power Budget

  may be done as

  follows, and afterwards the

  maximum cable distance

  can be calculated:

  Net Power Budget [dB]

  =  (Power budget from switch)

  -

  (Losses from splices H # of splices)

  -

  (Losses from connectors H # of connectors)

  -

  (Safety margin, normally 3 dB)

  Max. cable distance

  [km]

  = Net Power Budget / Fiber Attenuation

  PB

  Multi-Mode cable tends to disperse a light wave unevenly and can create a form

  of timing jitter as the data traverses the cable. This modal dispersion tends to

  create data errors as the data rate increases.

  In addition to calculating budget across Multi-Mode fiber, you also need to

  calculate the losses resulting from modal dispersion. The maximum link distance

  due to data rate restrictions for Multi-Mode fibers is as follows:

  Max. cable distance

  [km]

  =Bandwidth of fiber / Signal Rate

  MD

  where signal rate for different data rates is as follows:

  Standard

  Actual Signal Rate

  Data Rate (Mbps)

  10

  BaseFL

  20 MHz

  10

  10

  0BaseFX, 100BaseSX

  125 MHz

  100

  For example, assuming you are using 100 Mbps Fast Ethernet with an actual bit

  rate of 125 MHz across a 62.5/125 m Multi-Mode fiber at 1300 nm. The modal

  μ

  dispersion of 1300 nm Multi-Mode cable is 500 MHz*km minimum and will

  result in the maximum distance due to modal dispersion:

  Max. Distance

  [km]=500 [MHz*km] / 125 [MHz]= 4 [km]

  MD

  The

  maximum acceptable length of your fiber

  will be the

  least

  of the max.

  cable distances calculated above.

  

  

  SF# 1091496

  

      

  

                   

  7

  8. Definitions

  ITU G 652

  Defines the specification for standard Single-Mode optical fiber.

  ITU G 653

  Defines the specifications for dispersion shifted Single-Mode optical fiber.

  ITU G 655

  Defines the specifications for non-zero dispersion shifted fiber.

  EIA/TIA

  The Electronic Industries Alliance (EIA) is a national trade organization that

  includes the full spectrum of U.S. manufacturers, representing more than 80% of

  the $430 billion electronics industry. The Telecommunications Industry

  Association (TIA), formed in 1984, as a non-profit making organisation owned

  by its members, is the prime national trade association for the

  telecommunications industry in Great Britain. TIA’s role is to improve the

  competitiveness, global business development, technical and quality standards

  and staff competence of its members.

  Dispersion

  Multi-Mode dispersion (Modal dispersion) and spectral dispersion cause

  Dispersion. Modal dispersion occurs in Multi-Mode cables where there are

  higher order and lower order modes so the same signal will be delayed by

  different amounts resulting in the spreading of the pulse. This effect does not

  occur in Single-Mode fibers. Spectral dispersion occurs in MM and SM cables

  because different wavelengths are travelling at different velocities through a

  medium. The factors affecting dispersion are fiber cable length, fiber

  specifications, data rate and wavelength. Other dispersions may occur are

  Chromatic Dispersion, Polarisation Mode Dispersion, etc.

  Dispersion is measured in

  ps/km*nm

  which represents the amount of pulse

  spread from an ideal pulse for every km of fiber and every nm of wavelength

  change.

  LSZH (Low Smoke Zero Halogen), FRNC (Flame Retardant Non Corrosive),

  LSHN (Low Smoke Non Halogen)

  Cable materials for both indoor and outdoor use that do not emit toxic smoke if

  burning.

  OTDR

  Optical Time Domain Reflectometer, used to measure the length of a cable, and

  detect any flaws in it. Can also be used to measure end-to-end loss, although less

  accurately than a power meter.

  OLTS

  Optical Loss Test Sets: Optical Source and Power Meter used to measure the

  end-to-end loss through a fiber optic strand, or system of cable, connectors and

  patch cables. Measurements are more accurate than an OTDR.

  [_______]

  

      

  

                   

  7

  Bandwidth

  Fiber bandwidth is given in MHz*km. A product of frequency and distance,

  bandwidth scales with distance: if you halve the distance, you double the

  frequency. If you double the distance, you halve the frequency.

  Attenuation

  Attenuation is loss of power. During transit, light pulses lose some of their

  energy. Attenuation for a fiber is specified in decibels per kilometre (dB/km).

  Attenuation varies with the wavelength of light. There are three low-loss

  "windows" of interest: 850 nm, 1300 nm, and 1550 nm. The 850-nm window is

  perhaps the most widely used because 850-nm devices are inexpensive. The

  1300nm window offers lower loss, but at a modest increase in the cost of LEDs.

  The 1550nm window today is mainly of interest for long-distance

  telecommunications applications.

  Loose Buffer

  The fiber is contained in a plastic tube for protection. To secure better

  waterproofing protection to the fiber, the space between the tubes is sometimes

  gel-filled. Typical application is outdoor installations. One drawback of the loose

  buffer construction is a larger bending radius.

  Tight Buffer

  Buffer layers of plastic and yarn material are applied over the fiber. Results in a

  smaller cable diameter with a smaller bending radius.

  [__________]