SWIFT ROOFTOP WIND ENERGY SYSTEM™

Specification for Standard Installation

Revision: 01

Date of Revision: Monday 03 December 2007

Summary

This document specifies a Standard Installation of the Swift Rooftop Wind Energy System™ (SRWES).

The purpose of the specification is to clearly define what is included in the quotation for installation. If your property has features that fall out with the parameters of the standard installation then additional charges may be payable.

In this document, you will see the term “non-standard variations”. This term refers to specific features of your property that are non-standard and indicates the additional costs that may be associated with installation on your property.

This specification covers electrical, mechanical and access details of a standard install and where possible explains how an install can vary from standard and the costs associated.

Electrical

We follow the flow of the electrical components from the consumer unit to the turbine. All wiring internal to the premises is Tri-rated and/or appropriate mains cable (for AC side only) with white conduit and clips (Interior Wiring). Standard installation will include a total of 30m of Interior Wiring, which can be used in different lengths for different parts of the system as appropriate. Any additional Interior Wiring is charged according to the extra distance required at £2.50+VAT per metre up to a maximum as detailed below.

Lightning Protection

Lightning protection must always be considered. Most installations will be fine, but BS6651/BS62305 must be adhered to, so there may be a requirement to provide a lightning earth or interface with an existing lightning protection system. Interfacing with an existing lightning protection is preferred.

The installer will assess your property for lightning protection. In some cases a pole earthing kit may be required.

There are 3 options:

1. Bond to structural steel work

2. Bond to existing lightning protection system

3. Add an earth spike

If additional work and equipment is required to meet the requirements BS6651/BS62305 it will be charged to a maximum of £250+VAT.

Consumer Unit

Attaching the SRWES to the consumer unit. The consumer unit exists at the premises and is connected to an active electricity supply.

Standard Installation

There should are 2 spare modules in your consumer unit (sometimes called a distribution board) for the installers to install a Miniature Circuit Breaker. This is where the Swift system is connected to your existing power circuits.

Non Standard Variations

Should there be insufficient space in the existing consumer unit and an additional consumer unit is required then there will be an additional equipment cost of up to £50+VAT and additional labour cost of up to £120+VAT.

Renewable Devices Electrical Control System (RD Inverter) and DC Isolator

The consumer unit is connected to the RD Inverter using Interior Wiring. appropriate mains cable should used between the Consumer Unit and the RD Inverter. A mounting area of (width x height) 40cm x 60cm should be allowed for the inverter (dimensions: 320x483x150mm) with additional space required for the DC Isolator.

Standard Installation

Standard installation of the RD Inverter and DC Isolator will include the following components:

1. The Swift Inverter

2. A DC Isolator

3. Interior Wiring as appropriate

Non Standard Variations

It is not envisaged that there will be any non standard variations in this part of the installation.

Junction Box (Interior) OPTIONAL

In some cases it may be preferable to extend the Interior Wiring from the DC Isolator to a Junction Box where it is converted to Steel Wire Armour. It is up to the customer and the installer to decide which is most suitable.

If the Junction Box is used, then:

Interior Wiring connects the DC Isolator to a Junction Box. The junction box is situated in close proximity to the point where the wiring leaves the building.

The purpose of the junction box is to convert the “Aesthetically Pleasing” Interior Wiring to the Required Steel Wire Armour Exterior Wiring.

Standard Installation

Standard installation of the Junction Box will require the following components:

1. The Junction Box

2. Interior Wiring as appropriate.

Non Standard Variations

It is not envisaged that there will be any non standard variations in this part of the installation, However, for some commercial and industrial installations it may be preferable to use Steel Wire Armour between the DC Isolator and the Mast.

Steel Wire Armour

This is the cable that is used for Exterior Wiring.

Standard Installation

Standard installation will include a total of 5m of Exterior Wiring, which is measured from the DC Isolator (or Junction Box if used) to the Gland in the mast.

Non Standard Variations

Additional cable as required (£2.50 + VAT per metre).

Mast and Swift

The incoming Steel Wire Armour connects to the Mast and Swift through a Gland near the bottom of the Mast and then to the Wiring that is inside the mast by use of a Terminal Strip.

Standard Installation

The following components are required:

1. Mast and Swift Turbine

Non Standard Variations

It is not envisaged that there will be any non standard variations in this part of the installation.

Standard installation of the turbine is possible on a variety of building types using the standard mounting mast and brackets. It is the responsibility of the installer to ensure that structure on which the turbine is mounted is able to with stand required horizontal and vertical forces.

Building Types

It is possible to carry out a standard installation on the following building types, subject to access and structural integrity of wall.

1. Stone

2. Double skin brick (including cavity wall types)

3. Concrete

4. Steel

Non Standard Variations

In some cases the building structure will require a more detailed survey to determine suitability for the installation. The cost of a detailed structural survey may be charged up to a maximum of £350+VAT.

Installation on the following building types may require building modification and/or extra steel bracing. In these cases a site visit prior to installation is required and charged to a maximum of £250+VAT.

1. Timber

2. Single skin brick

Mounting

1. One 5m aluminium mast

2. Four mounting brackets with fasteners and integral anti-vibration mounts

3. (For masonry) Eight Fischer Mechanical and Chemical Anchors.

External Mounting

The majority of turbines will be mounted externally on the gable end of a building.

Standard Installation

1. A 3000x450mm minimum vertical flat unobstructed area is required for the mounting of the mast.

2. There can be a small overhang of the eves of up to 40mm.

Overhanging Eves

When overhanging eves of greater than 40mm are encountered, building modifications are required and will be quoted for on a case by case basis, but typically no more than £250+VAT.

There are two types of modification that may take place:

1. Cut back of eves. If the eves do not extend too far out it may be possible to cut away the eves to allow the mast to pass freely.

2. Gusset Modification. If the overhang is great enough, the Mast may pass through the eves and the modification can be sealed with a Gusset.

Flat Roof Stands

There are a variety of considerations to be made when considering a flat roof mounting. It is therefore necessary to make a preliminary site visit to identify the requirements and specifics of the install. Therefore quotes are available for flat roof installations on request. The cost of an additional site visit may be charged to a maximum of £250+VAT.

Internal Mounting

Internal Mounting of the turbine is possible provided that the mounting area is available and unobstructed within the building. The mast will have to pass through the roof of the building. As buildings vary in design greatly and there may be additional concerns regarding access, it is necessary to perform a site visit prior to providing a final quotation.

Access for our installation team is one of the most important aspects of an installation. As much should be determined about the access requirements prior to visiting the site. It is up the installer to ensure that suitable arrangements for access have been made prior to installation. If a site visit is required, then it may be charged up to a maximum of £250+VAT.

Standard installations are performed using a cherry picker (a mechanical arm with a basket at the end and a man or two in it).

Standard Cherry Picker

The capabilities of our standard cherry picker installation are: maximum turbine (hub) height: 10.0m with zero outreach (for sites where the cherry picker can be set up directly beneath the turbine, adjacent to the buildings wall. In situations where there is an obstruction preventing this, maximum outreach is 2.5m @ up to 7.5m turbine height.

For the standard cherry picker to be used, the site must be of the following nature: a reasonably level, clear space is required beneath the turbines intended position. With the outriggers extended, the cherry picker has a base area of 6m x 3m on firm ground.

Non Standard Cherry Picker

If it is not possible to install using our standard cherry picker, then the hire of a larger cherry picker may be required, price would depend on the specific requirements, cost could be a maximum of £700/day for heights up to 40m with zero outreach and up to 17m outreach @ 30m height.

Scaffold

Potentially a scaffold may need to be put up. Our standard scaffold is suitable for turbines mounted up to 8m above a flat, level area a minimum of 6m x 4m.

Non Standard Access

If the cost for equipment required for non standard access exceeds £400, the customer has the right not to proceed with the installation.

If non-standard scaffolding is required, the cost may be up to £220, up to a maximum height of 12.2m

Greater heights may be reached using different types of scaffolding, however this will have to be quoted for on a case by case basis.

Access for wiring

It is obvious that wiring will pass through one or more walls. The standard quotation allows for wiring to pass through four masonry or timber walls of no thicker than 300mm. If wiring and/or conduit must pass through any additional walls there is an additional charge of £30+VAT per wall provided the thickness of the wall is no greater than 300mm. For all wiring concerns, human access and placement of conduits is to be without obstruction or building modification (routing of Interior Wiring / Conduit through walls excluded).