The eRoof system is designed on the following principals:
  • It achieves maximum efficiency in energy generation.
  • It provides maximum weather protection and functions as a very efficient roof system.
  • It provides maximum thermal insulation, aiding energy efficiency and preventing energy loss through thermal leakage.
  • It is easy to install – i.e. no specialist systems integrator is required – it is therefore widely applicable.
  • It is aesthetically pleasing – in fact it looks just like a normal roof (users should not even see that they have a solar roof).
  • It is fireproof.
  • It is virtually carbon free – and is made from the most acceptable green materials.
  • It is cost efficient and cost comparable with a normal roof – the economic model is therefore not dependant on subsidies (although will be augmented by them).
  • It complies with the highest international standards in respect of materials construction and safety.
Whilst the eSolar eRoof system actually comprises up comprises up to three elements: eSolar (the solar system for the solar roof), eControl (the brains and operating module of the system) and eStorage (the storage system for off grid applications). This system an also be combined with eWind (the wind system for high wind regions), and once developed, eHydro to provide a fully comprehensive energy generating system.

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The eSolar subsystem comprises two basic components, the eSlab (base tile) and the eSlate (top tile) as shown in Figure 1. The system can be installed by a normal roofing contractor as it is designed with wireless interlocking elements which do not require specialist’s assembly. Only the eControl unit will require an electrician to install.

02 E-slabs are secured to the roof structure using nails or screws. The interlocking ‘tongue-and-groove’ joints between adjacent e-slabs enable them to function as a waterproof layer, while the materials used in trapping of a layer of still air within the specially moulded casing, which is made from a specially developed green material, FRC, which provides basic thermal insulation for the roof . Electrical wiring within the e-slab conducts electricity generated by the eSlates, and interlocking connectors between e-slabs carry the power across the span of the roof to be processed by eControl. eSlabs are designed to safely carry generated electricity to a special socket into which the eControl unit is plugged.

eSlates are designed to replicate conventional rock slate roof shingles. These are made from highly insulating and fire proof materials, specially developed by AEDL, into which are laminated high energy generating photovoltaic cells. eSlates are mounted on eSlabs using standard fasteners and there are no wires so no specialist expertise is necessary to put them up.

04 03 Measuring 200mm X 300mm X 5mm, each e-slate is designed to look aesthetically similar to the conventional slate that it replaces, using matching coloured solar cells (AEDL is currently developing other colour options).

There are 18 e-slates for each e-slab, and the e-slates have a frontal overlap which ensures full weatherproofing, similar to a conventional roof and which helps to achieve the aesthetic effect of a tiled roof. eSlates are covered with a self cleaning film which helps to prevent dust build up and maintain efficiency.

AEDL recommends that live eSlates are only installed in those parts of the roof which are sure to receive constant sunshine. For other areas, for example those areas around the edge of a roof or those in shadow, AEDL can supply dSlates, which look exactly the same as eSlates but are not live and therefore are much cheaper. By mixing eSlates and eSlates the roof is able to retain its consistant appearance so that the eRoof becomes hard to distinguish from a normal roof.

05 A further advantage of the eSolar system is that by mixing the number of live eSlates and dummy dSlates the customer can adapt the energy generating power and cost of the eRoof to suit their own requirements or budget. A final and not inconsiderable benefit of the eSolar system is the ability to upgrade it as more efficient cells come into the market, rather in the way that computers can be upgraded. This can be done by merely exchanging eSlates for more up to date versions. AEDL will be operating a full recycling policy as new versions of the eSlate become available enabling customers to exchange their current eSlates for discounts on newer models.

A final and not inconsiderable benefit of the eSolar system is the ability to upgrade it as more efficient cells come into the market, rather in the way that computers can be upgraded. This can be done by merely exchanging eSlates for more up to date versions. AEDL will be operating a full recycling policy as new versions of the eSlate become available enabling customers to exchange their current eSlates for discounts on newer models.

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All materials used in eSolar roofs are tested for carbon compliance and are recyclable. For more information on how to obtain your eSolar eRoof // ">contact us.
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