Why not sunslates?

Sunslates are the most aesthetically pleasing way to do PV. The advantages are that it is almost unnoticeable as PV (no attractive nuisance), it uses the same Sharp cells as our panels (very efficient technology), It is a little more expensive as you are getting a 50 year roofing material as well. Sunslates work best on clean, open, rectangular surfaces with no vent pipes, chimneys or dormers.

Cape Cod Solar Energy Fair

Solar Energy, Solar Panels, Renewable Energy, Off the Grid, Sun Slates, Solar Power, Vegetable Oil Engine Conversions, Sastainable Energy, Wind, Organic Farming, recycle-bicycles,

Sunday, February 11, 2007

Cape Cod Houses and Sunslates
















Sunslates® : A Beautiful Way to Generate Electricity

Sunslates® are an advanced photovoltaic product. Sunslates® allow the roof of your home to serve as both a roof and a power plant simultaneously. A typical installation of 216 Sunslates® (about 300 square feet / 28 square meters) will cover from 60 to 80% of your power needs.

Alternate Energy Inc, as a stocking distributor of Sunslates, is qualified to install and service Sunslate brand Photoelectric products.

Frequently Asked Questions About SunSlates:
Q. Do I need to cover my entire roof with SUNSLATES?

A. It is not necessary to cover your entire roof with SUNSLATES. For a "standard" system of 216 SUNSLATES you will use about 300 square feet of space on your roof. The number of SUNSLATES that you will want to use depends on several factors that you can discuss with one of our employees.

Q. Does my roof need to be oriented in a certain direction?

A. As you may know, the best orientation for a SUNSLATES roof is due south. However a southwest or southeast roof will have a negligible reduction in power production (2-4%) and a due east or due west roof will see from 10 to 15% less power compared with a due south roof. Roof pitch is also a factor in power production, but it is not crucial. The difference in production between an ideally sloped roof and a regular 4/12 or 5/12 roof is usually no more than 5%.

Q. How does the system shed water?

A. The Sunslates use an overlapping system, much like a shake roof where there are two layers at any point on the roof. This is the way the system sheds water. Sunslates need at least a 4/12 (18 degree) roof pitch in order to shed water properly. Sunslates are based on a Swiss company known as Eternit. They produce the fiber cement slate that Sunslates are based on. The Swiss Eternit system is well known in Europe and has been used for around 60 years with great success. In Europe, this type of roofing is popular.





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