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World Class Solar Tariffs on the Way in Ontario

By Paul Gipe, Contributing Writer
March 17, 2009   |   4 Comments

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OPA's press release suggested that the tariff for residential rooftop solar PV could result in 100,000 solar installations capable of generating one percent of Ontario's electricity supply
4 Reader Comments
Comment
1 of 4
March 18, 2009
The roof top PV tariff truly will stimulate installation. Just as expected.

But why do you suppose the ground mounted PV's are being paid only half as much?

Especially here in snow country, Ontario, roof mounts make little sense, due to the difficulties of snow removal maintenance on a non-accessible roof top.
Ground mounting entails extremely less difficulties in sweeping off an over-night "dusting" of an inch or three of snow. It also eliminates the number of roof penetrations needed for a roof mount array, adding longer life expectancy to the roof material, used without penetrations.

Someone got a clue?
Comment
2 of 4
March 18, 2009
The path forward for solar installations with least environmental impact is to install solar panels on buildings. Retrofit buildings will have problems and challenges eg. south orientation of roof, roof slope relative to sun especially during the winter; and perhaps the most important issue, building structural issues to fasten panel support frames and panels to the building, and to consider added wind loading on the building now that may require added structural bracing. These are all costs related to roof installations. Hopefully the tarrif encourages roof installations, especially on new buildings.

However, most buildings are year round energy consumers. Installed on a building, the generation is at point of use and the excess could outward through the existing electrical service into the grid in order to feed another building that does not have any generation. Losses between generation and consumption is minimized, including minimal resources used for the transaction to take place.

On the other hand, taking crop producing farm land out of production for for solar makes even less sense than growing corn for ethanol... pardon me, unless all energies from the corn stalk and the nitrogen fertilizer made from natural gas are taken into account and without 'harvesting' soil nutrients.

Obviously putting solar panels on golf courses will also get somebody upset. Never-the-less, covering a desert with solar panels could have a beneficial effect in reducing wicking and evaporation from an already dry earth. The point is that plants consume CO2 and this needs to be respected in dealing with the CO2 causing climate change.

In a nutshell, putting solar panels on the roof of a building does not incrementally take away from plant life ability to convert CO2 into O2 using sunlight and sequesteer the CO2 in a solid carbon form, ie wood products, that may be used to build that building.

Eric Jelinski M. Eng. P. Eng.
SEW Inc.
Stayner, Ontario
Comment
3 of 4
March 23, 2009
I guess this plan will help increase the value of the house considerably, and get the reeling building industry and overall economy back on its feet as well.
Comment
4 of 4
March 28, 2009
frank i can't ansure your questions but by way of helping you i ask you this question. have you heard of bi-facial solar panels? they were developed by NASA for use on the space station with power generation comeing from both sides of the p.v. panel. the article i was reading suggested building a carport off the sunnyside of the house. (i am sure that a free standing p.v. system would recieve this same benifit) by haveing the sun reflect off the snow onto the underside of the panel would add 10% energy production during the winter or in case of a carport parking the car where the sun would reflect off the windows on to the underside of the panel also

i hope this idea helps
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paul gipe

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About: Paul Gipe has written extensively about renewable energy for both the popular and trade press. He has also lectured widely on wind energy and how to minimize it... more »

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