Browse Forums Heating, Cooling & Insulation Re: HELP With Incorrectly Positioned Solar Panels - Sydney 9Feb 27, 2009 8:21 am Hi Southies, I probably can't help much here. For my panels, the positions are shown on the plans that were submitted to council. I thought council requires to know this as this affects the exterior appearance. Have you checked if they are on you plan?? Building Clarendon Brighton - Done and moved in Sept 2009 Re: HELP With Incorrectly Positioned Solar Panels - Sydney 10Feb 27, 2009 12:47 pm Casa2 solar panels facing due west results in the following degradation: Yearly average degradation: 14% Summer degradation: 1% Winter degradation: 31% For hot water panels, you want to maximise winter performance. Add another 10 degrees to the south ad it's looking very bad. Correct conclusion but wrong reason. Yearly degradation is the important figure, not winter degradation. This sound counter-intuitive but the net yearly energy gain is predominantly determined by the efficiency of the 'shoulder seasons' e.g. spring and autumn. The best solution is to optimise for that period of the year. Summer is easy - there is more insolation than you probably need and even an inefficient set up is going to churn out enough hot water for your needs. Winter will be a struggle no matter how well the system is set up. There is about a third less sun. The collectors also work less efficiently due to heat loss to the cold air (unless you have an evacuated tube collector). At the best you can only heat about 1/4 to 1/5 of your tank before needing boosting. In other words, fiddling around here is going to get you small gains - maybe 25 extra litres of hot water per day. Where you are going to get your biggest benefit is by increasing spring or autum efficiency. There is more sun and the air temperatures won't challenge the collector.The earlier in the season you can start producing all your hot water needs, the greater the net annual gain. Smaller changes in % efficiency during this season will yield higher absolute gains. So a 50% loss of winter efficiency is easily made up by a 25% gain in efficiency in spring or autumn. Re: HELP With Incorrectly Positioned Solar Panels - Sydney 11Mar 01, 2009 3:49 pm Southies.
This document might help. http://www.resourcesmart.vic.gov.au/documents/SHW_performance_req.pdf Re: HELP With Incorrectly Positioned Solar Panels - Sydney 12Mar 01, 2009 4:08 pm thankyou dymonite69 & Yak_Chat, after having studied the info you have both provided, we think that the installer was right.
In other words, the aspect is not ideal but it is reasonable. Built the Eden Brae Cambridge 34 Family with Boston Corner Facade I looked into it a few years ago and my conclusion was to just build a carport that will support panels and get a system installed separately. The company I looked at had… 1 6560 Hello - we were hoping to apply laminate click lock panels to our concrete ceiling, but not too sure how to go about attaching the panels to the concrete. Any idea what… 0 1729 0 11411 |