jason121
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Installed between two houses that's whyFact from where? I have a friend with a 3kW system (all south east facing) and his produces roughly a third of that?! Explain that?
Discuss Just look at the overhang! in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
Installed between two houses that's whyFact from where? I have a friend with a 3kW system (all south east facing) and his produces roughly a third of that?! Explain that?
Installed between two houses that's why
Nope, completely unshaded. Decent panels, correct inverter for the system, good installation, reputable installer.
Fact from where? I have a friend with a 3kW system (all south east facing) and his produces roughly a third of that?! Explain that?
D Skelton...
Please return to your flat earth where global warming doesn't exist.
I welcome sensible debate but fail to understand why someone who is obviously so ill informed, skim reads google results and obviously has no interest in solar is posting here?
Your 'facts' are wrong...period. PV panels aren't 30% efficient...they are 15-20% efficient, but like every expert idiot...you look at the headline % figure to base your opinion on.
Solar does work, is financially viable and is an important but often overlooked part of our future energy supply. These stupid comments are damaging, as there are too many other lazy, armchair experts out there who start quoting this crap as fact.
I take it you don't drive a car? They are obviously equally useless due to there 30% efficiency.
I'm posting this as I feel it is important that information posted online is factual. Anybody reading this thread in the future...please ignore******* comments and do your own proper research.
This post is nothing to do with proving whether or not pv is worth fitting
It was, up until everyone started chirping up with "You're an idiot", "You don't have a clue what you're on about" and "Your facts are wrong", without anyone actually showing me otherwise!
I understand I may have rocked the boat a little by speaking out on the solar section about the fact that PV isn't all it's cracked up to be, but treating me with the same contempt as you would someone who has murdered a member of your family just seems odd to me! lol
Calling you an idiot for what you've posted on a public forum doesn't devalue any of my credibility - I'm 100% accurate and simply stating a fact that everyone here can see.
I'm 100% accurate
My language has been quite restrained considering the crap you have been spouting.
Are you on here because your friends system doesn't work or what? If its under performing get someone to go and fix it.
I think I get this now.... your going to announce any second now your either an Architect or the new energy minister.
financial outlay is around 50-60% lower now than with previous FITs, payback times are roughly similar for domestic, and significantly lower now for commercial installs with high daytime energy consumption than they were in 2011.Financial outlay and payback time with previous FIT's.
Financial outlay and payback time with present day and future FIT's.
In the region of 3-5 years for most systems in the UK, maybe a bit longer for small systems with relatively higher per Wp embeded carbon, or those where the install team has travelled the length of the country etc.Efficiency in relation to their carbon footprint.
98% of solar PV systems in a 2 year study by sheffield university researchers are performing at or above their predictions. (link)Actual performance compared to advertised performance.
Aesthetics are important, and there are some terrible looking installs out there which has given the industry a bit of a bad reputation, and often makes me cringe when I see some of them. We've always paid attention to this issue, and now almost exclusively install all black panels, and try to encourage roof integrated panels if possible for situations where the aesthetics are most important.Aesthetics.
for the majority of people solar PV would beat all other renewables hands down IME with or without subsidies. In some situations this won't apply, eg if they have very good wind resources, or very poor roofs for solar, but it would hold true for most.Viability and cost effectiveness when compared to other renewables ie 'bang for your buck'.
There's a difference between personal and professional opinion.These are all the issues that have already cropped up but it seems to me you're all lumping too many facets of PV ownership together to have any kind of meaningful discussion especially when some of them are simply personal opinion and some may be a much larger consideration on particular installations than others.
D Skelton... to pick up on a few points.
Solar PV is nothing like 30% efficient
No solar PV panels currently on the market get anything close to 30% efficiency, most are in the region of 15-16% efficient, with the highest being something like 21%. Take off another 10-20% losses from the inverter, cables, temperature reductions, angular reflectance etc.
So if you're going to attempt to slate solar PV on this basis you'd come across at least slightly more like you knew what you were talking about if you used figures in the region of 12-18% overall system efficiency, 30% is the stuff of PV installers wet dreams.
Solar PV is infinitely more efficient than the previous roof covering.
Tiles, slates, sheet metal etc are all utterly useless at converting sunlight to electricity, compared to them solar PV is infinitely more efficient at that process. We now have 3GWp of solar PV generation capacity in the UK, instead of the zero generation capacity we'd have had in those locations if the solar PV hadn't been installed.
This point applies to most renewables other than thermal generation (ie biomass, biogas etc)
Many houses are now capable of generating 50%-100% of their annual electricity consumption level
The average consumption level for UK households is around 4,500kWh a year, the average annual generation figure for a 4kWp solar PV system is in the region of 3600kWh per year, or 4500kWh per year for a 5kWp system (the biggest standard system we install on a standard 16 amp G83 connection limit).
Granted, much of this electricity tends to get exported, but it's ludicrous to attempt to argue that this level of generation is in anyway negligible.
Solar PV costs have fallen by 50-60% in the last 3-4 years, gas generation costs have increased by 50-60% in the same time period.
Solar PV vs Nuclear
Solar PV capacity is being installed at a faster rate than nuclear, with solar PV capacity on course to be generating significantly more per year by the time the first new nuclear plant opens than that plant will, with new solar PV capacity at that time generating at a significantly lower lifetime cost per kWh than the price nuclear has been guaranteed.
Nuclear is also the only energy generation technology to have had a massive increase in the level of support being offered under this government, with the nuclear clean up costs alone now accounting for over half of DECC's entire budget, and the costs just keep rising.
Reply to Just look at the overhang! in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net
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