Solar PV Feed In Tariffs - Good or Bad?

The_Green_Hornet

If you don't want to use Wikipedia, an abundance of electricity statistics are published in the 'Digest of UK Energy Statistics' (DUKES) tables which can be found here:

http://www.decc.gov.uk/en/content/cms/statistics/energy_stats/source/electricity/electricity.aspx

According to the latest tables, Drax Power Station has an installed capacity of 3870 MW (coal) and 75 MW (gas and oil), whereas the total installed capacity of Solar Photovoltaics was 264 MW as at Q3 2011.

albyota

The_Green_Hornet wrote: »

If you don't want to use Wikipedia, an abundance of electricity statistics are published in the 'Digest of UK Energy Statistics' (DUKES) tables which can be found here:

http://www.decc.gov.uk/en/content/cms/statistics/energy_stats/source/electricity/electricity.aspx

According to the latest tables, Drax Power Station has an installed capacity of 3870 MW (coal) and 75 MW (gas and oil), whereas the total installed capacity of Solar Photovoltaics was 264 MW as at Q3 2011.

err ..... but..... errrr...didn't the firesale of PV in the 6 weeks up to 12 Dec 2011 double that figure.....errr....just saying like.....:cool:

AL

HalloweenJack

The_Green_Hornet wrote: »

Drax Power Limited financial five year summary can be found here:

http://www.draxpower.com/investor/results_and_reports/

http://www.standardandpoors.com/prot/ratings/entity-ratings/en/eu/?entityID=277409&sectorCode=UTIL

have something else to say about them....

albyota

some interesting facts ? here,

https://restats.decc.gov.uk/cms/national-renewables-statistics/#Capacity

I'm going to have my tea.....but like Don I'll be back later with me popcorn

Cardew

don0301 wrote: »

why did you just modify your post to "home" solar graham?

After denial from Graham that he had modified post:

= Don0301 really? then how come i was watching your status and it was "modifying post"?

Can you get anything right?


This was the quote from Graham at 11:36am today:

Well, given that last year, Drax produced the total yearly prodution(sic) of home generated solar every 12 minutes (on average).

(my bold)

That post has not been modified.


Quoted by Martyn at in his post at 2:14pm

Well, given that last year, Drax produced the total yearly prodution(sic) of home generated solar every 12 minutes (on average).

Seems identical wording to me - even down to the typo error


Do you ever read and understand what you have read?

You should stick to advice on replacement of shower units - although come to think of it, you dug a hole there and kept digging!

Martyn1981

albyota wrote: »

some interesting facts ? here,

https://restats.decc.gov.uk/cms/national-renewables-statistics/#Capacity

I'm going to have my tea.....but like Don I'll be back later with me popcorn

Al, is it just me, or has peace and quiet finally arrived on these threads.

The only sound across the land is the quiet munching of popcorn!

Think it's time for my tea too. Fancy a packet of popcorn now, you know what it's like when someone puts an idea in your head.

M.

don0301

@cardew

oh, your such a card

never let the truth get in the way of a good story

*munch,munch*

ps thanks for subsidising my FiT

grahamc2003

I'll try to explain the maths and context in a way that no one (sensible) can disagree with, step by step.

First, the statement which was challenged as being 1000 times incorrect, from post 57 of this thread


The overall effect? Well, given that last year, Drax produced the total yearly prodution of home generated solar every 12 minutes (on average). Maybe next year, it may take 20 minutes for Drax to produce the annual home solar output, but you get my drift.

So we need the generation (not capacity) of Drax last year, and the generation (not capacity) of home solar panels last year.

From a table Martin kindly put referenced (which started this calculation 4 days ago, see post 258 here https://forums.moneysavingexpert.com/discussion/comment/50153227#Comment_50153227 (just to stop those who say I have suddenly gone around editing the substance of my posts, which I never do, only the spelling etc)

Here's the table
http://www.leeds-solar.co.uk/blog

which gives the home solar generation for last year of 500MWh.

Drax's output last year, from Z's reference, was 25.8TWh

So Drax produced 51600 times as much as home solar last year (25.8x10**6/500).

There are 365.25x24x60 = 525960 minutes in a year,

so in 525960 mins, Drax produced 25800GWh

so to produce 0.5GWh takes Drax (525960/25800)*0.5 mins = 10.19 minutes.

So less than I calculated previously (due to my estimate of Drax's output being lower than the actual).

zeupater

grahamc2003 wrote: »

Well, you're a bit of a spoilsport having a bash, afterall, your engineering abilities aren't in doubt, at least by me - I really wanted to see Mart's justification for his views, and seeing his calculations which I expect would have been 'interesting'.

But anyhow, I'm afraid you haven't read the question correctly, so I'm afraid it's a grade F for your answer, although I expect it has merit for the question not asked which you did answer.

Please re-read the question again, and have another go .... and if you don't end up with 12 minutes, I'd recheck your calcs again.

Hi

Okay lets look at this again.

You stated ....

grahamc2003 wrote: »

.... that last year, Drax produced the total yearly prodution of home generated solar every 12 minutes (on average) ....

... pretty self explanitory, and not quoted out of context, then in a later post which queried this and mentioned that this could be out by a factor of 1000 you replied with ....

grahamc2003 wrote: »

.... Show your logic showing my statement that drax generated in 12 minutes the total annual output last year of all home solar is a factor of 1000 out.

If you can't, or want to weasel out of your statement, tell me who the 'some' who would suggest that are, and I'll ask them .....

So firstly, the statement of 12 minutes is wrong. It's not only wrong for total UK pv capacity, it's wrong for home capacity too if that's being seen as a potential point of defence, my reasoning being that around 70x more capacity was installed in 2011 in systems sized below 4kWp than above 100kWp and this describes where the installed capacity is, which is domestic installs and not farm-scale arrays.

I think that so far the examination body would be seen as being in error and the grade would likely be revised as the answer suits the question when context is considered ..... .... I didn't want to be a spoilsport, but I would have thought that an interjection would be expected after posting an open invitation .... "tell me who the 'some' who would suggest that are, and I'll ask them" ... so, knowing the question would be asked, I answered ... .... once more, I'll stand by the answer and the supporting calculation within the context which they were provided, and here's why ....

Recent posts have stated capacity installed late in 2011, this is in my view invalid as it wasn't generating throughout 2011. other posts suggest that 500MW of installed capacity is available, but for the same reason this should be discounted, 200MW was a view of the installed capacity mid-year and therefore would likely be considered the average installed capacity for the year as a whole ..... (let's not even consider that the EOY installed capacity, according to DECC, was ~830MWp as this simply means that the 12 minutes becomes 9 days domestic scale to ~10days total )

If the 12 minutes is maintained as being correct then please provide supporting logic, sources and calculations and I will be open to concede the point if the logic is considered sound, however, as already stated, I am in agreement that the current installed pv capacity is miniscule compared to just a single, albeit very large, power station ......

HTH
Z

HalloweenJack

http://www.solarpowerportal.co.uk/news/uks_largest_rooftop_project_is_now_complete_5478/

now THAT is the sort of roof top solar which is the way forward - the equivilent of 820 house based 2kw installations