Renewables: "talking 'bout my generation"

EVandPV

Exiled_Tyke wrote: »

Sorry against all my judgement I'm just too tempted to join in. 0.812 O's today.

Bah, there's always one isn't there !

Martyn1981

Exiled_Tyke wrote: »

Sorry against all my judgement I'm just too tempted to join in. 0.812 O's today.

HA! I got 1.5 ............... kWh's.

But month end prediction has now risen to 105% thanks to the 4 days before.

1961Nick

0.86 O's yesterday.

EricMears

Kernel_Sanders wrote: »

You're perfectly at liberty to quote your production in kiloWatt hours, or even Watt hours. As you quote your kWp, you can leave it to others to 'do the maths'.

Completely agree !

The 'raw' O is completely useless as a means of comparing two different systems. It takes no account of where the property is, the direction(s) in which the panels are pointing or local shade conditions. Far more useful would be a system that expressed output as a fraction of the PVGIS forecast for that day (even that month would be some help)

Martyn1981

EricMears wrote: »

Completely agree !

The 'raw' O is completely useless as a means of comparing two different systems. It takes no account of where the property is, the direction(s) in which the panels are pointing or local shade conditions. Far more useful would be a system that expressed output as a fraction of the PVGIS forecast for that day (even that month would be some help)

The 'O' is simply the industry standard of kWh per kWp.

Since the kWh (generation) has to take into account everything that impacts generation (how could it not), it must therefore reflect 'where the property is, the direction(s) in which the panels are pointing or local shade conditions.'

Therefore we can use the O (kWh/kWp) to compare our generation against each other, even if simply for light hearted fun.

EricMears

Martyn1981 wrote: »

The 'O' is simply the industry standard of kWh per kWp.

Since the kWh (generation) has to take into account everything that impacts generation (how could it not), it must therefore reflect 'where the property is, the direction(s) in which the panels are pointing or local shade conditions.'

Therefore we can use the O (kWh/kWp) to compare our generation against each other, even if simply for light hearted fun.

Of course actual generation reflects all the variables but without knowing what they are for both properties you can't make a useful comparison.

Martyn1981

EricMears wrote: »

Of course actual generation reflects all the variables but without knowing what they are for both properties you can't make a useful comparison.

I guess then that it comes down to your definition of what is a useful comparison. I find the O game fun, nothing more than that.

I was just pointing out that your claim (8yrs now is it?) that O's don't take account of variables remains untrue, generation has to take account of variables, even if the system was switched off and generated zero, it would be 'taking account' of the switched off variable.

If someone (actually, most people ) gets twice the O's that I do then I can 'compare' and know that their system has performed twice as well as mine that day, haven taken all the variables into account.

Have fun.

EricMears

Martyn1981 wrote: »

I guess then that it comes down to your definition of what is a useful comparison. I find the O game fun, nothing more than that.

I was just pointing out that your claim (8yrs now is it?) that O's don't take account of variables remains untrue, generation has to take account of variables, even if the system was switched off and generated zero, it would be 'taking account' of the switched off variable.

If someone (actually, most people ) gets twice the O's that I do then I can 'compare' and know that their system has performed twice as well as mine that day, haven taken all the variables into account.

Have fun.

As long as it's just for fun then please carry on enjoying it. But if someone else gets twice the Os that you do, then you'll have absolutely no idea whether that was because theirs are less shady than yours, theirs pointed directly at Sun at peak generation time, they live in a sunnier district than you or one of your cats has been sat on the panels all day.

Screwdriva

An abysmal 0.13 O's in South East London (Zone 2). By far the worst performance since installation mid December.

10X 400W LG Bifacial panels.

legoman62

0.025 O's here today:mad::mad::(