Renewables: "talking 'bout my generation"

Andy_WSM

Not a bad day here.

Well, not bad as in my best so far this year. :T

Still waiting on the illusive Hawaii though!

4.71 O's (18.45 kWh)

Sterlingtimes

13,000 Wh / 3,780 Wp = 3.44 Os

Odd report on the Enphase stating the "microinverters are reporting no data". Wattson indicates 13,660 Wh against Enphase 13,000 Wh.

https://enlighten.enphaseenergy.com/pv/public_systems/2y7S502614?preview=1

As for the iBoost, I have recorded 104.49 kWh in just under four months. Assuming 75% efficiency this is 104.49/0.75 = 139.32 kWh equivalence in gas saving.

Incremental costs of gas including VAT is £0.03034 per kWh.

Savings through iBoost = 139.32 * 0.03034 = £4.23 in 4 months.

Not very good!

My thought now is that I will never divert more than 4 kWh per day to water without major modifications to the system. My annual projection is £30 saving.

A poster beginning with z (can't remember the name) will quite fairly say "I told you so".

[PS the poster considering a £400 iBoost investment should think carefully before proceeding. Payback could be greater than a decade.]

Dodo0808

A much better day today. Sunny in the morning and clouding over after 12.

3.45 O's.

old_grouser

...and another sunny silver spoon day in Sussex by the sea - 5.5 Os - the sixth Hawaii in the last 31 days. I was very lucky in my choice of roof all those years ago....
Mrs Grouser rocked off to London for a jolly, leaving me to do the washing, paint the kitchen ceiling and similar suitable retirement tasks, so I never actually saw the sun....

cool_techie

Crossed the double figure generation mark today for the first time:j

12.104kWh / 3.15 o's.

For once, the weather forecast proved right.

Regards,
CT

old_grouser

Sterlingtimes wrote: »

13,000 Wh / 3,780 Wp = 3.44 Os


As for the iBoost, I have recorded 104.49 kWh in just under four months. Assuming 75% efficiency this is 104.49/0.75 = 139.32 kWh equivalence in gas saving.

Incremental costs of gas including VAT is £0.03034 per kWh.

Savings through iBoost = 139.32 * 0.03034 = £4.23 in 4 months.

Not very good!

My thought now is that I will never divert more than 4 kWh per day to water without major modifications to the system. My annual projection is £30 saving.

QUOTE]
Sterlingtimes,
You are lucky if you have a gas hot water system that can claim 75% efficiency. Mine turned out to be more like 20% efficient, but then I have half a mile of piping, some of it unlagged and unlaggable, and the h/w circuit also heats two towel rails. In the summer, with all gas power off, I found the diverter (Solarimmersion in my case) could provide more than enough hot water for four people on most days.
[...and the Z man is probably Zeupater, the bringer of clouds]

Oscargrouch

3.88 O's for me.....:D

legoman62

1961Nick wrote: »

1.93 O's today.

A result considering how poor the afternoon was. I guess all that rain was travelling Northwards & got to you mid morning?

Yeah, and into today too. 1.18 O's for me. Feeling spooned:(

58% of March gone and made 42% PVGIS.....not bad...cr*p:)

edwink wrote: »

Thank you for your response Hetty.


Would you mind me asking roughly how much you paid to have it installed!! We have been quoted just over £400 from a very reputable local company. Does that sound about right???


Thanks for any responses guys and girls!!!


Edwink

I've seen a couple installed...as countryman say's, looks easy.

The ones I've seen are only used to heat water.

Not sure about Immersun, but believe the wireless one allows you to divert elsewhere.

Would be handy if you had underfloor heating or another leccy eater.

I can give you the info on how to make a device to heat your water for £25.00..

but you would need to change your immersion for a 1kW;)

Merlin139

OMG!!

I feel the SPOON! coming my way!!

2.96 = 0.7446541 O's

Reason for poor showing:

Have covered up my panels because I do not want them to get cold!

pinnks

I've had my Immersun since July 2013. Based on my gas use for hot water only over the summer, it costs me about 6kWh of gas per day to heat water. 20m unlagable pipe plays its part. Using Immersun I need about 2kWh electricity per day to do the same.


So far I have put about 1200kWh through the Immersun, including some space heating on the second output.


Run the maths whichever way you want - 2kWh x 625 days or so x 11p, or 6kWh x 625 x 4p - and I have saved about £140 over 20 months. Does it for me and gas is off for 6 months a year.


I was talking with the Immersun technical guys recently and they informed me that you can put the device on a 13A plug if need be. Not something to do for the immersion heater of course but if using for other devices like space heating makes DIY installation easy.


I have just upgraded to the mk2 as I want to use the myimmersun when it is released to get web-based monitoring and the swap-over was easy for anyone confident with wiring an appliance into a fused outlet etc.