Renewables: "talking 'bout my generation"

Oscargrouch

Merlin139 wrote: »

Good day! Too hot! Much of the day lying on my back watching clouds evaporate! while drinking beer. Now rather red in places!Hawaii + 0.994 O's

That'll be the beer then...:beer::beer::rotfl:....A/an Hawaii + 0.24 O's today, keeps up with the average...

legoman62

Hawaii + 0.5625 O's here today:D
July average so far = 18.5kWh per day:T

ASavvyBuyer

An Hawaii + 0.29 O's today.

Martyn1981

Yesterday was a nice day with 4.7 O's. Currently predicting 120% and 746kWh's for July if the rest of the month is average. But it's not looking average.

An extra 3kWh's per day (above average) would break the record for best month ever - July 2013 and 775kWh's. :cool:

JKenH

Your a brave man..What cost was the addition of batteries:..What is the life expectancy of the batteries, and forecast replacement costs?..

Under the Moixa Gridshare scheme the batteries are warranted for (I think) 25 years. When they fall to70% capacity they are replaced so expecting a couple of replacements. (In the short term I just don’t think batteries are economic. I did look at other battery systems which were cheaper per kWh of capacity but felt the Moixa offering was a bit different.) A 3 kWh battery (effective 2.4 kWh) capacity is only going to save about 35p a day say £100 pa if you manage to fill it every day. In theory you can refill the battery from cheap rate Economy7 (if like us you have it) so could save another 20p or so per day but this only takes the maximum rsaving to about £150 pa which is not a great return on the nominal £3k cost of the battery. However with Gridshare Moixa are aiming to achieve a critical mass of say 2000 batteries when they can sell electricity back to the grid to cover short term peaks. The rate per kWh may be similar to the earliest FiT payments and Moixa will share the profit made. Until that scheme is up and running Moixa are paying Gridshare partners £50pa.

What I have found with the battery is that it does chip in during the day when domestic consumption exceeds solar generated, e.g when boiling a kettle on a cloudy day and then it refills again. The rest of the battery is discharged in the evening covering base load and lasts until about 2am when the cheap Economy7 rate electricity is available.

The 7.8 kw system including battery and I Boost came in at £10,300. I didn’t go for the battery under the illusion that there was a lot of profit to be made. Projected benefits/savings are of the order of £1000 pa which should rise with inflation. We are in (hopefully) the early years of retirement and I see the investment in solar as a diversification of my (meagre) investments. It is a better return than an annuity, not subject to the vagaries of the stock market and tax free.

KevinG

After a couple of nondescript days, made 5.84 Os today, which is more like it. The heat impacts generation by at least 10% and I have never seen the panels with a worse layer of dust on them, could do with a burst of rain to clear that off.

JKenH

After a couple of nondescript days, made 5.84 Os today

Where do you live? The last 6 days here have all been marginally below 4 Os, today being 3.7

Just out of interest what is the highest daily Oscar score recorded?

Merlin139

Poor day by July standards.

4.32 O's


Passed July PVGIS around midday so cannot complain!

legoman62

Just missed a/an Hawaii with 4.95 O’s or 19.8 kWh today:D

Oscargrouch

JKenH wrote: »

The 7.8 kw system including battery and I Boost came in at £10,300. I didn’t go for the battery under the illusion that there was a lot of profit to be made. Projected benefits/savings are of the order of £1000 pa which should rise with inflation. We are in (hopefully) the early years of retirement and I see the investment in solar as a diversification of my (meagre) investments. It is a better return than an annuity, not subject to the vagaries of the stock market and tax free.

Hmm, dont think that would work out for me; my total energy costs per year amount to £615.82p. Will need to split that to cost of Gas V Leccy, but would think gas takes the Lions share; thanks to Solar PV: I will let you know the split...:)..Today, managed A/an Hawaii + 0.44 O's...