DrPhilG wrote: » 19 in the end. Exported 3.7kWh, if I'd been home an hour earlier I'd have caught it all. Or if I'd planned ahead and set the dishwasher I'd have used a fair bit of it too. Didn't anticipate such a good day!
Winterman1234 wrote: » Brutal day here in South donegal, only got 0.4kWh today from our 2.48kw system. Have to go right back to March 8th and February 21st to find daily production as low. How did you do Phil.
Geeyfds53573 wrote: » Serious stats - seems you got the myenergi setup correctly?
DrPhilG wrote: » I'll just bathe in the glow of these numbers for now. And so far only 0.2kw exported. The wife has been going nuts, 3 loads of washing done (bed clothes etc) 2 loads of drying, dishwasher. The battery is full and the car has guzzled 3.5kWh so far.
DrPhilG wrote: » I get that you're trying to be realistic, no sense in people coming here to make calculations on a very expensive investment and getting their head full of daft ideas, but I think you're making it harder than it needs to be.
And in the better weather, it really isn't as complicated as you're making it out to be. If it's a good day you don't have to be a genius to figure out if you're likely to be able to do a load of washing etc.
KCross wrote: » Your first paragraph is exactly my point. Your second paragraph is fine too but it’s managing that is the thing. It requires micromanaging the system by looking at cloud cover and predicting what is likely to happen later in the evening. Fine on a cloudless day but it will obviously get progressively harder from now on. As I said, I’m just setting realistic expectations for others reading the forum who might think that they will end up with no day rate electricity used after they put in Solar. Those kind of queries have been asked even in the last 24hrs on the forum. TL;DR it’s not all that easy to self consume in a way that is financially beneficial and you need to be honest with yourself in how much it’s actually saving relative to night rate.
KCross wrote: » It requires micromanaging the system by looking at cloud cover and predicting what is likely to happen later in the evening. Fine on a cloudless day but it will obviously get progressively harder from now on.
garo wrote: » It's a bit less clear cut than that. As Phil is discovering - and I have discovered during the summer of WFH - it's more of an art than a science. You kick off the appliance looking at the sun and just when it needs to heat up the water 20 mins later the feckin clouds roll in. But that's life. Most of the time, days like today when you get "cloudy spells" it's ok to use a bit of the battery - note that even in cloudy conditions right now my 4.8kW system is producing 1kW. So a dishwasher using 2200 will only use a bit over half from the battery. And there is enough time in the afternoon for the battery to be replenished fully. So it'll still be cheaper to switch on the dishwasher now rather than at night rate. Trust me, I've done the sums.
KCross wrote: » Just setting realistic expectations Phil! Having a high % of self consumption is the goal but if you are pulling from your battery to run the dishwasher you would be as well off to just run it on night rate. It’s important people understand the numbers.
unkel wrote: »
DrPhilG wrote: » Did anyone recommend that? I thought the general concensus was that 4kwp was plenty!
DrPhilG wrote: » As Autumn progresses I won't use the remote access items. I only do so on strong days when I know that the battery will fill up again. I think you're over complicating things.
KCross wrote: » Right, but that’s still depleting the battery for later tonight. Excess is what you want to use not the battery. It’s all good if there is loads of excess and the battery is full but let’s see how it works as the autumn progresses.
DeclanD54 wrote: » And you said you had a Seai inspector out? Good to hear you got it,ide say its a weight of the shoulders
