I see 4 months you're a net importer....
Well spotted, that was the 2021 data. Feb and Nov can swing either way depending on happenstance. So really it is a period of about 90-days in which a sensible-sized (max 10kWh) battery
cannot realistically bridge import/export gaps for a day or so. Whether any given year is best described as being Nov/Dec/Jan or Dec/Jan/Feb is down to happenstance of weather and consumption events. Below is the 2022 (ytd) showing how finely balanced Feb-22 was as an example of this.
The data I am showing is with gas heating and gas cooking. Things will change when I make the shift to an ASHP for heating and an electric cooker. I had expected to do that this Nov/Dec-22, but I may delay my plans. I was previously quoted GBP 7k for a (Mitsubishi) ASHP, but recently the supplier has given an updated price of GBP 10k. That to my eyes is partly due to Covid/Russia-Ukraine and partly due to profiteering, and so there is a question in my mind as to whether to delay. And clearly I would like to put in a approx 10kWh battery at the same time as the ASHP, but at the moment getting supply of any battery in the UK is nigh-on impossible, let alone getting a sensible price when any battery becomes available, and you are dreaming if you think one can select a particular product/manufacturer with any meaningful supply committment. So I am wondering whether to delay ...
I can guarantuee there is next-to-zero behavioural modification, and no cleverness in the existing controls. I came home in mid-August to find one of the adults had switched the heating on .... bless. Even well educated medics can be so stupid when they are not paying the bills.
Anyway, underlying point being, most countries need to install a shed-load of wind, as well as solar, as well as storage. There ought to be some money to be made for Tesla Energy in all that, provided that Tesla Energy pulls their socks up and performs substantially better than it has done until now. I am not impressed with the performance of Tesla Energy so far.
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www.teslarati.com
www.wsj.com
