Is Tesla Powerwall 2, value for money

nadersiabi

The answer is no.
I recently bought Tesla 2 to divert electricity generated to it. The Tesla was meant to save electricity that I generated but not used during the day. Since I purchase this I have no opportunity to store any electricity because everything I generate is used during the day.
When I bought it I did not know how much I use but I knew how much on average I generated. Now I know I use all my electricity generation and there is no surplus to store.
For this reason I found and possibly many people who bought this, they do not save any power either. This was not explained to me at the time of the purchase.
Tesla is now suggesting to change my single meter to economy meter where the electricity is cheaper at night time and expensive during peak time (Day). They are saying night time charge will then be used during the day time.
I have now checked the prices for day and night rate. Even if I charge the battery during the night, the amount charged will be used within the first few hours of the day and therefore I will then end up paying double the price if I use daytime electricity from the grid. I am currently paying 11p per KWH for single rate meter and changing to day and night meter, the prices will be 8p night time and 17p day time. Any saving I made by utilising night rate will be wiped out by day rate and I am 100% sure I will be worse off as a result.
So to make it simpler for people who are thinking to buy Tesla power wall as a cost of £7000, please don't. You will never ever make any saving to recover your initial investment.

EachPenny

nadersiabi wrote: »

When I bought it I did not know how much I use but I knew how much on average I generated.

How did you not know how much you use? I was going to ask if you had a free unmetered supply (and ask for your supplier's details ) but that appears not to be the case.

nadersiabi wrote: »

So to make it simpler for people who are thinking to buy Tesla power wall as a cost of £7000, please don't. You will never ever make any saving to recover your initial investment.

If my maths is right, that £7000 (did that include installation?) would have purchased you 63,636 kWh's of grid energy. I'm struggling to see how the economics ever stacked up. :huh:

Merlin139

Take a look at this thread they have been discussing batteries for over 2 years.

https://forums.moneysavingexpert.com/discussion/5568536/on-grid-domestic-battery-storage

Cardew

Batteries at current(sorry!) prices are simply not viable.


How much they will reduce in the future is a matter of conjecture, but I suspect it will be some years before they are a practical proposition for private dwellings - even those with solar/wind generation.

Blackbeard_of_Perranporth

On my current tariff, that £7,000 would had bought over 17 years of grid energy, but I doubt I will be here in 17 years time, so to me, I would ...