Who is to pay to remove the battery once it reaches its end of life and how much?

Reply to article

For original story, Click Here.

I do not understand the numbers in the article. a 10 kw solar system will produce 40 kw a day. So at 60 c a kw maximum savings of $24 a day so MAXIMUM $750 a month. How can an 8.8 kw system save $1200 to $1500 a month. Can an article with accurate information be presented.

Reply to article

For original story, Click Here.

How about some actual real numbers.

Let's say you bought your 12.6kWh battery for $10k. Let's say you pay 50c a kWh.

Even if you cycle the battery every single day and only use the power to replace peak usage (totally unrealistic) the most you would save is $6.30 a day (in reality you'd lose 12.6h of FIT and the power would likely be used for cheaper shoulder and off peak usage) . The maximum gross benefit is $2239 a year, ie. less than $200 a month. When you factor in cost of capital (at least $660 a year), FIT loss of 70c a day, pay back is over 7 years.

If you don't use all 12.6kWh or you are only replacing shoulder or off peak usage the savings collapse and pay back balloons beyond the battery warranty period.

The heavy lifting for ant savings is the solar installation. Even then the claim that they are reducing a $1500 a month bill to $60 is ludicrous. An 8.8kW system would produce around 1200kWh a month assuming 5x per day and sunny every day which is unrealistic. Even then the maximum saving is $600 assuming a very high 50c a kWh and would require the house to be using all that 8kW generation internally.

So none of the claims are remotely plausible

Reply to article

For original story, Click Here.

Tried the solar panel /battery calculator.

Got towards the end of the exercise and it froze.

Very frustrating. Wondered if this is the one the Federal Government is using?

Reply to article

For original story, Click Here.

Totally agree the numbers are Soooo fictitious they are ludicrous

and to most they wont understand how to calculate them accurately and think wow what a saving

Reply to article

For original story, Click Here.

The numbers are completely false and fabricated, simple math throws them out the window surely the writer of the article does some checks to ensure accuracy instead of trying pull wool over the consumers eyes that batteries are not financially viable and the only reason people have them is for power security or they were duped into thinking they would pay for themselves

Reply to article

For original story, Click Here.

Just for the comments saying these savings are "ludicrous"

Let me take you through my billing

I'm on a special EV plan with the following breakdown

00:00-06:00 @ $0.08 /kWh - I charge by batteries in this window.

06:00-11:00 @ $0.56/kWh

11:00- 14:00 @ $0.00 (yep that's right it's free here!) so I schedule my car, spa, pool to all run in this period and for my batteries to be 100% SOC come 2:00pm.

14:00-00:00 @ $0.56

My FIT is $0.03 - so instead of exporting my energy to the grid I use it!

With products like @CATCHPower I divert surplus energy to my hot water system and control when other large loads like air con, EV and Spa run, so these loads only run from surplus solar or when the energy is free.

My batteries cycle 2.5 times a day, I schedule them not to discharge when the energy is free and instead make sure they are 100% charged in the free period and again when the energy is only $0.08/kWh.

The true value of solar is self consumption and having the tools to make it work for you.

Reply to article

For original story, Click Here.

A BYD home battery warranty is for the lesser of a number of key attributes of a battery. One of them is total energy throughout from the battery. Their warranty averages out to 10 years of a single daily cycle inclusive of the estimated deterioration of the battery over that period. Ie. it's more like 8.5 years at full capacity cycled daily.

If you are cycling twice a day you have halved your warranty coverage.

Reply to article

For original story, Click Here.

Article has been written by a biased person without a grasp of mathematics. The battery is never paid off in this example. In the future as Labor bent on un-reliables continues and the tariffs continue to skyrocket plus supply charges (and solar tariffs that have sneaked in) and the feed in tariff shrinks towards zero: then batteries at half the price may prove viable.

However, just be reminded that we tax payers are subsidizing these systems in the order of 50% so the entire business is a sham.

Reply to article

For original story, Click Here.

I ran several scenarios of our power consumption, then asked for a suggestion for number of panels - as if by magic the exact same answer came back regardless of what I'd said. Also magically I would pay a little more for having solar than I currently do by not having it, and my "savings" are in the thousands per year. It all seemed like a good idea, unless I took time to think about the rubbish answers this calculator throws out. If you think about the actual numbers this is complete bull

Reply to article

For original story, Click Here.