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Dairyxox:
Its not really for running gutsy appliances, the real benefits come from being able to sell back the power at peak rates, instead of just when its sunny.
@8-10c/unit, this thing will never break even.....
Great, the more competition the better. I'm seriously looking the Enphase battery that is about to be launched.
Time shifting is too disruptive to family life. A small amount of storage seams to makes sense.
I\nteresting Article suggesting price of around $2500.00 plus monthly fee
Jaxson:
The buy back rate is wholesale, so any system that revolves around that intention is quite flawed. Maybe earlier on when you were paid closer to your retail cost, but the power companies soon shut that down.
Better approach in my opinion is to go direct online solar (no batteries) and aim to cover your monthly line charge only via selling back power, and schedule your power loads to the middle of the day. Simple timers on your DHW for example will ensure this is only heating during the day, and delay start timers on dish washers and washing machines should push these into the self generation part of the day, after you've left for work.
Batteries can be added to this type of system at a later date, but direct online is a good low maintenance and cheaper place to start to get your feet wet.
I agree with your comments, if the power companies are only paying 7 to 10 cents per unit and the local lines company charges a small fee on every unit exported, then I want to use as much of my generated power as I can and buy less imported at retail plus GST.
Even if the stored power only runs small appliances and chargers it will benefit "my power company", and not theirs. I installed 5kW solar PV at the same time one of the power companies was being part sold off, so I consider the solar install as investment in "my power company".
I will wait and see how much it will cost to add storage and what sort of return on investment there is. It may be better to upgrade my hot water heating with a heat pump, or buy a more efficient car. For example I've switched to getting around on a cheap electric bike.
:)
Interesting. I am still waiting for my Tesla Power Wall + Solar to be installed. When it happens - the Analytics will start.
Hi I had a conversation with sales at Solarcity about the Panasonic battery. The 8kW battery with 2kW output, and 1kW emergency supply is normally sized for a 3kW solar install. 10 year warranty. Install cost is around $12000.
I will keep an eye on developments, in the technology battery sizes and costs in future, but does not look cost effective for me at present.
:)
kotuku4:
Hi I had a conversation with sales at Solarcity about the Panasonic battery. The 8kW battery with 2kW output, and 1kW emergency supply is normally sized for a 3kW solar install. 10 year warranty. Install cost is around $12000.
I will keep an eye on developments, in the technology battery sizes and costs in future, but does not look cost effective for me at present.
12K for an 8KWh battery!!!!, there must be a typo in their somewhere, or they are just taking the p###.
kotuku4:
Hi I had a conversation with sales at Solarcity about the Panasonic battery. The 8kW battery with 2kW output, and 1kW emergency supply is normally sized for a 3kW solar install. 10 year warranty. Install cost is around $12000.
I will keep an eye on developments, in the technology battery sizes and costs in future, but does not look cost effective for me at present.
Japanese techs has introduced a while ago solution (add-on box) to use your EV (e.g. Leaf) as a power bank. With 3 times more capacity in the Nissan Leaf HV Li battery - that solution looks way better - you have a car you can drive and it is your power bank when you need it. When I have both Tesla Power Wall and Virtual Leaf assembled in my Lab - I may look at analysing the practicability of that solution as well.
Unaware of anyone bringing those interface boxes for EVs from Japan yet.
1/2 the density and bromine? Atleast a Li will just start a fire and maybe kill you. Damage a ZB batt and you'll be over the exposure limit of 0.3ppm pretty quickly!
The Solarcity sales person suggested switch of power supplier, they are linked up with Ecotricity. I'm with Meridian, the solar buy back rate and daily charges are ok but the supply rate is pretty high. Ecotricity are not available in my area yet, has anyone used them?
:)
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