Greetings learned ATA members. I am in the process of research and deciding about purchasing a PC system with a Tesla battery and Reposit Power add on. There are two main systems suppliers are using, EnPhase, which recommend micro-inverters, and Solar Edge, that use optimisers. Which option is better? Of course, thus is one aspect of many for consideration.
Which is Better, Micro-Inverters or Optimisers?
(7 posts) (5 voices)-
If you want a Tesla battery (Powerwall), Optimiser is the only way to go. Enphase does not offer Powerwall, or does it? That's news to me.
Unless, you're asking Enphase battery vs Tesla battery. I haven't seen the cost yet, but if the enphase battery is cheaper by a large margin, I would get that one instead. Remember to calculate the battery capital cost in AUD per kWh, since Enphase batteries are smaller in kWh compared to Powerwall. Enphase battery is only 1.2kWh.
Another benefit from enphase is no single point of failure, where as Optimiser has one (the inverter).
Posted Wednesday 9 Mar 2016 @ 5:06:10 am from IP # -
GJOESQ
MemberRusdy said:
If you want a Tesla battery (Powerwall), Optimiser is the only way to go. Enphase does not offer Powerwall, or does it? That's news to me.Unless, you're asking Enphase battery vs Tesla battery. I haven't seen the cost yet, but if the enphase battery is cheaper by a large margin, I would get that one instead. Remember to calculate the battery capital cost in AUD per kWh, since Enphase batteries are smaller in kWh compared to Powerwall. Enphase battery is only 1.2kWh.
Another benefit from enphase is no single point of failure, where as Optimiser has one (the inverter).
Thanx Rusdy. Natural Solar, the company who is in partnership with Reposit Power and has Tesla batteries in stock as I type, do use EnPhase for Tesla batteries. I haven't asked them for a price on that as it would be ore expensive. They tell me that the "SolarEdge inverter system is very different to conventional systems and is more durable (longer warranties of 25 years on the DC Optimisers)".
Posted Wednesday 9 Mar 2016 @ 5:23:13 am from IP # -
Greg
MemberA quote from the attached article link
"power optimizers are more flexible, reliable, and cost-effective than microinverters."http://www.pv-magazine.com/archive/articles/beitrag/microinverters-vs-optimizers-_100016637/618/
Posted Wednesday 9 Mar 2016 @ 6:17:25 am from IP # -
GJOESQ
MemberGreg said:
A quote from the attached article link
"power optimizers are more flexible, reliable, and cost-effective than microinverters."http://www.pv-magazine.com/archive/articles/beitrag/microinverters-vs-optimizers-_100016637/618/
Thanx Greg.
The jury is still out it seems but I'm leaning towards the optimisers based on this article. Also, I don't want to have multiple EnPhase batteries instead of the one Tesla battery.
Posted Thursday 10 Mar 2016 @ 12:57:21 am from IP # -
cool at home
MemberI'm wondering if there's any update on this post... I'm talking with Natural Solar about adding one or 2 batteries to our existing 3.24 kW system. The panels have paid for themselves already, and total payback is not essential, but given it's either a nearly $11k or $18k investment, I don't want to toss money down the drain either.
Has anyone taken the step?
Posted Saturday 17 Sep 2016 @ 2:17:20 am from IP # -
cool at home said:
I'm talking with Natural Solar about adding one or 2 batteries to our existing 3.24 kW system. The panels have paid for themselves already, and total payback is not essential, but given it's either a nearly $11k or $18k investment, I don't want to toss money down the drain either.The additional bill savings you get from adding a battery don't really justify the up-front cost. And there are no direct environmental benefits either. So if you want a battery, I guess you might as well get a small one. The smallest at the moment is probably Enphase.
Posted Saturday 17 Sep 2016 @ 3:19:49 am from IP #
