Latest Comments

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO
I think the short answer turns on the opportunity cost for you. If your bills this summer are going to be totaling thousands of dollars, I don’t think it pays to wait. Plus, we still don’t have a target date for getting IQ8, to say nothing of the price. Enphase has the Q4/Annual earnings call on the 26th, so we may get some more insight then.
02/19/19 @ 23:13

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
winfield100
I have IQ7’s in an array. I would love to have a bunch of houses in the area with IQ8’s perhaps for a small, but growing VPP (Virtual Power Plant) w/batteries for FCAS ‘n such
02/17/19 @ 18:47

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
ususun
Hi Jim, I just came across this site after looking for IQ7 IQ8 compatibility. I am considering installing a 6Kw (20 panel) system this summer with IQ7. I don’t need to be in a rush. It’s a DIY project so easy enough to change out microinverters if I needed to, but would rather not have to pay an additional cost if patience is on my side. I live in a place with limited natural disasters and consistent sun, but like the idea of being connected should something happen. I’ve heard that Q3 may be when IQ8s are released. You mentioned to glennpiper282 not to wait, but have you any update since? If I could wait until fall is that worth it?
02/13/19 @ 23:25

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO
I cannot say for certain, as I did not ask about that expressly. I understand that there will be some sort of transfer switch, so it would seem to make sense that the Generac transfer switch could be supported, but I have no actual knowledge regarding that - sorry! Maybe someone from Enphase will chime in.
02/03/19 @ 21:31

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
solarguy
Hi Jim! For people that will be building a new Enphase installation later this year, have you heard of any design requirements that you can share for an Ensemble configuration? We’re looking for IQ8 islanding capabilities for storm resilience alongside a generator, and Enphase has a Generac partnership. Do you know if Ensemble will be backwards compatible with existing Generac whole-house transfer switches?
02/03/19 @ 16:15

In response to: I've got solar; why is my bill so high?

Comment from: Jim Jenal - Founder & CEO
I will reply to you directly.
01/14/19 @ 21:51

In response to: I've got solar; why is my bill so high?

Comment from:
stellareese
We have solar panels installed for a year now with Sunrun. They told us that our bills will significantly go down every month. Instead of going down, our power bills went up tremendously. How can we get out of this contract. The promises they gave us on saving money every month was a total lie. Every time I see my power bill my blood pressure goes up. This is the first winter that my power bill is $170.00. Please help me on what to do.
01/14/19 @ 21:45

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO

I would not wait as we don’t know how soon the IQ8’s will be available (we have a shortage of IQ7’s right now). I am assured that they are compatible, but that you will need a certain “critical mass” of IQ8 (30-50%) to allow the microgrid to operate.

My understanding, but I don’t have documentation for this yet, is that the IQ8-based storage will count toward the required IQ8 percentage.

Jim

12/15/18 @ 16:53

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
glennpiper282
Hello Jim What did you find out from Enphase on the compatibility of the IQ7 compatibility with the IQ8 technology? Would this be on any IQ7 model? Getting ready soon to install and wondering if I should wait at this point for the IQ8 to be released. Thanks!
12/11/18 @ 04:06

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
tdddd10
5 stars
Thank you for this. I hope we can get more information on this as it gets closer to being available. It would also give the ability to take a system off grid should a home want to. Again thank you for posting this, Tom
11/17/18 @ 19:29

In response to: The Biggest News at SPI 2017 - B3 Bypass

Comment from:
solarken
3 stars
So many misnomers on a center fed panel. Really look at the construction. A 200A I’d Fed in the center to two 100A bus bar sets, one up, one down. Now, split your feed from two inverters and your good. But I like this new idea. It may become very useful…
09/25/18 @ 02:35

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO

Hi Shannon –

It is my understanding that there will be such a transfer switch, and one presentation that I saw include the use of a standby generator. I don’t know more specifics but maybe I’ll learn more this week as Solar Power International.

Jim

09/24/18 @ 16:47

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
shannon
How will a solar array with IQ8 devices achieve anti-islanding compliance? If the grid goes down, and the inverters are providing power for devices in the home, the grid will appear as a huge overwhelming load unless there is a transfer switch that disconnects the grid at the service entrance/main breakers. Is there going to be a transfer switch unit made by enphase that communicates with the IQ8 mesh? Will there be a generator auto start and transfer switch unit there as well. This is exciting sounding advances. I am in the market for a solar solution for rural home and farm on grid, but at risk of extended outages.
09/22/18 @ 08:27

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO
There was no transfer switch, per se, but they shut off the breaker that connected the array to the grid, so there was no way for the system to export power to the grid. The local microgrid did have consumption CTs as well as a production CT, but that was for the display, not to control what the IQ8’s were doing. The IQ8’s figured out what was needed based on the attached loads and modified their output to match.
09/08/18 @ 21:32

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
sandeen
Jim - Thanks for the writeup. So is there no transfer switch involved here, I take it? Is it just using CTs on the utility connection to measure net grid power flow and adjusting solar output so that there’s no backflow when the grid is down?
09/08/18 @ 19:11

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
amperageman
Nice to see the write up of what we have been hearing about.
08/24/18 @ 00:06

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO
My understanding is that you can indeed include a generator.
08/20/18 @ 17:44

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
gridzilla
Add in integration with a generator and you have something truly disruptive.
08/20/18 @ 03:47

In response to: What I Saw at Enphase - Mind Blown!

Comment from: Jim Jenal - Founder & CEO

In case it wasn’t clear, I am not associated with Enphase, other than being an enthusiastic installer of their products. That said, I believe the 10 kWh Encharge system contains 12 IQ8’s, and presumably 4 in the smaller unit.

I would not expect to see Enlighten try to model savings as that is a complex undertaking since utility rate structures are so complicated and diverse. However, there are companies that are good at doing that, for example we use EnergyToolbase to model potential system performance and apply it against historical interval data and the chosen utility rate schedule.

Thanks for taking the time to comment.

08/19/18 @ 20:43

In response to: What I Saw at Enphase - Mind Blown!

Comment from:
g__day
Oops - I missed reading on slide 39 that each 3.3kWh storage unit has a 1.28kW output (assume that is 3 * IQ8) - guys that is very, very nice!
08/19/18 @ 01:59
Jim Jenal is the Founder & CEO of Run on Sun, Pasadena's premier installer and integrator of top-of-the-line solar power installations.
Run on Sun also offers solar consulting services, working with consumers, utilities, and municipalities to help them make solar power affordable and reliable.

Ready to Save?

Let’s Get Started!

Give Us a Call!

626.793.6025 or
310.584.7755

Click to Learn More About Commercial Solar Power!

We're Social!



Follow Run on Sun on Twitter Like Run on Sun on Facebook

Search

Run on Sun helps fight Climate Change
Free blog engine