Prosolar

can you please advise when your men can come in and fix our solar system thank you

Richard Kahn

HBRK Associates Inc.
575 Lexington Avenue 4th Floor
New York, NY 10022

Afternoon Richard,

I have Dan on the schedule to head to GSJ on Friday.

Regards,

Brian Walden

ProSolar America, LLC

Dir. of Operations

we are without any solar currently

can you please try to have dan come sooner

thank you

Richard Kahn
HBRK Associates Inc.
575 Lexington Avenue 4th Floor
New York, NY 10022

I want to ensure we have the PCB bypass discussion with the engineers prior to the visit and will try to expedite.

Brian Walden
EE RE Consultant

please confirm that you will be at GSJ tomorrow to work on the Solar

thank you

Richard Kahn
HBRK Associates Inc.
575 Lexington Avenue 4th Floor
New York, NY 10022

Afternoon Richard,

We're still trying to have a final discussion with Stefan as well as track down multiple 128MB or smaller SD cards to reboot the Sunnyboy inverters. We're moving as quickly as we can in order to execute the conversion plan but it looks like we have to push to Monday. Dan has shown Michael how to get the system back up and operating in the event of it dropping offline and that is working for the interim.

Regards,
Brian Walden

please confirm what time you will be arriving at GSJ on Monday

thank you

Afternoon Rich,

I believe the normal boat arrival time is 8 or 8:30 a.m. in Redhook.

Dan will be there.

Regards,

Brian Walden
ProSolar America, Ilc

Director of Operations

We're still evaluating but all is functioning as intended for the moment. Additional monitoring and confirmation are needed since the weather over the last week has been extremely cloudy.

Would it be possible to have our call on Thurs. afternoon at 3 EST?

Regards,

Brian Walden
ProSolar America, Ilc

Director of Operations

Brad is traveling to San Francisco for a conference and a synopsis will be relayed the next day. Dan has been asked to write a synopsis of the efforts.

i have not yet heard back from anyone on a time to speak

please advise

thank you

Richard Kahn
HBRK Associates Inc.
575 Lexington Avenue 4th Floor
New York, NY 10022

Richard Kahn asks about scheduling a meeting on Thursday morning or Friday, and when he can expect a summary.

Good =fternoon all, sorry for the delay my email had an issue and became =nlinked so I wasn't receiving these untill now. Regarding GSJ =ere is what's been achieved.

-all Aquion battery =odules are wired to bypass the corroded, water damaged circuit boards =hat could interfere with charging profiles.

-sunny islands (6) =ere downgraded to firmware version 6.0.02. This was done to allow a =roader, linear charge profile to be set

-charging parameters =re now based on voltage set points rather than state of charge =alculations done internally with different references.

-max charge voltage =as been set to 58.5V and the batteries will not stop charging untill a =oltage 1.5V over the set limit is a achieved for 15 seconds. This gives =hem the ability to serpase the previous charge voltage of 56.7V

• the main issue =hat caused so much down time before was as follows. A target charge =oltage that matched the Aquion batteries was not possible with the =revious profile. Compiled on that was faulty Aquion circuit boards =reventing the batteries from properly charging to a suitable voltage. =quion, as we know, is no more, so it's impossible to obtain =eplacement parts. Aquions bms never met the as advertised performance =nd created more issues than we could have imagined. In short, the =hanged I made allowed for a higher, more suitable battery voltage to be =chieved and prevents the premature shut down we saw before.

Again, sorry for the =elay, hope all is well

Thanks

Dan Chrisman

Good Evening

The solar system is down on GSJ No power =unny islands Sunny boys seem to be in =farm Cluster box no power Please advise as to Dans schedule Regards =rice

Sent from my =Phone

Afternoon Richard,

As you may be aware the =nternet connectivity has been off on GSJ for a couple weeks. This has =revented continual analysis but are working with Brice and Micheal in a =eactive way as best we can. I've asked Dan to reach out to =rice to see if the operation of the system is back to the successful =onfiguration levels seen over the last few months. Dan relayed that he =as not heard from him in a couple days but I indicated that he needs to =ontinually inquire. Relatedly, I've rent you a few emails recently with no response. Just want to ensure you =re receiving them.

Regards,

Brian =alden
ProSolar America, Ilc
Director of O erations

is solar back up?
if so =lease advise what issues were..
thank =ou

Richard Kahn
HBRK Associates Inc.
575 =exington Avenue 4th Floor
New York, NY 10022

internet connectivity is no explanation for why system fails =onday / works tuesday and fails wednesday.. next few =mails are brians emails he sent to me.. please =dvise thanks

Richard Kahn
HBRK Associates Inc.
575 =exington Avenue 4th Floor
New York, NY 10022.