EFTA02624818

From: Richard Kahn MIIIIIMM Sent: Friday, September 7, 2018 6:30 PM To: Jeffrey E. Subject: Prosolar 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 Begin forwarded message: From: =/b>Brian Prosolar Subject: =/b>Re: Friday June =9th Date: r/b>September 7, 2018 at 2:26:31 PM =DT To: =/b>Richard Kahn < Cc: Brice Gordon al>, Dan Prosolar >, Marcelo >, Brad Spernak michael glidden 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, EFTA_R1_01835676 EFTA02624818 Brian =alden ProSolar America, Ilc Director of O erations On Sep 7, 2018, at =2:54 PM, Richard Kahn < wrote: 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 On Sep 5, 2018, at 7:22 AM, brice gordon > wrote: .:1 Morning Same =ssue no power again Sunny islands =ead Sunny boys flashing =ellow Please as to what you would like to =o Brice Sent from my iPhone On Sep 4, 2018, at 12:11 PM, Dan Prosolar wrote: good morning all! hope =veryone had a great weekend.. minus GSJ with no power. i feel very good about my visit today. i was =eceiving error codes pertaining to an OVER- VOLTAGE situation. this is =reat news considering we have been fighting the opposite problem since =he hurricanes. i have had the system set to perform at the absolute =eek voltage it can to avoid loosing power. this maximum voltage 2 EFTA_R1_01835677 EFTA02624819 setting =eeters the system on the edge of its capabilities. as we see now it has =btained and exceeded its voltage setting limits on the sunny islands. =here is no damage done, only the inconvenience of it shutting down to =rotect itself. Today i throttled back the target voltage by 1v. this =hould prevent more shutdowns due to over voltage. i think we have got =his system dialed in. All the best, Dan Chrisman n Mon, Sep 3, 2018 at 6:57 PM, brice gordon > =rote: 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 On Jul 11, =018, at 2:10 PM, Marcelo wrote: Good =fternoon Richard, Please =ee the below email containing Dan's summary of what actions he =erformed on his last visit to GSJ. Regards, =/span> Marcelo =erez Project Manager <401A3348188040D088A29AA3089A8844[4315691.jpg> www.prosolaramerica.com 3 EFTA_R1_01835678 EFTA02624820 From: Dan Prosolar <mailto: Sent: =/b>Wednesday, To: =/b>Marcelo <mailt Subject: Re: FW: =riday June 29th 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 4 EFTA_R1_01835679 EFTA02624821 Senior Technical =pecialist Prosolar=LLC From: Richard Kahn <mailto: Sent: =/b>Wednesday, July 11, 2018 10:30 AM To: =/b>Brian Prosolar <mailto <mailto wrote: =1110.1.0lidden <mailto >; Brice Gordon Subject: Re: Friday June 29th can we do thursday morning or anytime friday when can expect =an's summary? please =dvise thank =ou Richard Kahn HBRK =ssociates Inc. 575 Lexington Avenue 4th Floor New York, NY 10022 On Jul =0, 2018, at 2:18 PM, Brian Prosolar Afternoon =ichard, Brad is traveling to =an Francisco for a conference and I'm boarding a plane to STX. ='ve asked Dan to write a synopsis of his efforts and we have =een monitoring for proper function. I'll relay this tomorrow =nce he's finished. 5 EFTA_R1_01835680 EFTA02624822 We're still =valuating but all is functioning as intended for the moment. Additional =onitoring and confirmation are needed since the weather over the last =eek has been extremely cloudy. Would it be possible =o have our call on Thurs. afternoon at 3 EST? Regards, Brian Walden ProSolar America, Ilc Director of =perations On Jul 10, 2018, at 1:50 PM, Richard Kahn =lt;r > wrote: i have =ot 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 On Jul =, 2018, at 5:36 PM, Richard Kahn cal l wrote: can we please =rrange a call for tomorrow to review current status of GSJ solar thank you 6 EFTA_R1_01835681 EFTA02624823 Richard Kahn HBRK Associates Inc. 575 Lexington Avenue 4th Floor On Jun =9, 2018, at 1:36 PM, Brian Prosolar wrote: Afternoon =ich, I =elieve the normal boat arrival time is 8 or 8:30 a.m. in Redhook. =nbsp; Dan =ill be there. Regards, Brian Walden ProSolar America, =lc Director of =perations On Jun 29, 2018, at 1:20 PM, Richard Kahn =lt > wrote: please =onfirm what time you will be arriving at GSJ on Monday thank you 7 EFTA_R1_01835682 EFTA02624824 Richard Kahn HBRK Associates Inc. 575 Lexington Avenue 4th Floor New York, NY 10022 On Jun =8, 2018, at 1:42 PM, Brian Prosolar wrote: Afternoon Richard, We're still =rying to have a final discussion with Stefan as well as track down =ultiple 128MB or smaller SD cards to reboot the Sunnyboy inverters. =e're moving as quickly as we can in order to execute the =onversion plan but it looks like we have to push to Monday. Dan has =hown Michael how to get the system back up and operating in the event =f it dropping offline and that is working for the interim. Regards, Brian Walden On Jun 28, 2018, at 11:08 AM, Richard Kahn = wrote: please =onfirm 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 8 EFTA_R1_01835683 EFTA02624825 On Jun =5, 2018, at 7:27 PM, Brian Prosolar wrote: I want to ensure we have the PCB bypass discussion with the =ngineers prior to the visit and will try to expedite. Brian Walden EE RE Consultant On Jun 25, 2018, at 5:05 PM, Richard Kahn = > wrote: we are =ithout any solar currently can you please try to have dan come sooner thank you Richard =ahn HBRK Associates Inc. 575 Lexington Avenue 4th Floor New York, NY 10022 On Jun =5, 2018, at 4:31 PM, Brian Prosolar < wrote: 9 EFTA_R1_01835684 EFTA02624826 Afternoon =ichard, I have Dan on the =chedule to head to GSJ on Friday. Regards, Brian Walden ProSolar America, =lc Dir. =f Operations On Jun 25, 2018, at 3:30 PM, Richard Kahn =lt cri > wrote: can you please advise when your men can come =n and fix our solar system thank you Richard Kahn HBRK Associates Inc. 575 Lexington Avenue 4th Floor New York, NY 10022 10 EFTA_R1_01835685 EFTA02624827 <401A334B1BB040DOBBA29AA3089AB844(431569Ljpg> <=div> Prosolar Systems Let's Get Social Prosolar Systems Let's Get Social 11 EFTA_R1_01835686 EFTA02624828