EFTA02624522

From: Richard Kahn Sent: Wednesday, September 5, 2018 12:35 PM To: Jeffrey E. Subject: Prosolar solar=now not working... hoping brice did not tweak =ystem as he said he was going to stay on GSJ last night also told me yesterday that no one stayed on GSJ since =lidden left.. Richard Kahn HBRK Associates Inc. Begin forwarded message: From: =/b>brice gordon Subject: =/b>Re: Friday June =9th Date: =/b>September 5, 2018 at 7:22:04 AM =DT To: =/b>Dan Prosola Cc: Marcelo Bri n Wal en , Brad Spernak < Morning Same issue no power again Sunny islands dead Sunny boys =lashing yellow Please as to what you would =ike to do Brice Sent from my iPhone EFTA_R1_01834959 EFTA02624522 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 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 lv. this =hould prevent more shutdowns due to over voltage. i think we have got =his system dialed in. All the best, Dan Chrisman On Mon, Sep 3, 2018 at 6:57 PM, brice gord > =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 rote: 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> 2 EFTA_R1_01834960 EFTA02624523 Marcelo =erez Project Manager www.prosolaramerica.com From: Dan Prosolar Sent: =/b>Wednesday, July 11, 2018 1:10 PM To: =/b>Marcelo 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. 3 EFTA_R1_01834961 EFTA02624524 Again, sorry for the =elay, hope all is well Thanks Dan Chrisman Senior Technical =pecialist Prosolar=LLC From: Richard Kahn <all= Sent: =/b>Wednesday, July 11, 2018 10:30 AM To: =/b>Brian Prosolar <mailto: Cc: Brad=Spernak; michael glid•en • 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. On Jul =0, 2018, at 2:18 PM, Brian Prosolar < wrote: 4 EFTA_R1_01834962 EFTA02624525 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. 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 wrote: i have =ot yet heard back from anyone on a time to speak please advise thank you Richard Kahn HBRK Associates Inc. 5 EFTA_R1_01834963 EFTA02624526 On Jul =, 2018, at 5:36 PM, Richard Kahn •ca wrote: can we please =rrange a call for tomorrow to review current status of GSJ solar thank you Richard Kahn HBRK Associates Inc. On Jun =9, 2018, at 1:36 PM, Brian Prosola 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 6 EFTA_R1_01834964 EFTA02624527 On Jun 29, 2018, at 1:20 PM, Richard Kahn =lt > wrote: please =onfirm what time you will be arriving at GS1 on Monday thank you Richard Kahn HBRK Associates Inc. On Jun =8, 2018, at 1:42 PM, Brian Prosola 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 7 EFTA_R1_01834965 EFTA02624528 thank you Richard Kahn HBRK Associates Inc 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. 8 EFTA_R1_01834966 EFTA02624529 On Jun =5, 2018, at 4:31 PM, Brian Prosol wrote: Afternoon =ichard, I have Dan on the =chedule to head to GSJ on Friday. Regards, Brian Walden ProSolar America, =lc Dir. =1O erations On Jun 25, 2018, at 3:30 PM, Richard Kahn wrote: can you please advise when your men can come =n and fix our solar system thank you Richard Kahn HBRK Associates Inc. 9 EFTA_R1_01834967 EFTA02624530 <401A3348188040DOBBA29AA3089A884414315691.jpg> adiv> Prosolar Systems Caribbean: 340.201-4752 Florida: =50-222-3554 Let's Get Social 10 EFTA_R1_01834968 EFTA02624531