Slide 1: ASO Study Customer Update Meeting
ASO Study Customer Update Meeting February 24, 2020 Westwood, MA Safety First and Always
Slide 2: Agenda
Agenda Eversource introductions Overall ASO study process update Post ISA projects update Level 0/1 results Level 3 update Feedback from ASO stakeholders Next steps Q&A Safety First and Always
Slide 3: Update on Process & Key Dates
Update on Process & Key Dates Level 3 studies – Customers opt in technical Level 0/1 customer Kickoff meeting or opt out to define information payments received study groups requested from December 12th December 19th defined group January 20th *Level 0/1 project scopes locked* ISO-NE Level 0/1 Level
Slide 4: Post ISA Projects
Post ISA Projects Varying statuses by individual project Level 0s Eastern MA – 5 Western MA – 28 1 – approved 8 – approved 1 – to be approved in Feb RC 1 – approved in Jan RC, but has chosen to withdraw 1 – to be approved in April RC 5 – to be approved in Feb RC 2 – waiting on customer data 14 –
Slide 5: Post ISA Projects - Level 3s
Post ISA Projects Level 3s Eastern MA – 24 Western MA – 1 3 – on March RC agenda 1 – withdrawn 21* – anticipating May RC agenda *4 projects at Wing Lane need correct models Safety First and Always
Slide 6: Level 0/1 Screening Results – WMA
Level 0/1 Screening Results – WMA 17 projects total of 65.8 MW – 15 projects totaling 58.6 MW in Pittsfield area – 2 projects total of 7.2 MW in Springfield area Transfer limit screening findings/results – Post contingent flow on a transmission line in the Pittsfield Area was slightly above 100%
Slide 7: Level 0/1 Screening Results – EMA
Level 0/1 Screening Results – EMA 26 projects total of 94.2 MW – 4 projects total of 11.7 MW in Greater Boston – 8 projects total of 32.5 MW in Upper SEMA – 14 projects total of 50 MW in Cape Transfer limit screening findings/results – No transmission upgrades required – No applications will be
Slide 8: Level 0/1 Next Steps
Level 0/1 Next Steps Level 0/1 PPAs to ISO-NE – Notification emails to customers last week for project size verification (prior to PPA submittal) – Awaiting customer responses Response timeframe may impact ISO deadline for next agenda Submittal of PPAs to the RC by March 3rd RC review and ap
Slide 9: Level 3 Studies Update
Level 3 Studies Update Level 3 studies – Conduct thermal and voltage steady state, transient, short circuit, stability analysis – Technical data requested from projects and is required to start studies Technical data list provided via email on January 16th (also posted to ASO website) – To date,
Slide 10: Level 3 Studies - Technical Data Needed
Level 3 Studies - Technical Data Needed Conductor types and distance Project inverter modeling information (>=5MW) – Between Project and inverters/GSUs – Datasheet and manual – Project’s tie line to the point of interconnection – Reactive capability curve and/or data tables (POI) necessary to cr
Slide 11: Level 3 Data Validation & Approval Process
Level 3 Data Validation & Approval Process Customer Project Ready Submittal Package for Level 3 Accepted Study Customer Transmission Planning Submits Performs Technical Data Model Package Validation Customer Customer *March 16, 2020* Customer Project Ready Submittal Resubmits Submittal Package Rejec
Slide 12: Level 3 Studies – Milestone Dates
Level 3 Studies – Milestone Dates Date Milestone This Week email to customers with payment information and request to opt in or out March 16th Customers opt in/out, provide payment and technical data due Cure Period timeframe to get project’s modeling rectified and any March 16th - March 23rd missed
Slide 13: Feedback from ASO Stakeholders
Feedback from ASO Stakeholders Communications to date Level 3 study cost – If deeper dive analysis required in any of the 5 geographic areas, additional payment may be requested for projects in only those areas Safety First and Always
Slide 14: Next Steps
Next Steps Level 3 customers – Look for an email from ASOStudyInquiry@eversource.com requesting that you opt in or out of the study alongside payment information – To opt in, please respond in writing via email – No response will indicate an “opt out” Level 3s to submit payment and all technical
Slide 15: Customer Questions Received
Customer Questions Received What will be the effect of changing inverter type on the transmission level study? We are considering changing inverters on some of our projects from a central to string inverter - we are not contemplating a change in A/C capacity, just inverter type / manufacturer. Sin
Slide 16: OPEN Q&A
OPEN Q&A Safety First and Always