Slide 1: Greater Cambridge Energy Project (GCEP) Cambridge Virtual Open House Meetings
Greater Cambridge Energy Project (GCEP) Cambridge Virtual Open House Meetings October 4, 2021 – 7 pm October 13, 2021 – 12 noon
Slide 2: Interpretation rooms (Spanish)
Gracias por acompañarnos esta noche. La interpretación de la presentación de esta noche se llevará a cabo en las siguientes salas virtuales: Aquí - se hablará inglés Sala virtual 1 - español Sala virtual 2 - portugués Sala virtual 3 - criollo haitiano Sala virtual 4 - chino (mandarín)
Slide 3: Interpretation rooms (Portuguese)
Obrigado pela sua participação hoje. A interpretação da apresentação de hoje será nas seguintes salas virtuais: Esta sala – em inglês Sala Virtual 1 – em espanhol Sala Virtual 2 – em português Sala Virtual 3 – em crioulo haitiano Sala Virtual 4 – em chinês (Mandarim)
Slide 4: Interpretation rooms (Haitian Creole)
Mèsi dèske ou te patisipe avèk nou nan rankont aswè a. W ap jwenn entèpretasyon prezantasyon aswè a nan sal vityèl swivan yo: Isit la – Se nan lang Anglè n ap pale Sal Vityèl 1 – Panyòl Sal Vityèl 2 – Pòtigè Sal Vityèl 3 – Kreyòl Ayisyen Sal Vityèl 4 – Chinwa (Mandaren)
Slide 5: Interpretation rooms (Chinese)
谢谢你今晚参加我们的会议。 今晚演示的口译将在 以下虚拟房间进行： 在这里 – 将使用英语 虚拟会议室1 – 西班牙语 虚拟会议室2 – 葡萄牙语 虚拟会议室3 – 海地克里奥尔语 虚拟会议室4 – 中文（普通话）
Slide 6: The Greater Cambridge Energy Project
The Greater Cambridge Energy Project Getting Electricity to Where It Is Needed A strong electrical transmission grid is vital to the safety, security and economic prosperity of the region. The transmission system serves a critical role to ensure that electricity flows with a high degree of reliabili
Slide 7: A Flexible Electric Grid
A Flexible Electric Grid Supports energy delivery of remote & local clean energy resources B C E D A – Offshore wind farms A B – Hydro generation C – Land based renewable generation D – Residential and commercial power users E – Resilient and flexible electric grid The Greater Cambridge Energy Proje
Slide 8: Solar and Energy Storage have limitations
While certainly a piece of the solution, Solar and Energy Storage have limitations Solar • Not feasible due to scale & duration necessary to meet needs. • Duration of need far exceeds solar availability. • Widespread system upgrades still needed for integration. Energy storage • Not feasible due to
Slide 9: Project Overview
Project Overview New Station, New Transmission Lines, New Distribution Lines New Underground Substation in Kendall Square ▪ Integrated into Boston Properties redevelopment plans - public open space above substation between residential and commercial buildings. New underground transmission lines ▪ Fi
Slide 10: Below Grade Urban Substations
Below Grade Urban Substations Examples of In-Service and Proposed Underground Substations in North America West End Substation, Vancouver Currently Proposed https://www.bchydro.com/energy-in- Cathedral Square Plaza, Vancouver bc/projects/west-end-substation.html In Operation Since: 1984 Size: 250 x
Slide 11: Siting Route Selection – Universe of Routes
Siting Route Selection – Universe of Routes Extensive Review, Stakeholder Feedback, Iterative Approach Initial “Universe of Routes” Eversource Approach to Transmission Line Routing ▪ Starts with analysis of potential “Universe of routes” between the proposed substation and four existing substations
Slide 12: Top Routes in Putnam Study Area
Top Routes in Putnam Study Area Putnam Routes (Blue) Route P-11 (0.87 Miles) Located within public streets in Cambridge (Broadway, Ames St., Main St., Vassar St., Massachusetts Ave. and Memorial Drive*). Route P-13 (0.49 Miles) Located within public streets in Cambridge (Broadway, Ames St. and Memor
Slide 13: Top Routes in Kendall Study Area
Top Routes in Kendall Study Area Kendall Routes (Green) Route K11 (approx. 0.61 miles) • Route heads east from new substation onto Broadway before turning north across abutting Volpe Center property to Potter Street*. • From Potter Street*, route heads north onto 5th Street* and east onto Munroe* be
Slide 14: Top Routes in Somerville Study Area
Top Routes in Somerville Study Area Somerville Routes (Yellow) Route S1 (approx. 1.34 miles) • Route heads west onto Broadway before turning northwest onto Route S11C (approx. 1.64 miles) Hampshire Street. • Route follows Columbia Street into • Route heads west onto Somerville to intersection with B
Slide 15: Top Routes in Brighton Study Area
Top Routes in Brighton Study Area Brighton Routes (Red) – Two Lines Needed Route B-30 (3.43 Miles) Located in Cambridge and Boston. Route crosses Memorial Drive* as it approaches the Anderson Memorial Bridge. Sufficient Space for transmission line within bridge deck Route B-29F (3.01 Miles) • Route
Slide 16: Crossing the Charles River
Crossing the Charles River HDD Under Charles River at Magazine Beach Route B2A / B2AN • Conventional open trench construction along Memorial Drive and a limited area of Magazine Beach grassed area Street view before transitioning to Horizontal Directional Drill (HDD). HDD Entry • HDD minimizes distu
Slide 17: Top Routes in Brighton Study Area
Top Routes in Brighton Study Area HDD Exit at Allston Multimodal Site Approximate Location of HDD Exit on Allston Multimodal Project Site x Magaz ine Route B2A Beach HDD Ent ry Route B2AN • The HDD exit would be located on the Allston Multimodal Project Site, within an area that is presently disturb
Slide 18: HDD Beneath Charles River
HDD Beneath Charles River Conceptual Profile View Allston Multimodal Project Magazine Beach at Site (HDD exit) Memorial Drive (HDD entry) Charles River ~30-feet +- below the bottom of the Charles River at its deepest point (TBD with detailed design) 13
Slide 19: Proposed Line Construction Sequencing
Proposed Line Construction Sequencing “The Train” Our work crews will be working in local streets for each phase of the Project: vault installation, trench digging, cable installation, cable pulling/cable splicing, and final restoration. Typical Construction Sequence: 1. Vault Installation 2. Saw cu
Slide 20: Anticipated Substation Upgrades
Anticipated Substation Upgrades Brighton (Boston), Kendall, Somerville Substations While engineering is still underway, we do anticipate limited work will be required at the remote substations. ▪ Line termination equipment will be needed at the Brighton, Kendall and Somerville substations. ▪ Current
Slide 21: Proposed Schedule
Proposed Schedule Working Toward In-Service Date of 2028 Pending receipt of all necessary permits and approvals, construction of the Project is anticipated to commence in Q2 2024, continuing over a 48-month period, with an overall targeted completion by the end of Q4 2028 Q4 2021 Q4 2023* Q2 2024 20
Slide 22: For More Information: ProjectInfo@eversource.com
For More Information: 1-800-793-2202 ProjectInfo@eversource.com You can also keep up-to-date on happenings in your community by providing your contact information via phone, email or by scanning the QR code with your smart device. 17
Slide 23: Eversource Energy
EVERSSURCE ENERGY