WESTBOROUGH, Mass. — ISO-NE Director of Regional Planning Mike Henderson on Wednesday presented the schedule for stakeholder comments on the grid operator’s 2017 Regional System Plan, which are due July 24. The plan will be discussed at the August Planning Advisory Committee ahead of a Sept. 14 public meeting in Boston. The draft plan will be posted online by July 7.
“Our view is that the report should be viewed as a [critical energy infrastructure information] document,” Henderson told the PAC during a June 21 teleconference. “In past years, we have noted some, frankly, mistakes that the ISO made in the report where we may have inadvertently included some CEII materials, and as a draft document, that would present a major issue. … We’d hate to see something that does not reflect your [PAC members] input … put out in the public domain.”
Transmission planner Jon Breard presented an update on transmission projects and asset condition as part of the RSP drafting process. One participant asked if, based on the presentation, the growth in transmission spending was coming to an end in 2019.
“I’d be careful about ‘coming to an end,’” said Brent Oberlin, director of transmission planning. “It’s just what we have planned so far [is] really slowing down, and that’s our expectation going forward.” He added that the RTO must still complete reassessments for Maine, New Hampshire and central Massachusetts.
RTO will not Conduct Public Policy Tx Study for 2017
Oberlin presented ISO-NE’s conclusion that no federal or state public policy requirements are currently driving transmission needs, precluding the need for a special study on the subject this year. The RTO’s position aligns with a similar assessment submitted by the New England States Committee on Electricity (NESCOE) last month. (See ISO-NE: Won’t Override States on Public Policy Tx Needs.)
A May 16 letter from the Conservation Law Foundation asked the RTO to conduct the analysis despite NESCOE’s conclusion. NESCOE responded that ISO-NE should evaluate potential projects only after states have indicated transmission needs resulting from their policies.
Paul Dumas of Avangrid asked when the Tariff stipulates that the RTO must start another public policy process.
“At least every three years,” Oberlin said. “So the farthest that we would go out would be initiating the process in 2020. I think we’re going to keep an eye on where the states are with [requests for proposals] and things like that and make our determination if we would go earlier.”
Eversource to Replace ‘Vintage 1950’ Equipment
Eversource Energy’s George Wegh presented CEII material on the utility’s work to modernize several outdated substation control houses in its Eastern Massachusetts service territory. Wegh apologized for informing the PAC after the work had already started. He said Eversource would fix whatever internal communications problem created the lapse in planning protocol.
Two of the control houses being refurbished are “vintage 1950” and still use some of the original equipment, including analog meters and electromechanical relays.
Woodpecker Woes on 345-kV Lines in Eastern Mass.
Eversource’s Chris Soderman presented evidence of woodpecker damage and decaying support structures along a 345-kV line in Eastern Massachusetts and similar problems on the Southern Connecticut Loop, where the company will not only replace structures but install optical ground wire to enhance communications and reliability.
The company will replace with steel approximately a fifth of the 262 wooden structures along the 29-mile Northfield-to-Ludlow line in Massachusetts. The estimated $8 million cost includes installing new hardware and insulators.
Along the Connecticut line, which runs about 38 miles, Eversource will spend an estimated $68 million to replace 258 structures, many of which have decaying, laminated wood cross arms. Soderman emphasized that the light-duty weathering steel poles being installed on both projects were not custom ordered but off-the-shelf equipment.
National Grid Implements Reliability Scheme on Tx Circuits
Jack Martin of National Grid presented the utility’s plans to install dual high-speed protection systems on 45 major transmission circuits over the next decade to meet standards set by the Northeast Power Coordinating Council.
NPCC Directory 1 mandates that all New England transmission owners meet the performance reliability requirements on Bulk Electric System elements by Sept. 10, 2025.
National Grid will pursue a five-stage rollout and estimates the cost for Phase 1 at $1.8 million. The company expects substantially higher costs for the ensuing phases, which include significant installation of optical ground wire and a number of control house rebuilds. The utility has started conceptual engineering for the other four phases and will update the PAC once it has estimated the costs.
— Michael Kuser