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ISO: decades of transmission investment; more upgrades and state‑funded projects needed to carry renewables
Summary
ISO New England told the committee the region has invested roughly $12.7 billion in transmission since 2002, expects about $1.4 billion more through 2028, and that future transmission—some state‑funded and some privately funded—will be essential to move large amounts of new renewable energy.
ISO New England staff told the Vermont committee on Jan. 23 that transmission investment has been central to relieving constraints, lowering out‑of‑market costs and enabling more competitive wholesale markets.
Sarah Adams said the region has invested about $12.7 billion in high‑voltage transmission since 2002 and that roughly $1.4 billion more is planned through 2028. She described two categories of…
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