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Siemens study: balanced 'reference' portfolio best fits Logan’s cost–renewables tradeoffs; city may need ~40 MW more to meet 2030 goal
Summary
Siemens PTI presented an integrated resource plan showing a middle 'reference' portfolio (about 205 MW additions) best balances cost, reliability and renewables; presenters said Logan would likely need roughly 40 MW of additional local renewable capacity to meet a 50% by‑2030 target when market purchases aren’t counted.
Siemens PTI presented an integrated resource plan (IRP) to the Logan City Council and two advisory boards on Feb. 15, outlining four candidate generation portfolios and the projected cost, capacity and emissions tradeoffs over a 20‑year planning horizon.
The consulting team said the IRP is meant as a roadmap, not a fixed procurement plan, and recommended a ‘‘reference’’ portfolio as the most balanced option between affordability, sustainability and reliability. ‘‘It’s a road map, but it’s also a living document,’’ a Siemens presenter said, urging periodic updates as market conditions and technology costs change.
Why it matters: Logan officials face both an internal target to increase renewable generation (presenters modeled a 50% renewable target by 2030 in the baseline scenario) and practical limits on how much renewable energy can be counted as Logan’s own when power is sold into—and bought from—regional markets. Presenters told the council the reference portfolio adds about 205 megawatts of supply (roughly 100 MW solar, 45 MW wind and 60 MW storage in the reference case) through the study horizon; a more aggressive candidate…
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