VEIC presents interim municipal decarbonization plan; committee hears cost and timeline questions

VEIC (Vermont Energy Investment Corporation) presented preliminary findings of a municipal decarbonization master plan to the Northampton City committee, outlining a baseline of about 5,290 metric tons of CO2-equivalent per year for city operations and preliminary strategies that could reduce emissions by roughly 40 percent.

The presentation, funded and contracted through National Grid, focused on municipal buildings and city-run processes. Adam Sherman, managing consultant for VEIC, said the study is intended to satisfy a requirement for DOER’s Green Communities Program and to qualify Northampton for additional decarbonization grant funding while producing a practical action plan the city can use.

VEIC’s lead analyst, Christine White, said the team built a building inventory and used utility data to create a baseline. The inventory showed education buildings account for the largest floor area and the greatest share of municipal emissions; wastewater and water treatment processes were identified as high emitters but are being analyzed separately because those processes are measured differently than building energy use. "The education buildings also include multiple buildings in the vocational high school campus," White said, summarizing the inventory approach.

Nathan Mascolino of VEIC described on‑site visits to the city’s top energy-using properties and the typical measures the team recommends: conservation and optimization, energy-efficiency retrofits (especially controls and ventilation heat-recovery), fuel switching for domestic hot water to heat-pump water heaters, and electrification of space heating where feasible. For smaller buildings VEIC recommended air-source heat pumps plus heat‑pump water heaters and modest efficiency measures; larger education buildings will require more complex sequencing and, in some cases, staged replacements.

VEIC reported the following quantitative results from the interim analysis: a municipal baseline of about 5,290 metric tons CO2e per year (with scope 1 fuel combustion representing roughly 60 percent and electricity roughly 40 percent of that total); portfolio electrification scenarios that could reduce fossil fuel consumption by about 87 percent while increasing electricity use by approximately 22 percent; and modeled avoided emissions of about 2,100 metric tons CO2e (roughly a 40 percent reduction) when applying the recommended building measures (excluding wastewater/water process loads, which remain to be incorporated).

Committee members asked detailed questions about cost, sequencing and assumptions. Eric Winkler asked whether VEIC would present a business‑as‑usual trajectory showing how much grid decarbonization alone would lower emissions if the city took no additional action; Sherman said VEIC will prepare both a business‑as‑usual forecast and a scenario that quantifies the city’s proactive measures so the remaining gap is clear. "We can present this in two ways: a do‑nothing/business‑as‑usual trajectory and then quantify what the city needs to do proactively," Sherman said.

Committee members also asked whether VEIC would provide cost metrics. VEIC said the final report will include order‑of‑magnitude capital cost estimates, simple payback calculations and a cost-per‑metric‑ton of GHG reduction for proposed measures so the city can prioritize projects. VEIC noted that capital cost estimates will use regional data where available but that the numbers are intentionally order‑of‑magnitude and not final bid prices.

The group discussed refrigerant (fugitive) emissions in HVAC equipment. VEIC said refrigerant leakage is important but was not included as a primary scope element for this funded phase; VEIC and the committee agreed to note the issue in the final report and to recommend the city track refrigerant usage and prefer low‑global‑warming‑potential refrigerants in future procurements.

VEIC identified next steps and timing: finalize the greenhouse‑gas and economic analyses, fold in the wastewater/water treatment process analysis, and deliver a final action plan in roughly six weeks. VEIC will provide the committee with the slide deck and follow up on committee questions about grid capacity and cost details.

The presentation provided the committee with a clear set of next tasks — quantifying costs at order‑of‑magnitude level, incorporating process loads for water and wastewater, and showing both a business‑as‑usual forecast and a prioritized project list for capital planning. VEIC and city staff will continue coordination as the team finishes the final deliverable.