Illustrative Case: Upstate NY Tier 3 Cultivator Meets OCM Energy Rules Before PowerScore Sunset

The facility and starting situation

Assume a Tier 3 indoor cultivator licensed in Onondaga County on a National Grid account in NYISO Zones C through F [ngrid-upstate-service-rates]. The license covers 22,000 square feet of flowering canopy, which sits below the Tier 3 cap of 25,000 square feet [ny-9nycrr-120-3]. OCM reported 260 adult-use cultivator licenses statewide as of May 2026, excluding microbusinesses that may also grow [ny-ocm-ccb-release-2026-06]. This operator energizes in a former warehouse outside Syracuse with eight flower rooms, two veg rooms, and a drying hall.

At buildout the team spec'd double-ended HPS at roughly 1.7 micromoles per joule at the lamp. That met the lower Tier 1 and Tier 2 threshold but not the 2.2 micromoles per joule rule that applies to Tier 3 cultivators by first renewal [ny-9nycrr-125-1]. Dehumidifiers ran standard refrigerant cycles without the 75 percent heat recovery the rule prefers for larger tiers [ny-9nycrr-125-1]. No interval meter was installed; the utility billed on a monthly read.

Upstate New York averages 6,001 heating degree days and 618 cooling degree days [noaa-cag-new-york]. Winter heat rejection from lighting is the main HVAC load. Peak demand hit 285 kW in January when every flower room ran 12-hour photoperiods and makeup air units fought −10 °F outdoor air. The account sat in National Grid SC-2 Demand, which carries an $18.93 per kW delivery demand charge on the service-rates page opened September 11, 2026 [ngrid-upstate-service-rates].

What the baseline bills showed

The table mixes cited tariff rates with assumed usage. Only the rates and regulatory thresholds are facts; kWh, kW, and dollar totals are inputs for this example.

Line item	Assumption or rate	Monthly (winter)	Monthly (summer)	Notes
Flower lighting (HPS)	220 kW on 12 h/day	80,300 kWh	80,300 kWh	Assumed load
Veg and house	35 kW on 18 h/day	19,110 kWh	19,110 kWh	Assumed load
HVAC and dehumid	95 kW winter / 110 kW summer avg	68,400 kWh	79,200 kWh	Assumed load
Measured peak demand	285 kW / 260 kW	285 kW	260 kW	Sets SC-2 Demand
Delivery demand charge	$18.93 per kW [ngrid-upstate-service-rates]	$5,395	$4,922	Delivery only
Supply (utility default)	Assume 8.2 cents per kWh	~$13,800	~$14,600	Modeled input
Approximate total		~$32,000	~$33,000	Excludes taxes and riders

Annualized delivery demand alone was about $63,000: five winter months at $5,395 plus seven summer months at $4,922. At the EIA June 2026 New York commercial average of 23.56 cents per kWh on roughly 1.35 million kWh, the all-in spend would land near $318,000 [eia-epm-5-6-a]. The operator had budgeted for energy but not for OCM's parallel compliance clock.

Under 9 NYCRR 123.4(g), cultivators must track energy, water, on-site generation, and waste monthly, with annual resource reporting to OCM [ny-9nycrr-125-1]. PowerScore was the required benchmarking platform through August 31, 2026 for anyone licensed to cultivate on or before December 31, 2025 [ny-ocm-sustainability]. OCM then discontinued PowerScore on September 4, 2026 [ny-ocm-sustainability]. The operator had uploaded partial data but had not reconciled fixture specs to the efficacy rule.

What changed

Four workstreams ran from January through August 2026.

Fixture swap to meet 2.2 μmol/J. The team replaced HPS in six flower rooms with LED fixtures rated 2.35 micromoles per joule at the lamp, documented in manufacturer LM-79 reports. Two rooms stayed on HPS until the next harvest cycle to avoid crop disruption. NYSERDA's FlexTech program funded a cost-shared study that sized HVAC reduction from lower heat load [nyserda-lighting]. National Grid's Large Business efficiency track contributed prescriptive rebates on qualifying LED and controls [ngrid-upstate-ee].

Interval metering and monthly logs. An interval meter was installed and tied to a controller that exports 15-minute kWh and peak kW. Staff built a spreadsheet matching OCM's monthly fields: grid kWh, peak kW, water gallons, waste pounds, and any on-site solar if added later [ny-9nycrr-125-1]. That habit mattered more after PowerScore sunset because OCM requires attestation within 30 days once a replacement platform launches [ny-ocm-sustainability].

Dehumidification upgrade. Three grow rooms received chilled-water dehumidifiers with heat recovery toward reheat, aligning with the 75 percent recovery option in 9 NYCRR 125.1 [ny-9nycrr-125-1]. Refrigerant GWP documentation was filed for the remaining packaged units.

Demand review before supply shopping. LED cut lighting load from 220 kW to 165 kW and lowered winter peak demand from 285 kW to 230 kW in the model. Only then did the operator request ESCO fixed-price quotes. See demand charges explained for why peak kW still drives the National Grid line item [ngrid-upstate-service-rates].

The math after

Assume LED and dehumid work cut winter peak demand to 230 kW and annual grid kWh from 1.35 million to 1.12 million. Rebate inputs are illustrative.

Line item	Before (winter month)	After (winter month)	Change
Peak demand	285 kW	230 kW	−55 kW
Delivery demand charge	$5,395	$4,354	−$1,041
Annual delivery demand	~$63,000	~$54,500	~−$8,500
Lighting kWh (flower)	80,300	58,000	−22,300 kWh
Modeled supply spend	~$165,000/yr at 8.2 cents	~$138,000/yr	~−$27,000
National Grid + NYSERDA rebates	$0	~$85,000 one-time	Assumed project aid
Modeled annual all-in	~$318,000	~$265,000	~−$53,000

The kWh drop drove supply savings. The 55 kW peak reduction drove delivery savings. At the EIA New York industrial average of 10.17 cents per kWh, the same kWh stack would look cheaper on paper [eia-epm-5-6-a], but National Grid still bills SC-2 Demand on peak kW [ngrid-upstate-service-rates]. Confirm your class with the utility before you quote ROI to investors.

Fixture payback in this model: assume $420,000 capital, $85,000 in rebates, and $53,000 annual savings. Simple payback is roughly 6.3 years on energy alone, faster if you include avoided OCM renewal risk from documented compliance.

What did not work

Waiting for a PowerScore extension. The operator asked OCM for more time in July 2026. No extension came; the platform closed September 4 [ny-ocm-sustainability]. Partial uploads had to be reconciled manually for future attestation.

Buying LEDs without efficacy paperwork. One vendor quoted "DLC listed" fixtures at 1.9 micromoles per joule. That fails the Tier 3 threshold [ny-9nycrr-125-1]. Only LM-79 at the lamp counted for the compliance file.

Skipping interval data during retrofit. Two months of overlapping HPS and LED load made the first PowerScore entry messy. The operator re-baselined after full cutover.

ESCO contract before metering. A broker quoted 7.9 cents per kWh fixed, but without interval history the operator could not verify load factor or size capacity pass-through correctly. They deferred signing until after August interval files were clean.

PowerScore annual filing cadence

New York OCM requires cultivators to report energy metrics through PowerScore on a defined schedule [ny-ocm-powerscore-guidance]. Supply switch changes who bills generation, not the meter data PowerScore uses. Keep interval and bill records aligned with reporting deadlines.

OCM renewal linkage

New York PowerScore reporting ties to license renewal conditions under OCM sustainability rules [ny-ocm-powerscore-guidance]. Supply switch documentation does not replace PowerScore entry. Keep meter data and supplier invoices aligned for annual filing even when supply price changes mid-year.

PowerScore data quality checks

Before OCM filing, reconcile utility bill total kWh to PowerScore entry for the same period [ny-ocm-powerscore-guidance]. Supply switch mid-year splits supplier invoices; use meter totals, not supplier-only subtotals, for compliance.

Mid-year supplier change in PowerScore

If supply switches July 1, annual PowerScore filing still uses calendar meter totals. Split supplier invoices are for accounting; compliance uses utility meter kWh [ny-ocm-powerscore-guidance].

OCM statement of findings risk

Missed PowerScore filings can trigger Statement of Findings under OCM rules [ny-ocm-powerscore-guidance]. Supply contract savings do not offset compliance risk. Assign a named owner for annual filing separate from procurement.

Named compliance owner for PowerScore

Assign a named owner for PowerScore filing separate from procurement. OCM treats missed reporting seriously [ny-ocm-powerscore-guidance]. Supply savings do not offset compliance gaps.

Lessons that transfer to other New York cultivators

Match fixture specs to your tier before you wire the room. Tier 3 through Tier 5 need 2.2 micromoles per joule by first renewal; Tier 1 and Tier 2 have until the second [ny-9nycrr-125-1] [ny-9nycrr-120-3]. Install interval meters early; monthly OCM tracking is not optional [ny-9nycrr-125-1]. Keep benchmarking data locally after PowerScore sunset [ny-ocm-sustainability]. Stack NYSERDA studies with utility rebates before capital hits the board [nyserda-lighting] [ngrid-upstate-ee]. Fix peak kW on National Grid SC-2 Demand before you lock supply [ngrid-upstate-service-rates]. Read the New York cultivation energy page and the FAQ on lowering grow bills.