New York Cannabis Cultivation Energy: OCM Efficiency Rules, Load Profile, and Rate Classes

What OCM requires before the utility even sends a bill

Most states leave grow-room equipment to the operator. New York does not. 9 NYCRR 125.1 makes energy performance a condition of the cultivation license, and the deadlines are tied to your canopy tier [ny-9nycrr-125-1]. Tiers run from Tier 1 (up to 5,000 square feet of canopy) through Tier 5 (up to 100,000), and you hold one license for one cultivation type and one tier [ny-9nycrr-120-3].

Requirement	Who	Threshold	Deadline
Horticultural lighting efficacy	Tier 3, 4, 5 cultivators; Registered Organizations	At least 2.2 micromoles per joule (PPE) measured at the lamp	First license renewal [ny-9nycrr-125-1]
Horticultural lighting efficacy	Nurseries, Tier 1 and 2, cooperatives, microbusinesses	At least 1.7 micromoles per joule at the lamp	Second license renewal [ny-9nycrr-125-1]
Dehumidification	Indoor and mixed-light licensees	Stand-alone units at least 1.77 L/kWh (8 cubic feet or less) or 2.41 L/kWh (larger); or integrated HVAC / chilled-water systems with at least 75 percent heat recovery; desiccant allowed where a 50 F or lower dew point is needed	Same tier schedule as lighting [ny-9nycrr-125-1]
Refrigerants	Indoor cultivators	20-year global warming potential of 10 or less, unless an approved leak-management plan is on file	Same tier schedule [ny-9nycrr-125-1]
Interval metering	All indoor and mixed-light licensees	At least one interval meter sufficient to capture and track energy use	Ongoing [ny-9nycrr-125-1]
Primary energy source	Tier 3, 4, 5 and Registered Organizations	No on-site fossil-fuel combustion as the primary source; emergency backup excepted	First renewal [ny-9nycrr-125-1]
Resource tracking	All cultivators	Monthly tracking of energy, water, on-site generation, and waste; annual reporting to OCM under 9 NYCRR 123.4(g)	Ongoing [ny-9nycrr-125-1]

The 2.2 figure is the one that changes facility design. Double-ended HPS runs well under it, so a Tier 3 or larger grow is effectively an LED facility by its first renewal. The LED vs HPS page runs the fixture-level math; in New York, the retrofit is not optional, only the timing is.

The reporting piece is in flux. OCM required annual benchmarking through the PowerScore platform, due August 31, 2026 for anyone licensed to cultivate on or before December 31, 2025, then sunset PowerScore on September 4, 2026 [ny-ocm-sustainability]. Licensees who missed the deadline sign an attestation that they will report within 30 days of a replacement platform becoming available [ny-ocm-sustainability]. Whatever replaces it will want the same inputs: monthly kWh, kW, water, and waste by month. Keep them in a spreadsheet now.

The load profile of a New York indoor grow

A flowering room is a lighting load with an HVAC load attached. In New York the HVAC side splits by geography. Statewide 1991-2020 normals are 6,001 heating degree days and 618 cooling degree days [noaa-cag-new-york], but the state file's own note is that those averages overstate cooling for the Adirondacks and understate it for New York City and Long Island [noaa-cag-new-york].

Upstate (National Grid, NYSEG, RG&E). For most of the year the outdoor air is cold enough that the room's problem is getting rid of lighting heat, not adding heat. That favors HVAC with economizer capability and, more to the point for compliance, integrated or chilled-water systems with heat recovery, which the OCM rule already pushes you toward [ny-9nycrr-125-1]. Recovered heat can warm veg rooms and drying rooms in January instead of buying gas, which also keeps a Tier 3 or larger grow clear of the fossil-fuel primary-source clause.

Downstate and the Hudson Valley (Con Edison, O&R, Central Hudson). Summer dew points in the 60s F are routine from June through September [noaa-cag-new-york]. Latent load rises, dehumidifiers run harder, and the facility's peak demand lands in the same July and August afternoons when NYISO Zone J and the G-J locality are tightest. That coincidence is why dehumidification efficiency matters twice here: once on the kWh line and once on the capacity line.

CO2. Supplementing to 1,200 ppm or so is standard in sealed rooms. Bottled or bulk CO2 is not an electric load, but a sealed room cannot economize with outside air, so the choice to run CO2 raises the mechanical cooling hours. The CO2 supplementation page walks the tradeoff.

Demand shape. Lights on a 12/12 flowering schedule produce a square wave: full demand for 12 hours, a fraction for 12 hours. Staggering rooms so half the flower canopy is lit at any time cuts the peak roughly in half without cutting kWh. In a demand-metered class that is the single largest controllable lever, and it is also what makes a grow's load look attractive to an ESCO.

Which delivery class a grow lands in

Utility	Class for a typical grow	What sets placement
Con Edison	SC 9 General Large	Any general-use account at 10 kW or above; SC 2 General Small stops at 10 kW. SC 9 bills a customer charge, per-kWh delivery, and per-kW demand, with voltage and time-of-day options [coned-rates]
National Grid upstate	SC-3 Large General, or SC-3A above 2,000 kW	SC-3 applies once demand exceeds 100 kW in each of the previous 12 months; the minimum charge covers the first 40 kW and per-kW charges above 40 kW vary by service voltage. Accounts under 100 kW that pass 2,000 kWh a month for four consecutive months sit on SC-2 Demand [ngrid-upstate-service-rates]
Central Hudson	SC 2 secondary measured demand over 50 kW, or SC 3 Large Power Primary	SC 2 splits into non-demand, secondary measured demand, secondary measured demand over 50 kW, and primary measured demand sub-rates; SC 3 is primary-voltage large power and SC 13 is transmission-level service [cenhud-rate-codes]
NYSEG	SC-3 or SC-7	Keyed to billing demand; accounts that cross the SC-7 threshold in repeated billing periods are reclassified. Current kW thresholds were not confirmed for this page

Two design consequences. First, a new grow that will exceed 100 kW should ask National Grid about SC-3 placement and service voltage at the service application stage rather than waiting twelve months of SC-2 Demand billing at $18.93 per kW [ngrid-upstate-service-rates]. Second, primary-voltage service carries a lower per-kW delivery charge at National Grid ($4.36 to $15.62 per kW across voltages on the current page) [ngrid-upstate-service-rates], and the same pattern holds at Central Hudson's primary sub-rate [cenhud-rate-codes]. Owning your transformer is a capital decision that pays back through delivery, not supply.

Read utility rate classes explained for the general mechanics, and demand charges explained for why a single 15-minute spike can set a month's delivery bill.

A worked example: Tier 3 indoor grow, statewide average rate

Every number below is an assumption unless it carries a citation. Assume:

• 25,000 square feet of canopy (the Tier 3 maximum) [ny-9nycrr-120-3], all indoor, split into six flowering rooms and two veg rooms.
• LED fixtures at the 2.2 micromoles per joule compliance level, installed at 35 W per square foot of flowering canopy: 20,000 square feet flowering x 35 W = 700 kW connected lighting. Veg at 5,000 square feet x 20 W = 100 kW.
• Flower rooms staggered so three of six are lit at any time (350 kW) and veg lit 18 hours (100 kW).
• HVAC and dehumidification at 60 percent of lit lighting load on average, or roughly 270 kW average, 24 hours a day.
• Fans, pumps, controls, and drying at 40 kW average.

Monthly energy: lighting 350 kW x 24 h x 30 days = 252,000 kWh, plus veg 100 kW x 18 h x 30 = 54,000 kWh, plus HVAC 270 kW x 720 h = 194,400 kWh, plus other 40 kW x 720 h = 28,800 kWh. Total about 529,000 kWh a month. Peak demand roughly 350 + 100 + 320 + 40 = 810 kW if HVAC peaks with the lights.

At New York's June 2026 average commercial price of 23.56 cents per kWh [eia-epm-5-6-a], that is about $124,600 a month, or roughly $1.5 million a year. At the industrial average of 10.17 cents [eia-epm-5-6-a], the same kWh cost $53,800 a month. The truth for a specific grow is somewhere between, and where depends on three things: the NYISO zone, the delivery class and voltage, and how the supply contract treats capacity.

The same facility without stagger, all six flower rooms lit together, would peak near 1,160 kW with no change in kWh. On National Grid's SC-3 the difference between 810 and 1,160 kW is 350 kW of billed demand every month, priced per kW by voltage [ngrid-upstate-service-rates]. On Con Edison SC 9 it is 350 kW of both delivery demand and, for a default-supply customer, the per-kW Demand Supply component that Con Edison uses to recover capacity [coned-rates].

How NYISO capacity shapes a grow's supply price

NYISO runs a locational installed-capacity market on top of its zonal energy market [nyiso-markets]. Load-serving entities, including any ESCO serving you, must buy capacity for the locality where you sit [nyiso-markets]. New York City and the G-J lower Hudson Valley locality price far above the rest of the state, so two identical grows in Yonkers and Syracuse will get different quotes with the whole gap in the capacity line.

For a grow this matters in contract terms. Ask every ESCO whether capacity is fixed in the price or passed through at cost. A passthrough on a flat load is often the cheaper long-run choice because the supplier is not charging a risk premium on a number you can manage, but only if you actually manage your coincident peak. The interval data page explains how to show a supplier your peak-hour contribution. Since OCM already requires the interval meter [ny-9nycrr-125-1], a New York grow has this data whether it uses it or not.

Rebates that offset the compliance capex

Con Edison's Commercial and Industrial program rebates lighting and controls, HVAC, motors, drives, chillers, and refrigeration, and runs a Custom track for equipment outside the prescriptive list; incentives are capped at 50 percent of project cost with per-project maximums, and pre-approval is required before installation [coned-ci-program]. National Grid upstate offers Large Business and Agriculture incentives and pays for demand response curtailment [ngrid-upstate-ee]. A grow that is replacing HPS to meet the 2.2 threshold should file for pre-approval before ordering fixtures, not after; Con Edison will not pay for equipment already installed [coned-ci-program].

Comparable Northeast grows face different rules. Massachusetts regulates grow energy through its own cannabis rules rather than an efficacy floor at the lamp; see the Massachusetts cultivation page. New Jersey grows share the PJM capacity problem but have no cannabis-specific equipment rule; see New Jersey cultivation. The number of New York sites facing all of this is larger than the 260 licensed cultivators, because the 327 microbusinesses and the medical Registered Organizations grow too [ny-ocm-ccb-release-2026-06].