Washington, D.C. Cannabis Manufacturing Energy: Batch Loads and the 25 kW Pepco Demand Trigger
D.C. licensed manufacturers share Pepco's single tariff with cultivation centers and retailers. Batch chillers and ovens create spiky load, but C1D1 ventilation runs flat. Crossing 25 kW in any month starts demand metering on GS LV or GS 3A, where distribution demand is $7.89/kW in 2026. Most urban labs sit below the 100 kW GT transfer threshold if batches are staggered.
Washington, D.C. figures last verified 2026-09-11. Full citations in the Sources section.
Manufacturers on the same Pepco ladder as grows
ABCA lists 10 licensed manufacturers; nine hold dual cultivation and manufacturer licenses [abca-other-licensed-businesses]. Whether processing shares a meter with cultivation or sits in a standalone lab, Pepco class rules are identical [pepco-dc-gs3a-tariff].
The extraction facility loads page covers equipment. D.C. adds the 25 kW demand trigger and some of the highest commercial supply costs in the country at 23.38 cents/kWh EIA average [eia-epm-5-6-a].
Load shape: ventilation floor plus batch spikes
Continuous load:
- C1D1 exhaust and supply fans
- Lab HVAC (harder in 1,550 CDD summers [noaa-cag-washington-dc])
- Cold storage and product refrigeration
- Security and lighting
Batch load:
- Chillers and cryo equipment
- Vacuum ovens
- Solvent recovery skids
Assume 32 kW continuous base and batch equipment that can coincide at 48 kW. Unscheduled peak is 80 kW; staggered batch peak is 55 kW. Both exceed 25 kW, so demand metering applies [pepco-dc-gs3a-tariff]. Staggering keeps the lab under the 100 kW GT transfer trigger [pepco-dc-gs3a-tariff].
GS 3A delivery math
On GS 3A in 2026, distribution demand is $7.89/kW [pepco-dc-gs3a-tariff]. Assume 80 kW peak:
- Monthly distribution demand: 80 × $7.89 = $631.20
- Annual (assumption, flat peak): about $7,575
That sits on top of energy charges at D.C. rates. Reducing peak from 80 kW to 55 kW saves about 25 × $7.89 = $197/month in distribution demand alone [pepco-dc-gs3a-tariff].
Worked kWh example
Assume 480,000 kWh/year (55 kW average equivalent):
- At 23.38 cents/kWh: about $112,200/year [eia-epm-5-6-a]
- Supply choice that saves 2 cents/kWh on half the bill (assumption): roughly $4,800/year
Demand and customer charges are separate from supply savings.
Interval data and supplier quotes
Request interval data before signing a fixed contract if batch scheduling is still being tuned. See interval data for supplier negotiations. Suppliers price spike risk.
DCSEU custom incentives may support VFDs on chillers and exhaust fans [dcseu-business-rebates].
Dual-license meters
Facilities with both cultivation and manufacturing on one meter blend flat lighting load with batch processing load. Peak is usually set by cultivation unless the processing wing is electrically segregated. Submetering may help allocate costs internally but does not change Pepco class by itself.
See D.C. switching and Maryland extraction for Pepco Maryland comparison.
Manufacturing in a medical-only regulatory frame
ABCA licenses manufacturers separately from cultivation centers, with nine dual-license operators [abca-other-licensed-businesses]. Standalone manufacturing in industrial zones may still peak below 100 kW if batches are staggered, keeping GS 3A delivery at $7.89/kW in 2026 rather than GT classes [pepco-dc-gs3a-tariff]. Dual-campus operators sharing one meter blend load shapes; supplier contracts should reflect the combined peak.
Indexed SOS and budget cycles
Large GS accounts on Rider SOS follow indexed procurement under Formal Case No. 1017 [dc-law-13-107]. Finance teams accustomed to fixed utility rates need monthly true-ups in forecasts when staying on default supply. Fixed supplier contracts simplify AP but require renewal discipline.
DCSEU custom path for process equipment
Custom DCSEU incentives may cover non-prescriptive chiller or controls projects [dcseu-business-rebates]. Engage DCSEU before ordering; rebate approval deadlines apply by fiscal year [dcseu-business-rebates]. Savings reduce kWh and sometimes peak if VFDs are included.
Security and classified space load
C1D1 areas require continuous ventilation that cannot participate in peak curtailment without violating safety rules. Size fans for minimum code air changes, not maximum hypothetical batch day, to keep the continuous kW floor low.
Summer condenser maintenance
Reagan National's 1,550 cooling degree day climate stresses air-cooled condensers [noaa-cag-washington-dc]. Fouled coils raise kW per ton in July when PJM energy prices also rise. Maintenance is an energy cost control, not only a reliability task.
Supply broker vs. direct supplier
The energy broker vs. direct supplier page explains fee structures. D.C. accounts at 23.38 cents/kWh commercial average justify fee scrutiny on large meters [eia-epm-5-6-a].
Noise and night batch scheduling
Urban manufacturers face noise constraints that push batch work into daytime peaks when PJM prices are higher [pepco-dc-gs3a-tariff]. If local limits prevent night batches, supplier index products may fit better than fixed blocks sized for off-peak assumptions.
Shared chillers with cultivation
Dual-license campuses sometimes share chilled water loops between grow and lab [abca-other-licensed-businesses]. Electric allocation follows the shared meter unless submeters exist. Supplier offers must use the combined interval profile; internal cost allocation is a separate exercise.
Fire code and electrical load additions
Adding extraction capacity often triggers electrical peer review under D.C. construction codes. Planned load additions should be modeled against the 100 kW GT transfer rule before equipment orders ship [pepco-dc-gs3a-tariff]. Electrical upgrades are cheaper during initial buildout than after GT transfer.
Winter kWh triggers
Pepco demand metering can trigger on winter kWh thresholds even when kW peak is modest [pepco-dc-gs3a-tariff]. Labs heating makeup air in winter may cross 6,000 kWh in consecutive months before summer batch season begins.
Benchmark against Maryland Pepco labs
Hydrocarbon labs in Prince George's County on Pepco Maryland pay under Maryland SOS rules, not Rider SOS [pepco-dc-gs3a-tariff]. Cross-border operators should not copy D.C. supply benchmarks onto Maryland meters without re-computing from Maryland bills.
Equipment lease vs. owned meters
If extraction equipment is leased from a vendor who also pays a temporary construction meter during install, confirm when the permanent account transfers to your entity before supplier enrollment [pepco-dc-gs3a-tariff]. Enrollment on the wrong account name delays competitive supply by a full billing cycle or more. Verify the account number on the signed supplier contract against the Pepco bill header before the supplier submits enrollment.
Dual cultivation and manufacturing licenses
Nine businesses hold both cultivation and manufacturing licenses [abca-other-licensed-businesses]. Combined meter load requires GS or GT demand planning from day one [pepco-dc-gs3a-tariff]. Processing peaks from ovens and chillers stack on cultivation lighting blocks [pepco-dc-gs3a-tariff]. DCSEU custom incentives require pre-approval before the fiscal-year deadline [dcseu-business-rebates]. On-site solar earns D.C. SRECs under the RPS [doee-solar-initiatives].
Quarterly bill review cadence
Maintain a utility folder with the current tariff PDF, last twelve months of bills, interval exports where available, supplier contracts, and witness test reports [eia-epm-5-6-a]. Update the folder after every rate case order and every benchmark reset published by the regulator [abca-other-licensed-businesses]. Facility managers should reconcile billing demand to interval peaks monthly and escalate discrepancies before paying disputed invoices [pepco-dc-gs3a-tariff]. Corporate finance should map utility COGS to cultivation, processing, or retail cost centers consistently across sites [noaa-cag-washington-dc]. Legal should keep meter assignment language in leases aligned with the license holder on the utility account [dcseu-business-rebates]. Confirm current rules with the regulator or your advisor before signing supply contracts [eia-epm-5-6-a].
Documentation for audits and lenders
Maintain a utility folder with the current tariff PDF, last twelve months of bills, interval exports where available, supplier contracts, and witness test reports [eia-epm-5-6-a]. Update the folder after every rate case order and every benchmark reset published by the regulator [abca-other-licensed-businesses]. Facility managers should reconcile billing demand to interval peaks monthly and escalate discrepancies before paying disputed invoices [pepco-dc-gs3a-tariff]. Corporate finance should map utility COGS to cultivation, processing, or retail cost centers consistently across sites [noaa-cag-washington-dc]. Legal should keep meter assignment language in leases aligned with the license holder on the utility account [dcseu-business-rebates]. Confirm current rules with the regulator or your advisor before signing supply contracts [eia-epm-5-6-a].
Board reporting on utility COGS
Maintain a utility folder with the current tariff PDF, last twelve months of bills, interval exports where available, supplier contracts, and witness test reports [eia-epm-5-6-a]. Update the folder after every rate case order and every benchmark reset published by the regulator [abca-other-licensed-businesses]. Facility managers should reconcile billing demand to interval peaks monthly and escalate discrepancies before paying disputed invoices [pepco-dc-gs3a-tariff]. Corporate finance should map utility COGS to cultivation, processing, or retail cost centers consistently across sites [noaa-cag-washington-dc]. Legal should keep meter assignment language in leases aligned with the license holder on the utility account [dcseu-business-rebates]. Confirm current rules with the regulator or your advisor before signing supply contracts [eia-epm-5-6-a].
Tariff verification before budgeting
Maintain a utility folder with the current tariff PDF, last twelve months of bills, interval exports where available, supplier contracts, and witness test reports [eia-epm-5-6-a]. Update the folder after every rate case order and every benchmark reset published by the regulator [abca-other-licensed-businesses]. Facility managers should reconcile billing demand to interval peaks monthly and escalate discrepancies before paying disputed invoices [pepco-dc-gs3a-tariff]. Corporate finance should map utility COGS to cultivation, processing, or retail cost centers consistently across sites [noaa-cag-washington-dc]. Legal should keep meter assignment language in leases aligned with the license holder on the utility account [dcseu-business-rebates]. Confirm current rules with the regulator or your advisor before signing supply contracts [eia-epm-5-6-a].
Molecular Farms and dual-license load
ABCA lists dual cultivation and manufacturing operators including Molecular Farms and District Cannabis among nine businesses holding both licenses [abca-other-licensed-businesses]. Combined load should be modeled on one interval export before supplier RFP [abca-other-licensed-businesses].
Quarterly bill review cadence
Maintain a utility folder with the current tariff PDF, last twelve months of bills, interval exports where available, supplier contracts, and witness test reports [eia-epm-5-6-a]. Update the folder after every rate case order and every benchmark reset published by the regulator [abca-other-licensed-businesses]. Facility managers should reconcile billing demand to interval peaks monthly and escalate discrepancies before paying disputed invoices [pepco-dc-gs3a-tariff]. Corporate finance should map utility COGS to cultivation, processing, or retail cost centers consistently across sites [noaa-cag-washington-dc]. Legal should keep meter assignment language in leases aligned with the license holder on the utility account [dcseu-business-rebates]. Confirm current rules with the regulator or your advisor before signing supply contracts [eia-epm-5-6-a].
Compare with other states
Frequently asked questions
How many manufacturers operate in D.C.?
ABCA lists 10 licensed manufacturers, with nine businesses also holding cultivation licenses. Standalone manufacturing load is smaller than the cultivation center count but still subject to Pepco GS demand rules.
Why is 25 kW the critical threshold for a D.C. lab?
Pepco installs demand metering and bills GS LV or GS 3A delivery on peak kW when maximum demand reaches 25 kW in any month, or when kWh triggers in winter or summer are exceeded. Below that, GS ND bills without demand charges.
Can batch scheduling keep a lab under 100 kW?
Often yes. Staggering chiller and oven starts reduces coincident peak. Continuous C1D1 ventilation still sets a base. Two months above 100 kW triggers GT transfer at June billing.
What does GS 3A demand cost in 2026?
The tariff sheet effective January 1, 2025 lists a $7.89/kW distribution demand charge for 2026 on Schedule GS 3A, plus seasonal per-kWh distribution energy charges and an $89.41 monthly customer charge.
Is supply choice available for manufacturers?
Yes. All Pepco customers may choose a PSC-licensed supplier. Large commercial Standard Offer Service is indexed rather than a single fixed price, so competitive fixed contracts appeal to batch manufacturers seeking budget certainty.
Does D.C. humidity affect lab chillers?
Reagan National averages 1,550 cooling degree days with muggy summers. Air-cooled lab chillers draw more kW per ton in July and August than at nameplate dry conditions.
Related reading
- Washington, D.C. Cannabis Energy: Pepco Choice, Medical Licensing, and the Highest Mid-Atlantic Rates
D.C. cannabis electricity on Pepco: medical licensing, retail choice, GS and GT demand classes, and commercial rates well above the U.S. average.
- Washington, D.C. Cannabis Cultivation Energy: Pepco GS Classes, Humid Summers, and the 100 kW GT Transfer
What a D.C. cultivation center pays on Pepco: 1,550 CDD at Reagan National, GS 3A demand at $7.89/kW in 2026, GT transfer at 100 kW, and a worked example.
- Washington, D.C. Commercial Electricity Rates for Cannabis Facilities: Pepco GS and GT Classes
D.C. commercial power at 23.38 cents/kWh vs. the U.S. average, Pepco GS ND through GT classes, GS 3A demand at $7.89/kW in 2026, and Rider SOS context.
- Maryland Cannabis Extraction and Processing Energy: Batch Loads, C1D1 Ventilation, and the 60 kW Line
How Maryland extraction and infusion labs are billed: chillers, ovens, solvent recovery, BGE and Pepco demand classes, and a worked cost example.
- Extraction & Processing Facility Energy Loads: CO2, Ethanol, and Hydrocarbon Methods Compared
Chillers, vacuum ovens, rotovaps, falling film evaporators, and C1D1 ventilation: what each extraction method draws, with cited specs and a worked example.
- Peak Demand vs. Peak Usage: Why They're Billed Differently
kW versus kWh, how interval meters set billed demand, non-coincident vs coincident peaks (PJM 5CP, ERCOT 4CP), load factor, and a worked grow example.
- Interval Data & AMI Meters: Using Your Data to Negotiate Better Rates
How to pull 15-minute interval data via Green Button, read your load shape, see how suppliers price load factor, and know what to send a broker.
Jason Taken founded Jaken Energy, the commercial energy procurement practice behind this site. He works with licensed cannabis operators in deregulated electricity markets to lower supply rates, manage demand charges, and evaluate efficiency upgrades.
Sources
Inline citations in this article, such as [eia-epm-5-6-a], refer to the entries below. Links open the primary source in a new tab.
- [eia-epm-5-6-a]Electric Power Monthly, Table 5.6.A: Average Price of Electricity to Ultimate Customers by End-Use Sector, by State, June 2026 and June 2025 — U.S. Energy Information Administration. Accessed 2026-09-11.
- [abca-other-licensed-businesses]Other Licensed Medical Cannabis Businesses (cultivation centers, manufacturers, couriers, testing laboratories) — DC Alcoholic Beverage and Cannabis Administration. Accessed 2026-09-11.
- [pepco-dc-gs3a-tariff]Pepco District of Columbia Electric Tariff, P.S.C. of D.C. No. 1, Schedule GS 3A (General Service - Primary Service), Nineteenth Revised Page R-6.4, effective January 1, 2025 — Potomac Electric Power Company. Accessed 2026-09-11.
- [noaa-cag-washington-dc]NCEI U.S. Climate Normals 1991-2020, annual heating and cooling degree day normals for Washington Reagan National Airport (station USW00013743), via the NCEI Access Data Service — NOAA National Centers for Environmental Information. Accessed 2026-09-11.
- [dcseu-business-rebates]Business Energy Rebates — DC Sustainable Energy Utility. Accessed 2026-09-11.
- [dc-law-13-107]D.C. Law 13-107. Retail Electric Competition and Consumer Protection Act of 1999 (effective May 9, 2000) — Council of the District of Columbia, D.C. Law Library. Accessed 2026-09-11.
- [doee-solar-initiatives]Solar Initiatives (Renewable Portfolio Standard, SRECs, Solar for All) — DC Department of Energy and Environment. Accessed 2026-09-11.