Long Island Power Authority (PSEG Long Island) Rate Selection Guide
Long Island Power Authority (LIPA), operated by PSEG Long Island, is a New York public-power utility serving more than 1.1 million electric customers across Long Island and the Rockaways. For commercial and industrial energy teams it offers strong data access: universal AMI smart meters, free 15-minute interval data and CSV export via the MySmartEnergy portal, a dedicated business RMR portal, and a formal Letter of Authorization process for third-party data sharing. As a public authority that does not own generation, LIPA sets delivery rates while New York's competitive supply market (Long Island Choice) lets customers shop only for the power-supply portion.
Long Island Power Authority (PSEG Long Island) Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| Rate 280 – Small General Use | Commercial | Svc $0.56/day; delivery $0.1186-$0.1478/kWh + Power Supply Charge; no demand | Small commercial sites under ~7 kW demand |
| Rate 281 – Large General Use | Commercial | Svc $2.92/day; demand $20.38-$22.22/kW; delivery $0.0147-$0.0375/kWh + Power Supply Charge | Commercial customers 7-145 kW |
| Rate 285 – Large Multiple Periods (TOU) | Industrial | Svc $3.83-$5.20/day; peak demand up to $30/kW; energy $0.0071-$0.0489/kWh + Power Supply Charge | Large loads over 145 kW (mandatory TOU) |
| Rate 294 – Large TOU 4-hour peak | Commercial | Svc $2.92/day; peak demand $14.65-$20.19/kW; delivery $0.0088-$0.0578/kWh + Power Supply Charge | 7-145 kW customers who can avoid the 3-7 p.m. peak |
Market Overview
LIPA sets delivery rates as a public authority; customers cannot choose their delivery provider. Through the voluntary Long Island Choice program, eligible customers may select a competitive ESCO for their power supply while PSEG Long Island continues to provide and bill delivery service. A voluntary Green Choice program lets customers buy renewable attributes through a Green Marketer.
Need to pull your actual usage data to compare rates? See the Long Island Power Authority (PSEG Long Island) Data Access Guide →
Current Rate Schedules
PSEG Long Island commercial delivery rates separate a per-day service charge, per-kW demand charges (on larger and TOU rates), and per-kWh delivery/energy charges that vary by season (summer Jun 1-Sep 30 vs. winter) and, on TOU rates, by time of day. A separate, market-based Power Supply Charge (roughly 11 cents/kWh on standard rates) is added on top of the delivery charges below. The figures below are PSEG Long Island's published Common Commercial Electric Rates effective January 1, 2026, and reflect delivery & system charges only.
Effective: January 1, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| Rate 280 – Commercial, Small, General Use | commercial | Non-residential customers using under 2,000 kWh in two consecutive months or with estimated demand under 7 kW. | Per-day service charge plus seasonal per-kWh delivery charge; no demand charge. A separate Power Supply Charge applies. | Service $0.5600/day; delivery energy $0.1478/kWh summer (Jun 1-Sep 30), $0.1186/kWh winter (Oct 1-May 31), plus Power Supply Charge (~$0.11/kWh)+ None (no demand charge on Rate 280) |
| Rate 281 – Commercial, Large, General Use | commercial | Non-residential customers at/over 2,000 kWh in two consecutive months or estimated demand 7-145 kW. Demand ratchet applies. | Per-day service charge plus seasonal per-kW demand charge and seasonal per-kWh delivery charge. A separate Power Supply Charge applies. | Service $2.92/day; delivery energy $0.0375/kWh summer, $0.0147/kWh winter (secondary service), plus Power Supply Charge+ Secondary service per kW/month: $22.22 summer (Jun 1-Sep 30), $20.38 winter (Oct 1-May 31) |
| Rate 285 – Commercial, Large, Multiple Periods (TOU) | industrial | Non-residential customers whose demand has exceeded 145 kW in any two consecutive months. Mandatory time-of-use. | Per-day service charge (by voltage) plus three rate periods (off-peak, peak, intermediate) with per-kW demand and per-kWh energy charges. Summer peak is 10 a.m.-10 p.m. except Sunday. A separate Power Supply Charge applies. | Service $3.83-$5.20/day by voltage; peak energy $0.0489/kWh (secondary), intermediate $0.0311/kWh, off-peak $0.0071/kWh, plus Power Supply Charge+ Peak demand per kW: $30.00 secondary / $24.82 primary / $20.51 transmission; intermediate $13.03 / $10.95 / $8.98; off-peak none |
| Rate 284 – Commercial, Large, Multiple Periods (alternate TOU) | industrial | Optional alternative for customers qualifying for Rate 285 (demand over 145 kW); narrower, higher-priced peak window. | Per-day service charge (by voltage) plus three rate periods with higher peak demand charges and a tighter summer peak (weekdays noon-8 p.m.). A separate Power Supply Charge applies. | Service $3.83-$5.20/day by voltage; peak energy $0.0417/kWh (secondary), off-peak $0.0001/kWh, plus Power Supply Charge+ Peak demand per kW: $59.02 secondary / $49.44 primary / $36.96 transmission; intermediate $11.68 / $8.94 / $6.67 |
| Rate 294 – Commercial, Large, Time-of-Use (4-hour peak) | commercial | Optional TOU rate for large general-use customers (7-145 kW) with a four-hour 3-7 p.m. weekday peak and super off-peak overnight. | Per-day service charge plus super-off-peak / off-peak / peak periods with per-kW demand and per-kWh delivery charges; power supply varies by period. A separate Power Supply Charge applies. | Service $2.92/day; peak delivery $0.0578/kWh summer, off-peak $0.0375/kWh summer, super-off-peak $0.0225/kWh summer, plus period-adjusted Power Supply Charge+ Peak demand per kW: $20.19 summer, $14.65 other seasons; off-peak $9.64 summer / $9.03 other; super-off-peak none |
Rate Recommendations by Use Case
Small commercial site
Small storefront or office under roughly 7 kW demand.
Rate 280 has no demand charge and a low per-day service charge, so small low-demand sites pay mainly for energy plus the market Power Supply Charge.
- Track usage to stay under the 2,000 kWh / 7 kW threshold that triggers Rate 281
- Consider the Rate 292 TOU option if you can shift load to overnight super-off-peak
- Watch the monthly Power Supply Charge, which can exceed the delivery energy charge
Mid-size commercial building
Commercial customer with demand between 7 and 145 kW.
Rate 281 is the default in this demand band; Rate 294's 3-7 p.m. four-hour peak can lower cost for customers able to shift load. Both carry meaningful summer demand charges.
- Beware the demand ratchet — one summer spike sets a billed-demand floor for months
- Pull MySmartEnergy 15-minute data to find and shave peaks
- Model Rate 294 vs. 281 using your actual load shape
Large facility / industrial load
Customer with demand exceeding 145 kW (mandatory time-of-use).
Over-145 kW customers must take a TOU rate. Rate 285 spreads demand across peak/intermediate periods; Rate 284 offers a narrower peak window with higher peak demand charges that can pay off for customers who sharply curtail during the peak.
- Choose primary/transmission voltage where possible for lower per-kW demand charges
- Concentrate production in off-peak/intermediate hours
- Evaluate demand-response participation (CSRP/DLRP) for extra revenue
Multi-site portfolio data automation
Energy or sustainability team aggregating PSEG Long Island usage across many accounts.
LIPA has strong interval data: use free MySmartEnergy Connect Others for instant per-account interval access and CSV export, RMR for business demand detail, and LOA for billing data — with the IEDR platform expected to add automated API access.
- Use MySmartEnergy Connect Others (free, instant) for interval data across accounts
- Use a Letter of Authorization for billing data (7-10 business days; fees beyond 24 months)
- Track IEDR rollout for a future automated authorization portal and API
Historical Rate Trends
LIPA delivery rates are set by its Board through New York rate proceedings, while the separate Power Supply Charge fluctuates monthly with wholesale energy markets. PSEG Long Island publishes updated Common Commercial Electric Rates annually; the current edition took effect January 1, 2026.
January 1, 2026
PSEG Long Island published updated Common Commercial Electric Rates effective January 1, 2026, with current delivery & system charges for Rates 280, 281, 283/291, 285, 284, 292, and 294. The separate Power Supply Charge continues to reset monthly with wholesale market prices.
Annual updateOverall trend: Delivery rates adjust through periodic LIPA rate cases and decoupling/true-up mechanisms, while the monthly Power Supply Charge is the main source of bill volatility. The current commercial delivery rate schedule is effective January 1, 2026.
Next expected change: Annual Common Commercial Electric Rates update (next edition expected January 2027); IEDR-related tariff updates ongoing.
Cost Optimization Strategies
Because PSEG Long Island bills split into demand charges, seasonal delivery energy, and a market-based Power Supply Charge, the biggest C&I levers are reducing summer peak demand, shifting load off the afternoon/evening peak on TOU rates, and watching the demand ratchet on Rate 281.
Reduce summer peak demand
For: Demand-metered rates (281, 285, 284, 294)
Demand charges rise sharply in summer (Jun 1-Sep 30) and can reach roughly $30/kW on Rate 285 and up to $59/kW on Rate 284's peak. Peak-shaving with storage, staging, or demand response cuts the billed kW.
Shift load with a TOU rate
For: Qualifying large general-use and over-145 kW customers
Electing a TOU rate (294 or 284) and moving discretionary load off the afternoon/evening peak captures much lower off-peak and super-off-peak energy and demand pricing.
Mind the Rate 281 demand ratchet
For: Rate 281 customers (7-145 kW)
On Rate 281 the billed demand floor is set by 85% of the prior summer peak (70% in winter), so a single high summer spike inflates demand charges for up to 11 months. Avoiding one-off spikes protects the whole year.
Use free interval data to find savings
For: All C&I customers
MySmartEnergy 15-minute data (free, CSV export) reveals peak timing and load shape; the RMR portal adds demand and power-factor detail — the raw inputs for peak-shaving and rate-fit analysis.
To implement these strategies, you need your 15-minute interval data. Learn how to download Long Island Power Authority (PSEG Long Island) interval data →
Frequently Asked Questions
How do commercial customers get interval data from PSEG Long Island?▾
Through the free MySmartEnergy portal, which provides 15-minute, hourly, daily, and monthly consumption with weather correlation and one-click CSV export, plus 2+ years of history. Business customers can also use the RMR portal for additional demand and power-factor detail.
Can a consultant or aggregator access our data?▾
Yes. For interval data, the fastest path is MySmartEnergy Connect Others — free, instant, and revocable, but usage data only. For billing data (or formal recurring access), the customer submits a signed Letter of Authorization to BusinessCenterLI@pseg.com, with delivery in 7-10 business days.
Does PSEG Long Island offer a public API?▾
Not yet. There is no public, programmatic customer-data API today; access is via portals (MySmartEnergy, RMR), Connect Others, and the Letter of Authorization. New York's statewide IEDR platform, which LIPA joined in 2021, is expected to add an authorization portal and API for automated third-party retrieval.
Can commercial customers choose their electricity supplier?▾
Partially. Customers cannot choose their delivery provider — PSEG Long Island delivers all power for LIPA. Through the voluntary Long Island Choice program, eligible customers can buy the power-supply portion from a competitive ESCO while still paying PSEG Long Island for delivery.
How are large commercial customers charged for demand?▾
Larger rates (281, 285, 284, 294) bill a per-kW demand charge that rises in summer (Jun 1-Sep 30). For example, Rate 281 secondary demand is $22.22/kW in summer, Rate 285 peak demand reaches $30.00/kW (secondary), and Rate 284's peak demand reaches $59.02/kW (secondary).
Does PSEG Long Island support Green Button?▾
MySmartEnergy CSV export aligns with the NAESB REQ.21 / ESPI standard used by Green Button, but formal Green Button Alliance certification status is unconfirmed in public sources. Verify current status with PSEG Long Island before relying on certified Download My Data or Connect My Data.
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