DTE Energy (Detroit Edison Company / DTE Gas Company) Rate Selection Guide
DTE Energy is Michigan's largest investor-owned utility, serving roughly 2.28 million electric and 1.34 million gas customers across southeast Michigan. For C&I customers, DTE offers hourly electric and daily gas interval data via the Energy Usage Portal and a multi-building Data Hub, plus EDI billing automation and partial retail electric choice through its Electric Choice program. DTE has not yet implemented formal Green Button Connect My Data, so third-party access relies on the Customer Consent Release Form.
DTE Energy (Detroit Edison Company / DTE Gas Company) Rate Schedule Comparison
| Schedule | Type | Rate | Best For |
|---|---|---|---|
| D3 (Secondary) | Energy + demand | Service charge + per-kWh + per-kW demand | Commercial / small business at secondary voltage |
| D4 (Large General) | Energy + capacity demand | Capacity demand ~$13.82/kW at transmission + per-kWh | High-load-factor large C&I with steady demand |
| D6 (Primary Supply) | Primary demand + energy | Demand ~$4.21/kW (primary) + per-kWh | Industrial customers owning transformation at primary voltage |
| D8 (Interruptible Primary) | Interruptible demand + energy | Discounted demand for curtailable load | Primary customers that can shed load on notice |
| DTE Gas GS-1 / GS-2 | Firm distribution + GCR | Customer charge + per-Mcf distribution + GCR | Commercial/industrial firm gas; transport for large volumes |
Market Overview
Michigan permits partial retail electric choice, capped at 10% of DTE's prior-year retail sales. Most customers receive bundled regulated service; a limited number may purchase generation from Alternative Electric Suppliers (AES) while DTE provides delivery. Gas is fully regulated.
Need to pull your actual usage data to compare rates? See the DTE Energy (Detroit Edison Company / DTE Gas Company) Data Access Guide →
Current Rate Schedules
DTE Electric serves southeast Michigan C&I customers under MPSC Rate Book for Electric Service No. 1. Commercial/industrial schedules split by service voltage: secondary General Service (D3) and Large General Service (D4) for most commercial and small-industrial loads, and primary-voltage schedules D6 (Primary Supply), D8 (Interruptible Primary) and D10 for larger industrial customers taking 50+ kW at primary, sub-transmission or transmission voltage. Demand-rate bills separate a capacity demand charge, a non-capacity demand charge, per-kWh energy and a fixed service charge, with a Power Supply Cost Recovery (PSCR) pass-through. DTE Gas serves commercial/industrial firm customers under General Service rates GS-1 and GS-2 (subject to Gas Cost Recovery, Rule C7), with large-volume transportation/end-user transport options. Current electric rates reflect MPSC Order U-21534 (effective Feb 6, 2025) and the February 2026 increase (U-21822 series).
Effective: February 19, 2026 · Full Tariff Book →
| Schedule | Type | Applicability | Structure | Rate |
|---|---|---|---|---|
| D3 — General Service (Secondary) | energy + demand (secondary) | Commercial / small-business customers at secondary voltage with low-to-moderate energy use. | Fixed service charge plus per-kWh energy and a per-kW demand charge; demand component scales with peak kW. Standard secondary commercial rate. | Per-kWh energy plus per-kW demand per MPSC Rate Book No. 1 (D-3 sheets)+ Per-kW demand charge (secondary) |
| D4 — Large General Service | energy + demand (large) | Larger commercial/industrial customers with higher, steady, predictable kW demand; available at secondary, primary or transmission voltage. | Service charge, per-kWh energy and a capacity demand charge (per kW); transmission-level service carries a capacity demand charge of about $13.82/kW. Lower energy rate offset by higher demand component for high-load-factor users. | Per-kWh energy plus capacity demand ~$13.82/kW at transmission voltage+ Capacity demand ~$13.82/kW (transmission); voltage-dependent |
| D6 — Primary Supply | demand + energy (primary) | Industrial and large commercial customers taking service at primary voltage (≥50 kW). | Service charge, per-kWh energy plus capacity and non-capacity demand charges. D6 primary demand component is about $4.21/kW; primary-voltage credit reflects customer-owned transformation. | Per-kWh energy plus demand; D6 primary demand ~$4.21/kW+ Capacity + non-capacity demand; ~$4.21/kW (D6 primary) |
| D8 — Interruptible Primary | demand + energy, interruptible | Primary-voltage customers (≥50 kW) who contract a portion of load as interruptible and curtail on DTE notification. | Primary demand/energy structure with a credit/discount for interruptible load that DTE can curtail during system peaks; rewards customers able to shed load. | Discounted demand/energy vs firm primary rates per Rate Book No. 1 (D-8)+ Reduced demand charge in exchange for interruptibility |
| D6.2 — Primary Educational Institution | demand + energy (primary, institutional) | Educational institutions at primary, sub-transmission or transmission voltage, minimum 50 kW. | Capacity demand charge of $10.34/kW plus a non-capacity demand charge of $3.99/kW, per-kWh energy and service charge. | Per-kWh energy plus demand charges+ Capacity $10.34/kW + non-capacity $3.99/kW |
| DTE Gas GS-1 / GS-2 — Commercial/Industrial Firm | firm distribution + commodity / transportation | Commercial (GS-1) and larger-volume commercial/industrial (GS-2, contract-limited) firm gas customers; transportation/end-user transport available for large volumes. | Fixed customer charge plus gas distribution charge per Mcf, with a separate Gas Cost Recovery (GCR) commodity charge (Rule C7). Large-volume GS-2 customers sign a time-limited contract; transportation customers procure their own gas supply. | Per-Mcf distribution charge per DTE Gas Rate Book (U-21291) plus GCR+ None (firm distribution); transportation has reservation/transport charges |
Rate Recommendations by Use Case
Multi-site commercial portfolio benchmarking
Aggregate hourly electric and daily gas data across buildings for ENERGY STAR benchmarking.
The DTE Energy Data Hub centralizes multi-building data and exports directly to ENERGY STAR Portfolio Manager, eliminating per-site manual pulls.
- Use the Data Hub for buildings with 6+ tenants to skip individual consent
- Schedule recurring exports for ongoing benchmarking
Industrial peak demand reduction
Identify and shave coincident peak demand using hourly interval data.
Demand charges are a major cost driver on primary service; interval data reveals the specific hours setting monthly peaks.
- Pull 13 months of hourly data from usage.dteenergy.com
- Evaluate LOADwatch interruptible credits for curtailable load
Consultant-managed bill automation
Set up authorized third-party access and EDI for automated bill processing.
DTE lacks a public API, so combining the Customer Consent Release Form with client-side EDI enrollment delivers the most reliable ongoing data feed.
- File the consent form early; allow 10 business days
- Enroll the client directly in DTE EDI for 810/820 automation
Evaluating retail electric choice
Assess whether generation supply from an Alternative Electric Supplier beats bundled DTE rates.
Michigan's 10% choice cap creates limited but potentially valuable generation savings for large loads with predictable usage profiles.
- Confirm capacity availability under the cap
- Compare AES offers against DTE bundled generation/supply
Historical Rate Trends
DTE Electric has secured a string of MPSC rate increases. December 2023 brought a $368M electric increase (~6.4% residential). January 2025 added a $217M electric increase. In February 2026 the MPSC approved a $242.4M electric increase (~4.1% residential; DTE had requested commercial +10.8% and industrial +5.4%). DTE Gas distribution rates for GS-1/GS-2 were updated under Case U-21291 (effective Nov 21, 2024, revised by rehearing March 13, 2025).
December 1, 2023
MPSC approved a ~$368M DTE Electric rate increase (cut >40% from request); ~6.4% residential.
~6.4% residential (commercial varies)January 1, 2025
MPSC approved a ~$217M DTE Electric rate increase (Order U-21534, effective Feb 6, 2025).
Electric increase (commercial varies)February 19, 2026
MPSC approved a $242.4M DTE Electric rate increase (~4.1% residential; request had been +10.8% commercial / +5.4% industrial).
~4.1% residential; ~10.8% requested commercialNovember 21, 2024
DTE Gas GS-1/GS-2 distribution charges updated under MPSC Case U-21291 (revised by rehearing March 13, 2025).
Gas distribution updateOverall trend: Rising — multiple consecutive electric increases 2023-2026 plus gas distribution updates.
Next expected change: Further DTE Electric rate filings expected (the company sought $574M in its latest case, of which $242.4M was approved in Feb 2026), plus ongoing PSCR/GCR cost-recovery factors.
Cost Optimization Strategies
DTE C&I savings hinge on matching service voltage and schedule to the load, managing the demand peaks that drive capacity/non-capacity charges, and using interruptible options where load is curtailable.
Reduce peak demand
For: D3, D4, D6 demand-rate customers
Limit coincident peak kW through staggered startups and load controls to cut both capacity and non-capacity demand charges (e.g., D6.2's combined $14.33/kW).
Take primary-voltage service
For: Industrial customers ≥50 kW able to own transformers
Large loads owning transformation can move to D6/D10 primary schedules for a voltage credit versus secondary D3/D4.
Enroll curtailable load on D8 Interruptible
For: Primary customers with sheddable load ≥50 kW
Contract a portion of load as interruptible under D8 for reduced demand charges, curtailing on DTE notice.
Right-size the rate schedule
For: All C&I electric accounts
Compare D3 vs D4 (and secondary vs primary) using DTE business pricing tools to ensure the load factor matches the chosen demand structure.
Demand response / gas transportation
For: Curtailable electric loads; large-volume gas users
Join DTE demand response programs for peak-event credits; large gas users can buy supply on transportation rates rather than bundled GCR.
To implement these strategies, you need your 15-minute interval data. Learn how to download DTE Energy (Detroit Edison Company / DTE Gas Company) interval data →
Deregulated Market Shopping
Michigan's partial retail choice (Electric Choice) lets a limited pool of customers buy generation from Alternative Electric Suppliers while DTE provides delivery. The program is capped at 10% of DTE's prior-year retail sales, so availability is constrained and often waitlisted.
How to Compare DTE Energy (Detroit Edison Company / DTE Gas Company) Suppliers
- 01Confirm capacity is available under the 10% Electric Choice cap
- 02Review the list of active Alternative Electric Suppliers and Marketers
- 03Compare generation offers and contract terms
- 04Enroll with a qualified supplier; DTE continues to provide delivery and billing
Contract Terms for DTE Energy (Detroit Edison Company / DTE Gas Company) Supply Agreements
- Generation supply only; DTE provides delivery
- Subject to the statewide 10% participation cap
- Switching governed by MPSC rules
Common Pitfalls When Shopping DTE Energy (Detroit Edison Company / DTE Gas Company) Rates
- Limited availability due to the 10% cap and waitlists
- Delivery charges remain regulated by DTE
- Compare supplier terms against bundled DTE rates carefully
Frequently Asked Questions
How do C&I customers get interval data from DTE?▾
Commercial and industrial customers access hourly electric and daily gas interval data through the Energy Usage Portal (usage.dteenergy.com) or the DTE Energy Data Hub for multi-building aggregation. Data is available for the past 13 months and exports to CSV, Excel, or XML.
Does DTE support Green Button Connect My Data?▾
No. DTE has not implemented Green Button Connect My Data (CMD). Customers can manually download interval data in standardized formats (functionally similar to Download My Data), and third-party automated access relies on the Customer Consent Release Form.
How does a consultant get authorized access to a customer's DTE data?▾
The customer completes a Customer Consent Release Form specifying the data categories and authorized third party, then submits it to DTE by email, mail, or fax. DTE processes it within 10 business days, after which the third party can access data via the portal or direct transmission.
What EDI transactions does DTE support?▾
DTE supports ANSI X12 810 (Invoice, outbound to customer) and 820 (Payment Order/Remittance Advice, inbound from customer). Enrollment is handled directly between the business customer and DTE via VAN or direct connection.
Is retail electric choice available to DTE customers?▾
Michigan offers partial retail electric choice capped at 10% of DTE's prior-year retail sales. A limited number of customers can buy generation from Alternative Electric Suppliers while DTE provides delivery; availability is often constrained or waitlisted.
How far back does DTE billing and usage data go?▾
DTE provides current plus the past 13 months of billing data, hourly electric interval data, and daily gas interval data.
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