Use this guide
Choose the questions relevant to your situation. Expand each answer, save the checklist and request written clarification where evidence is missing.
Questions homeowners ask
Is DTE outflow the same as total solar generation?
No. DTE’s bill letter distinguishes total system generation from the portion exported. DTE records inflow and outflow, not total generation.
Source: DTE Electric: distributed generation bill letter. Reviewed 2026-10-06.
Does an outflow credit use the entire retail electricity price?
DTE’s letter describes the attached rate schedule’s power-supply component, including Power Supply Cost Recovery. Ask for the current applicable calculation.
Source: DTE Electric: distributed generation bill letter. Reviewed 2026-10-06.
Can credits offset every electric charge?
DTE’s letter says outflow credits apply to electric charges except securitization charges. Retain the bill’s charge labels rather than assuming a zero balance.
Source: DTE Electric: distributed generation bill letter. Reviewed 2026-10-06.
Is a credit bank cash I can withdraw at any time?
No. DTE describes credits carried forward at the same premises, without expiry or ordinary withdrawal or transfer; contract-end and service-end exceptions apply.
Source: DTE Electric: distributed generation bill letter. Reviewed 2026-10-06.
Does DTE’s solar calculator promise my actual financial result?
No. DTE says its calculator uses assumptions and averages that do not fully reflect individual load profiles or circumstances and are not a guarantee.
Source: DTE Energy: rooftop solar and private generation. Reviewed 2026-10-06.
Should I tell DTE before adding battery storage?
Yes. DTE directs customers to contact it about storage and program eligibility. Its Rider 18 guidance does not permit battery exports.
Source: DTE Energy: rooftop solar and private generation. Reviewed 2026-10-06.
Why should I question a proposal that uses an old Michigan sizing limit?
The MPSC describes PA235 changes, including eligible generation up to 110% of the previous 12 months’ consumption, and updated utility tariffs approved March 13, 2025.
Source: Michigan PSC: distributed generation updates. Reviewed 2026-10-06.
Can I operate just because a contractor says installation is complete?
The MPSC says proper utility interconnection is required before operation. Ask the utility’s interconnection staff about your project’s process and actual status.
Source: Michigan PSC: distributed generation updates. Reviewed 2026-10-06.
Which records should I request if a model and my bill disagree?
Ask for the attached rate schedule, accepted program, reporting periods, credit-bank movement and assumptions used in the model. Keep the original records and document missing information. Compare actual payments separately from forecasts, including any financing payments. A different result does not by itself establish an equipment defect or misrepresentation.
What can a site survey establish for this review?
A survey can help document relevant site conditions within its agreed scope. Ask Solar Survey AI to confirm available services and which observations or estimates the deliverable includes. A site assessment does not determine DTE billing, enroll a customer or authorize operation. Connected homeowner monitoring and free remote diagnosis remain coming soon.
Your decision checklist
- Confirm DTE Electric is the utility on your actual bill.
- Retain the accepted rider and attached rate schedule.
- Keep generation, inflow and outflow separate.
- Match billing and app dates before comparing totals.
- Track opening credits, new credits and amounts used.
- Ask about excluded charges and service-end treatment.
- Confirm applicable sizing and storage terms before a change.
- Retain the utility’s operating authorization and written responses.
Save or print this guide from your browser. Keep completed records privately.
Continue your research
Reconcile the program, period and credit bank
| Record | What to compare |
|---|---|
| Program identity | Accepted rider, attached rate and dated utility confirmation |
| Meter boundaries | App generation, utility inflow and utility outflow |
| Period alignment | Opening and closing dates, missing or partial readings |
| Credit movement | Opening balance, additions, applications and closing balance |
| Full payment picture | Utility amount, separate finance obligations and forecast exclusions |
| Pending change | Storage, account or equipment change and written next step |
Example: a proposal uses annual household consumption, while the bill separates peak and off-peak entries. Request the model’s time-period assumptions and compare matching records. An annual total alone does not show how the household used electricity during each billing interval.
Example: a household sees a growing credit bank and expects an immediate cash payment. Keep the balance record and ask DTE which terms govern the accepted account, including a planned move. Do not record a credit balance as money already received.
This resource concerns DTE Electric, not every Michigan utility. Confirm the currently accepted rider, attached rate and project terms; illustrative utility bills are not current price quotes. The linked DTE letter’s title refers to Rider 19 while its body describes Rider 18, so use the accepted account documents to resolve the label rather than inferring a new enrollment. Our worksheet and hypothetical examples are editorial advice. The cited descriptions are not a complete tariff or eligibility determination. Continue with bill comparisons, battery planning and home transfer records. Explore our Michigan site-survey reference, Solar Survey AI’s evidence methodology and confirm relevant survey scope. No financial result or utility approval is guaranteed.
About these guides
Published by Solar Survey AI, a commercial survey-services company. Our original decision checklists are recommendations; linked authorities support the referenced facts. We may benefit if you purchase our services. This is not independent certification of our company, a project-specific engineering decision or personal tax/legal advice. Local rules, contracts and site evidence control individual decisions. Reviewed 2026-10-06.
For available survey or inspection services, confirm your project scope and availability with our team. Our planned free homeowner remote diagnosis remains coming soon.
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