THE SHORT ANSWER
KUA’s agreement calls for a new interconnection application at least 30 days before a gross-power-rating modification and 60 days’ advance written notice when another renewable system is added using the same inverter. [1]
Describe the physical change first
List the existing module count, inverter, battery and approved rating, then describe the proposed additions. Avoid calling every project an “expansion.” Replacing a failed module, adding capacity and installing a second array may trigger different documentation questions.
Ask KUA which clause fits
Send the proposed scope and current agreement to KUA before ordering equipment. The 30-day and 60-day language addresses different situations; the homeowner should not choose the shorter path because it sounds easier. Keep KUA’s response tied to the service address.
Check the resulting tier and service limit
Recalculate gross power rating and compare the result with the current tier and distribution-service rating. Added DC capacity can change utility requirements even if the existing inverter remains. Insurance, fees, studies or equipment layout may need another review.
Coordinate permits and warranties
Utility notice does not replace local permits, engineering or product instructions. Ask who updates the one-line, array layout and equipment inventory. If the original installer is gone, verify who can perform the work and what manufacturer authorizations or owner approvals are required.
Close the loop after the work
Retain the accepted notice or application, final inspection, revised equipment list and monitoring layout. Confirm the utility status before parallel operation. This creates a clean baseline for future production comparisons instead of leaving the homeowner with two inconsistent system records.
Before your next conversation
- Inventory the approved existing system.
- Describe the proposed change precisely.
- Obtain KUA direction before ordering equipment.
- Archive the revised approval and monitoring layout.
Primary sources
- Kissimmee Utility Authority: Application for Interconnection
Primary reference checked September 9, 2026. Confirm the current form, tariff, account process and equipment instructions for your address and system.
Planning examples and questions are Origin’s editorial guidance, not a property-specific diagnosis, engineering design, tax determination or promise of savings. Manufacturer and utility references do not imply an affiliation with Origin.
Need help with the system you already have?
Request a maintenance review to document the existing system before planning an expansion.
Request solar service →Equipment support, diagnostic fees, availability and accepted work are confirmed before service. A request is not a confirmed appointment.