What information supports the capacity conversation?

Describe present and planned use

List major existing equipment and the future additions driving the request, such as an appliance, HVAC change, vehicle charging, solar-related plan, remodel, or added space. Provide model information when available and identify whether equipment is installed, ordered, or only being considered. Do not open panels or attempt load testing. A planning list helps qualified parties ask the right questions; it does not establish demand, available capacity, conductor condition, or an approved service size.

Separate property and utility information

Collect existing utility correspondence, meter or service documents, prior permits or plans when available, and safe photos of accessible exterior context. Identify overhead or underground service only from reliable records or ordinary observation. Do not assume the utility will approve a requested size, route, outage date, trench, or point of connection. The project scope should identify who submits information, who answers utility questions, and what decision waits for outside confirmation.

Compare alternatives by full impact

If more than one approach is technically available, compare the electrical result, equipment location, circuit work, utility dependency, access, outage, trenching or wall impact, finish restoration, schedule, and future flexibility. Avoid choosing from equipment price alone. A smaller physical cabinet may still require significant coordination, while an apparently simple equipment change may not meet the requested future use. The final recommendation should cite the project-specific basis and preserve remaining unknowns.

Record the decision without overclaiming

The approval should name the selected approach, equipment responsibility, circuits or connected work, outside requirements, access, finish effects, and assumptions that remain subject to field or utility confirmation. Do not advertise “solar ready,” “future proof,” code compliant, or guaranteed capacity unless the actual design, approval, and record support the exact statement. Closeout should retain the applicable documents rather than converting the original planning goal into an unsupported final claim.

Prepare a useful review packet

Give the responsible team one list of current major equipment, planned additions, available model information, timing, safe exterior context photos, prior documents, and the result you want. Mark unknown items as unknown rather than filling gaps with guesses. Ask the proposal to return a clear recommendation, the information used, outside confirmations still needed, alternatives considered, equipment and circuit boundary, wall or trench impact, and finish restoration. This packet helps the customer compare the requested outcome with the actual recommendation while keeping calculations, testing, design, and final equipment selection with qualified parties.

Project example: underground service and a utility-reviewed result

On the documented AWC project, power was supplied underground. AWC submitted photos of the old setup showing the panel’s relationship to the gas line and water spigot. SDG&E governed the service review. On this project’s SDG&E-reviewed path, 125 amps was the maximum available without major trenching. That result belongs to this property only. A future project needs its own utility review, site information, equipment plan, and written recommendation; customers should not use 125 amps or “no major trenching” as a general expectation.

Before approval

• Present equipment
• Planned additions
• Model information
• Available records
• Utility questions
• Location
• Route
• Alternatives
• Finish impact
• Decision basis