31 Aug Utility Matrix
A capsule house utility connection matrix assigns each interface before work reaches the site. It should show who provides product data, who establishes local requirements, who designs and installs the site connection, who approves it, and who verifies the completed handoff.
The matrix is a coordination tool, not an electrical, plumbing or wastewater design. Actual requirements depend on the selected unit, site, intended use, providers, contract and jurisdiction. Qualified local professionals must design and approve project-specific systems.
Define the Interface, Not Just the Utility Name
A row labelled “electricity” is too broad. Break each utility into a physical and information boundary: the unit connection point, site distribution, isolation, protection, trench or route, metering where applicable, access for maintenance, testing and final records.
Identify the selected model and drawing revision. Connection locations can change with orientation or configuration. Mark whether information is preliminary, for coordination, approved for design or released for construction.
Use Clear Responsibility Roles
For every task, identify one accountable party and the parties that provide, review or approve information. Typical participants may include the owner, unit supplier, local electrical or plumbing designer, civil team, utility provider, installer, commissioning party and authority. Their actual scope must come from project contracts.
A supplier may provide available product-side interface data without accepting responsibility for site design. Likewise, a local trade cannot verify the unit-side boundary without current supplier information. Make the handoff explicit instead of assuming one party owns the entire chain.
Start With an Information Register
List the inputs needed for coordination: unit layout, connection locations, stated product requirements, intended operating conditions, site survey, available utility data, provider conditions, local design criteria and planned routes. Attach source, date, revision, owner and approval status.
If information is missing, record an assumption and a hold point. Do not copy voltage, capacity, pipe size, pressure, drainage fall or other values from another project. The responsible designer must establish applicable values for this site and use.
Utility Responsibility Matrix
| Activity | Typical lead | Required handoff |
|---|---|---|
| Product interface data | Selected-unit supplier | Current locations, format and limitations |
| Site and provider criteria | Owner and local project team | Verified site data and applicable requirements |
| Site-system design | Qualified local designer | Approved drawings, specifications and interfaces |
| Installation coordination | Designated contractors | Sequence, access, inspection and hold points |
| Testing and handover | Named project parties | Results, approvals, as-built records and ownership |
Coordinate Electrical Interfaces
Record the product-side connection point and the information available for the selected configuration. Assign responsibility for site supply, distribution, protective measures, isolation, earthing or grounding as applicable, route, connection, inspection and energization. Provider and jurisdiction requirements must be established locally.
The article on electrical systems in prefab and modular homes gives broader context. It does not replace project drawings, calculations, provider approval or competent installation.
Coordinate Water and Wastewater
Separate incoming water from wastewater and any other drainage connection. Identify unit termination points, site routes, isolation, access, treatment or disposal boundary where relevant, testing and responsibility after handover. Local professionals must assess water quality, pressure, capacity, frost or climate exposure, drainage conditions and authority requirements.
Avoid burying a design decision inside a procurement email. Record approved connection details in the coordinated drawing set, and make sure foundations, decks, roads and landscaping do not block service routes or maintenance access.
Plan Sequencing and Hold Points
Set dates for information release, design review, underground work, unit placement, connection, inspection, testing and handover. State which activities cannot proceed until an input or approval is accepted. The capsule house installation guide provides the wider sequence.
Use the foundation design inputs checklist to coordinate utility routes with survey, drainage, supports and access. A responsibility matrix is most useful when it connects to the same controlled project information.
Close the Matrix at Handover
Before occupation or operation, record completed inspections, tests, approvals, as-built locations, operating information, warranties where applicable, shutoff or isolation access, and the party responsible for ongoing service. Open items should have an owner and due point rather than disappearing from the construction record.
To request available product-side interface information, contact Rovellc with the selected model, configuration, orientation, destination and known site utilities. The local project team should then verify the data and complete the project-specific design, approval and installation process.