Diagnostic readiness checklist
What to gather before a review: system maps, exports, alarms, asset registers, access details. Speeds up scoping and reduces cost.
Resources
Evidence materials for operational building systems.
Start with the white paper on digital-building evidence chains, then use the guides and checklists to prepare for supplier conversations, technical reviews and spend decisions.
Evidence library
A place for papers, practical tools and case studies
The digital-building paper sets the frame: connectivity is not assurance until the evidence chain holds. This library gives that thinking somewhere to live as new papers, resources and approved case studies are added.
Available now
Paper / White paper
The State of the Digital Building
A North Current white paper on why connected buildings can still lack operational truth, and how evidence chains break between assets, data, support contracts and commercial decisions.
Evidence chainDigital buildingsSupplier ownership
Download paperAvailable now
Resource / Guide collection
Problem guides
Short diagnostic guides for mapping faults, PV and BESS reporting gaps, and energy bill evidence problems.
Data qualityMeteringOperational review
Browse guidesOn-page tools
Resource / Checklist set
Diagnostic readiness tools
Preparation prompts for evidence packs, integration details and operational handover checks before a review starts.
Evidence packsHandoverReview preparation
View toolsAvailable now
Resource / Reference collection
Standards and guidance references
Reference points for commissioning, metering, maintenance, alarms, golden-thread information, analytics and field reliability.
StandardsGuidanceEvidence checks
View referencesCase-study format ready
Case study / Anonymised case note
Evidence-chain case studies
A home for anonymised diagnostic examples where small site faults distorted reports, supplier ownership or spending decisions.
Root causeSpend assuranceSupplier boundaries
Discuss a caseProblem guides
Answers for common questions
01 · GUIDE
BMS Modbus Mapping Issues: What to Check Before Rewriting the Integration
A practical guide to diagnosing missing values, duplicated points, stale data and unclear ownership in BACnet or Modbus integrations.
Read guide02 · GUIDE
PV or BESS Not Reporting to the BMS: A Diagnostic Route
How to review inverter, battery, meter, gateway and BMS evidence before assuming a solar or storage asset has failed.
Read guide03 · GUIDE
Inaccurate Commercial Energy Bills: Trace the Data Before Challenging the Supplier
A practical route for reconciling commercial bills, meters, sub-meter exports, BMS data and site operating behaviour.
Read guide04 · GUIDE
RS485 Cabling Faults: What Poor Installation Costs in Data, Billing and Remediation
Five cabling errors found on a single site, how they created unstable comms, data loss and incorrect billing, and what to verify before accepting an RS485 installation.
Read guideBefore you start
Get more from a review by arriving prepared
The quality of a systems review improves significantly when the right evidence is available from the start. These tools help you get there faster.
Integration evidence pack
How to document integration details, protocol maps, vendor responsibilities and export constraints so an independent reviewer can assess them quickly.
Operational handover prompts
Questions that test whether a newly commissioned system is actually usable, not just installed and connected.
FAQ
Questions before you commit
What evidence is useful before a systems review?
Useful evidence includes system maps, screenshots, point lists, data exports, alarm logs, trend data, tariff context, known integrations, vendor contacts and a short summary of the operational impact.
Do you replace incumbent suppliers or contractors?
No. Our role is independent advisory support. We clarify the evidence, issues, ownership and action plan so internal teams and suppliers can work from a cleaner brief.
Can you review integration and protocol issues?
Yes. Integration review can include point naming, mapping, polling behaviour, missing values, duplicated points, data freshness and the practical impact on operations or reporting.
Is this useful before a retrofit or re-procurement?
Yes. A current-state map and acceptance criteria reduces ambiguity before tender, retrofit design, vendor selection or commissioning, and protects you from scoping gaps that emerge later.
Do you sell software or technology platforms?
No. We're not a SaaS platform or OEM-aligned installer. Recommendations may include software, configuration, process or supplier actions where the evidence supports them.
What does a diagnostic engagement cost?
Depth and terms are agreed through the enquiry process. The first conversation is free: no scope pitch, no obligation. We recommend the right depth for your situation, not the most comprehensive option by default.
Still not sure if you need us?
Describe what you're dealing with in a few lines. We'll tell you honestly whether an independent review would help.
Independent view within 2 weeks
Evidence-based findings
Clear ownership and next steps
No obligation · Vendor-neutral · First conversation is about scope, not a sale