Research methodology & data integrity

TransformerPath is an independent, editorially neutral transformer-industry intelligence and engineering platform. Everything we publish is grounded in a source, tagged with a confidence and a last-verified date, and correctable on request. This page explains how.

Source hierarchy

We prefer primary, authoritative sources and treat lower-authority sources as supporting evidence that must be corroborated. The hierarchy, from strongest to weakest:

Tier	Examples
Primary	Official manufacturer announcements, utility / operator publications, government and regulator publications, stock-exchange filings, official tenders.
Secondary	High-quality and industry news media, specialist trade publications, established sector analysis.
Supporting	Conference/event programmes, industry directories, professional-network posts (LinkedIn). Used only to corroborate, never as the sole basis for a technically or commercially important claim.

Researched vs company-reported information

We separate two kinds of information:

Independently sourced — established from public, verifiable evidence (primary or corroborated secondary sources) by TransformerPath's research. This carries our independent editorial weight.

Company-reported — information supplied by a company itself (for example a self-submitted factory, product or certification update). This is labelled as company-provided and is not merged into independent editorial intelligence without review. Company submissions do not change a company's research confidence, its editorial treatment, or any factual data we hold — only its presentation.

Confidence

We use a three-level confidence scale — never fake mathematical percentages. Confidence reflects source quality and corroboration for a specific fact, not a blanket rating of a company.

Level	What it means
High	Confirmed by a primary source, or corroborated by multiple independent reliable sources.
Medium	Strong single-source, or partially corroborated; treat as likely but re-verify before reliance.
Limited	A keyword-matched or weakly sourced reference; evidence of a capability or event, not a confirmation.

Where a system (for example a keyword-matching pipeline) automatically associates an item, it defaults to Limited confidence and is labelled accordingly — we never upgrade a fact's confidence without a corroborating source.

Claim types & attribution

We tag how a fact is established so a reader can judge it. Key labels: INDEPENDENTLY_SOURCED, COMPANY_REPORTED, INFERRED, UNVERIFIED. A company development is displayed because it references that company; it is not presented as an independently verified award, order or project attribution unless the source explicitly confirms one.

Transformer-scope grading

Transformer-relevant projects carry a scope grade so a grid/substation project is never misread as confirmed transformer equipment. CONFIRMED = transformer equipment explicitly documented · INFERRED = reasonably inferred from the substation/grid scope · UNKNOWN = not yet documented. Inference is always shown as inference, never as confirmation.

Verified tick

A small tick appears only when a primary official source states the fact and that source was checked on a recorded date. Hover, focus, or tap the tick for Verified · Source: organiser site · checked 14 Oct 2026. The source type in that note is a link to the source URL. A secondary source, a directory listing, or a confirmed fact with no check date shows no tick and no trust label.

How we source (and what we do not claim)

Every public Intel card, directory fact and project/tender row must trace to a source URL or filing. We prefer official utility / tender-board / regulator pages, then stock filings, then corroborated trade press. Keyword hits and portal mirrors are discovery inputs — they are graded CONFIRMED / SUPPORTED / REVIEW_REQUIRED / REJECTED before anything is eligible to publish.

Discovery ≠ publication. Finding a GCC tender or localisation story in a portal registry does not auto-inject a Daily Intel card. Publish gates require evidence grade, date-field honesty (observation dates only — never tender close as “freshness”), and editorial review. Zero qualifying activity in a market (for example a clean Qatar September) is reported as coverage success, not failure.

Live portal adapters (DEWA, Etimad, Bahrain Tender Board and peers) stamp last_checked on every probe and last_success only when the response body is reachable and contains transformer-domain vocabulary. Session-gated or JS-only shells stay BLOCKED_AUTH / NEEDS_ADAPTER — they are never counted as live coverage.

Intel coverage cadence

This is how often each registered source is checked. The figure is the crawl_frequency on the source registry. A source with no frequency on file is marked Not recorded. Per-country coverage (what has been published, and when it was last sourced) stays on the market pages.

Desk schedule

These are the scheduled functions in netlify.toml. They are the desk clocks, not a per-source promise.

Function	Schedule
`refresh-data`	`0 * * * *`
`daily-rebuild`	`0 6 * * *`
`watchlist-alerts`	`30 6,18 * * *`

Bahrain

Source	Id	Check cadence	Last checked	Status
Kingdom of Bahrain Tender Board	`bahrain-tender-board`	Daily	2026-10-15	ACTIVE
Electricity & Water Authority (EWA) — Central Stores Directorate	`ewa-bahrain`	Daily	2026-10-15	ACTIVE

Kuwait

Source	Id	Check cadence	Last checked	Status
Ministry of Electricity, Water & Renewable Energy (MEWRE)	`mewre-kuwait`	Daily	2026-10-15	NEEDS_ADAPTER
Kuwait Central Agency for Public Tenders / Central Procurement	`kuwait-central-procurement`	Daily	2026-10-15	BLOCKED_AUTH

Oman

Source	Id	Check cadence	Last checked	Status
Authority for Public Services Regulation (APSR)	`apsr-oman`	Twice a week	2026-10-15	BLOCKED_AUTH
Invest Oman / Ministry of Commerce, Industry and Investment Promotion	`invest-oman`	Twice a week	2026-10-15	BLOCKED_AUTH
Oman Electricity Transmission Company (OETC)	`oetc`	Twice a week	2026-10-15	ACTIVE
Nama Group	`nama-group`	Twice a week	2026-10-15	ACTIVE
Voltamp Energy SAOG	`voltamp-oman`	Weekly	Not checked	NEEDS_ADAPTER
Oman Observer / ONA	`oman-observer`	Daily	Not checked	NEEDS_ADAPTER
Times of Oman	`times-of-oman`	Weekly	Not checked	NEEDS_ADAPTER
The Arabian Stories	`arabian-stories`	Event-driven	Not checked	NEEDS_ADAPTER

Qatar

Source	Id	Check cadence	Last checked	Status
Qatar General Electricity & Water Corporation (KAHRAMAA)	`kahramaa`	Daily	2026-10-15	ACTIVE
Central Tender Committee / Government Procurement	`qatar-tender-committee`	Twice a week	Not checked	NEEDS_ADAPTER

Saudi Arabia

Source	Id	Check cadence	Last checked	Status
Etimad Government Procurement Portal	`etimad`	Daily	2026-10-15	BLOCKED_AUTH
Saudi Water Authority (الهيئة السعودية للمياه)	`saudi-water-authority`	Daily	2026-10-15	BLOCKED_AUTH
Saudi Electricity Company / Saudi Energy	`sec-saudi-energy`	Daily	2026-10-15	BLOCKED_AUTH
Saudi Power Procurement Company (SPPC)	`sppc`	Weekly	Not checked	NEEDS_ADAPTER
SaudiGulf Projects	`saudigulf-projects`	Not recorded	Not checked	—

United Arab Emirates

Source	Id	Check cadence	Last checked	Status
Dubai Electricity & Water Authority (DEWA)	`dewa-open-tenders`	Daily	2026-10-15	ACTIVE
Emirates Water and Electricity Company (EWEC)	`ewec`	Weekly	Not checked	NEEDS_ADAPTER
TAQA Transmission	`taqa-transmission`	Weekly	Not checked	NEEDS_ADAPTER
Sharjah Electricity, Water and Gas Authority (SEWA)	`sewa`	Twice a week	Not checked	NEEDS_ADAPTER
Emirates News Agency (WAM)	`wam`	Not recorded	Not checked	—

Country not recorded

Source	Id	Check cadence	Last checked	Status
MEED	`meed`	Daily	Not checked	ACTIVE
Zawya	`zawya`	Not recorded	Not checked	—
Technical Review Middle East	`technical-review-middle-east`	Not recorded	Not checked	—
Utilities Middle East	`utilities-middle-east`	Not recorded	Not checked	—
Arabian Business	`arabian-business`	Not recorded	Not checked	—

Corrections

Every company, project, utility and intelligence page offers "suggest a correction". A correction is reviewed against a source before it is applied — it is never auto-overwritten. Tell us the entity, the field, the current value, your proposed correction and a source/document, and the correction stays pending until reviewed.

Last verified

Each entity and fact carries a last verified date — the last time we confirmed it against its source. Dates are shown so you can judge currency. TransformerPath data is a snapshot of published public information on that date; always carry out your own due diligence before a commercial decision.

Commercial independence

A company that pays TransformerPath (verified listing, sponsor, advertising, RFQ eligibility, enhanced presentation, logo, catalogue, contact) receives no higher research confidence, better editorial treatment, preferential Intel, fake rankings or suppressed negative factual data. Commercial products change presentation, never research integrity. Research data remains editorially independent.

Neutral institutional voice

TransformerPath maintains a neutral institutional voice. We do not name individuals in public editorial content, we do not carry unrelated company branding, and we do not rank or score companies (no "best manufacturer", no quality rating) unless a future transparent methodology justifies it.