Plain-English guide

Glossary

This page explains the words used to examine the Lal Lal Wind Farm record.

It is not a general guide to wind farms. It explains the terms needed to answer the central question examined by this website: do the available documents show that the Lal Lal Wind Farm's planning, technical and regulatory obligations are being met?

How to use this page

Start with the plain-English meaning

Each entry is written to support the same documentary method used throughout the website:

What does it mean?
What requirement or part of the record does it relate to?
Why does it matter?
Where can I read more?

Important: Where exact wording matters, the relevant permit, standard or official document remains the authority. The Glossary helps readers understand what was required, what evidence was found, what documentary gaps were identified, and what responses were received; it does not replace the source documents.
Glossary section

Understanding the wind farm

Basic project and timing terms.

Lal Lal Wind Farm
What does it mean? The wind farm near Elaine and Yendon, south-east of Ballarat, examined by this website.
Why does it matter? The website examines whether the available documents show that this wind farm's planning, technical and regulatory obligations are being met.
Key dates: 30 April 2009 — Planning Permit approved; May 2018 — construction commenced; 18–19 November 2019 — final-turbine commissioning milestone implied by the public landscaping chronology; 18–19 November 2020 — corresponding landscaping closure dates; 10 December 2020 — later operator commissioning date reported in the agency record.
Read more: Start Here.
Project
Construction
What does it mean? The period during which the physical wind farm infrastructure was built.
How it is used: Construction is the transitional phase between pre-construction monitoring and the later operational (post-construction) assessment of the wind farm. It marks the period during which the physical infrastructure is built before commissioning begins.
Why it matters: Construction timing matters because it separates pre-construction monitoring and assessment from commissioning, post-construction monitoring and later compliance activities.
Key period: May 2018–November 2019.
Referenced throughout: Start Here, Chronology, Technical Reports.
Read more: Chronology.
Term
Commissioning
What does it mean? The process of testing and bringing completed wind turbines into service, culminating in the commissioning of the final wind turbine.
How it is used: The documentary record uses the commissioning of the final turbine as an important chronological reference point for planning, compliance, monitoring and reporting obligations.
Why it matters: The commissioning of the last turbine is used throughout the planning framework as a reference point for time-dependent obligations. The endorsed Noise Compliance Testing Plan, prepared and approved through Permit Conditions 24 and 25, schedules compliance monitoring during the first two months and between 10 and 12 months following commissioning of the last turbine. Permit Condition 12(b) requires off-site landscaping offers to remain available until 12 months after commissioning of the last turbine, and Condition 17(b) requires a bat and bird monitoring program of at least two years from commissioning of the last turbine.
Key documentary reference: The Community Reference Group minutes dated 4 December 2019 state that the landscaping program would close 12 months after commissioning of the last turbine and identify 18 November 2020 as the closure date, thereby implying 18 November 2019 as the commissioning milestone. The June 2020 Community Bulletin states 19 November 2020 as the closure date, implying 19 November 2019. A later agency record separately reports 10 December 2020 as the date on which the last turbine was commissioned and the wind farm commenced operating. These source-specific dates are examined in the Commissioning Gateway, Chronology and Agency Records pages.
Referenced throughout: Start Here, Chronology, Framework, NCTP, Key Project Dates.
Read more: Start Here, Commissioning Gateway, Chronology, Key Project Dates, NCTP, Agency RecordsOmbudsman ComplaintsProfessional Standards.
Timeline
Pre-construction Assessments
What does it mean? Acoustic monitoring, prediction and assessment undertaken before wind farm operation.
How it is used: This includes the earlier planning-stage assessment, Marshall Day background monitoring, Sonus predictive assessments and associated Environmental Auditor peer review material.
Why it matters: It separates the predictive and background record established before operation from construction, commissioning and later post-construction compliance assessment.
Key period: Prior to May 2018.
Referenced throughout: Start Here, Framework, Chronology, K15aa, NZS 6808 and Technical Reports.
Read more: Pre-construction Acoustic Assessments, Technical Reports.
Term
Post-construction Monitoring and Assessment
What does it mean? Monitoring and assessment undertaken after construction as part of evaluating operational wind farm sound.
How it is used: The post-construction pathway is governed by the Planning Permit, NZS 6808:2010 and the endorsed Noise Compliance Testing Plan.
Why it matters: It provides the operational assessment record against which mandatory methodology and reporting can be examined.
Key period: From October 2019, when construction was recorded as complete and reliability testing and commissioning were continuing.
Referenced throughout: NCTP, SAC, Verification, Technical Reports.
Read more: NCTP, SAC.
Term
Glossary section

Understanding the planning framework

The legal and technical documents that set the requirements.

Planning and Environment Act 1987
What does it mean? The Victorian law that provides the planning framework within which planning permits and permit conditions operate.
How it is used: The Act is the legislative starting point for the planning pathway presented in this record.
Why it matters: It helps readers understand where the Planning Permit sits within the broader legal framework.
Referenced throughout: Start Here, Framework, Permit Amendment, Chronology.
Read more: Framework.
Term
Planning Permit
What does it mean? The formal approval that allows the wind farm to operate, subject to conditions.
Why does it matter? The permit is the starting point. It tells readers what was required and which later plans, standards and reports matter.
Key date: 30 April 2009 — Planning Permit approved.
Read more: Framework, Permit Amendment.
Rule
Conditions 23–25
What does it mean? Permit conditions dealing with wind farm noise, testing and compliance.
Why does it matter? They connect the planning permit to NZS 6808:2010, the Noise Compliance Testing Plan and the later testing record.
Read more: Framework, NCTP.
Rule
NZS 6808:2010
What does it mean? The technical standard used in the planning framework to assess wind farm sound.
Why does it matter? It sets key definitions and methods used for background sound, operational sound and compliance assessment.
Read more: NZS 6808.
Standard
Noise Compliance Testing Plan
What does it mean? The approved plan setting out how Lal Lal Wind Farm noise compliance was to be tested.
Why does it matter? It identifies monitoring locations, methods, reporting steps and requirements for special audible characteristics.
Key date: 23 January 2018 — Noise Compliance Testing Plan issued.
Read more: NCTP.
Plan
Noise Management Plan
What does it mean? A plan for managing operational wind turbine noise, complaints, compliance risks and responses.
Why does it matter? The NMP forms part of the later regulatory record and must be read with the auditor and EPA correspondence about its review and use.
Read more: Noise Management Plan.
Plan
Glossary section

Understanding noise assessment

Terms used in the monitoring and assessment documents.

Background Sound
What does it mean? The sound that existed before any wind turbines were installed in the area.
Official definition: “Background sound — The A-frequency-weighted L90 centile level measured prior to the installation of any wind turbines in an area.”
Why does it matter? It is used as the starting point for assessing later operational wind farm sound. This makes the timing and location of background monitoring important.
Key date: May 2018 — construction commenced. Under NZS 6808:2010, background sound must be measured prior to the installation of any wind turbines in an area.
Read more: NZS 6808, K15aa.
Noise
Noise-sensitive Location
What does it mean? A dwelling (house) or other noise-sensitive place identified within technical documents by a unique receiver identifier, such as K15aa, where wind farm sound may be assessed.
How it is used: Noise-sensitive locations are identified within the governing technical and assessment documents.
Why it matters: The term helps readers understand that identifiers such as K15aa refer to particular dwellings or assessment locations.
Referenced throughout: K15aa, NCTP, NZS 6808, Technical Reports.
Read more: K15aa.
Term
Noise-sensitive Receiver
What does it mean? A dwelling (house) identified within technical reports by a receiver code or identifier, for example K15aa, for the purpose of noise assessment and reporting.
How it is used: Technical reports use receiver identifiers to refer consistently to particular dwellings and assessment locations.
Why it matters: Understanding receiver identifiers prevents readers from mistaking codes such as K15aa for report or instrument numbers.
Referenced throughout: K15aa, NCTP, NZS 6808.
Read more: K15aa.
Term
Notional Boundary
What does it mean? An imaginary boundary extending 20 metres around a dwelling (house), used within wind farm noise assessment to determine where sound may be assessed.
How it is used: The concept is used within NZS 6808:2010 and the endorsed Noise Compliance Testing Plan as part of the assessment methodology for noise-sensitive locations.
Why it matters: Understanding the notional boundary helps readers understand where sound assessments relate to a dwelling and why measurement locations are described in technical reports.
Referenced throughout: NZS 6808, NCTP, K15aa.
Read more: NZS 6808, NCTP.
Term
Pre-construction Acoustic Assessment
What does it mean? An acoustic assessment prepared before operation to predict wind farm noise and establish relevant assessment inputs.
How it is used: The Lal Lal record includes planning-stage work, Marshall Day background monitoring, Sonus predictive assessments and an AECOM Environmental Auditor peer review.
Why it matters: These documents precede the NCTP post-construction compliance pathway and are later referenced by SLR, ARUP and EPA material.
Read more: Pre-construction Acoustic Assessments.
Technical
Predictive Noise Assessment
What does it mean? Computer modelling used to estimate expected wind farm noise at surrounding receiver locations before operation.
Why it matters: Predicted levels and contours may later be cited when explaining receptor selection or comparing predictions with measured operational results.
Read more: Pre-construction Acoustic Assessments.
Technical
Predicted Noise Contour
What does it mean? A mapped line joining locations predicted to experience the same modelled sound level.
Why it matters: Later ARUP correspondence refers to the Sonus 35 dB(A) contour when explaining the documentary position for J14aa and NCTP receiver selection.
Read more: Later documentary references.
Technical
Preferred operational measurement location
What does it mean? A nominated receiver location at which operational noise measurements are intended to be undertaken, subject to access and any justified alternative location process.
How it is used: The endorsed NCTP identifies six preferred locations, while the October 2022 NMP identifies three.
Why it matters: A change in the number or identity of preferred locations must be traceable through the approved documents and the later technical record.
Read more: NCTP, Noise Management Plan.
Measurement
Attended Listening Observations
What does it mean? Observations where an acoustician attends predetermined locations identified under the Noise Compliance Testing Plan and records what can be heard during a site visit.
How it is used: The endorsed Noise Compliance Testing Plan identifies when attended listening observations are required, where they are to be undertaken and how they form part of the post-construction compliance assessment methodology.
Why it matters: Attended listening observations help identify whether audible characteristics are present at assessment locations specified by the Noise Compliance Testing Plan.
Referenced throughout: SAC, NCTP, Technical Reports.
Read more: SAC, NCTP.
Term
Special Audible Characteristics
What does it mean? Particular sound features, such as tonality or other clearly noticeable characteristics, that may require separate assessment.
How it is used: The NCTP and NZS 6808 framework require consideration of special audible characteristics through relevant assessment and reporting steps.
Why it matters: The SAC page records whether the disclosed material enables independent verification of attended observations and reporting requirements.
Referenced throughout: SAC, NCTP, NZS 6808, Verification.
Read more: SAC, NCTP.
SAC
K15aa
What does it mean? The code used in the technical documents for a particular dwelling and assessment location.
Why does it matter? K15aa is central to the website because the NCTP required an updated background noise report for that location, but the later record raises questions about the monitoring used and the documents relied upon.
Key dates: June 2019 — Lal Lal Wind Farm connected to the Victorian electricity grid; July–November 2019 — supplementary background monitoring undertaken at K15aa.
Read more: K15aa.
Location
Glossary section

Understanding the evidence

Terms used to test what the documents do—and do not—show.

Documentary Role
What does it mean? The job a document performs in the record.
Why does it matter? A prediction, an approved plan, a monitoring report, an auditor letter and an FOI release do different things. A document should not be treated as proof of something it was not prepared to establish.
Read more: Understanding the Record.
Method
Documentary Verification
What does it mean? Checking whether the available documents allow a reader to follow each required step and see the evidence for it.
Why does it matter? It is how the website tests the record: what was required, what was found, what remains unexplained, and how the issue was answered when raised.
Read more: Documentary Verification.
Method
Disclosed Record
What does it mean? The documents that have actually been provided, released or otherwise made available.
Why does it matter? The website assesses the evidence that can be seen. It does not assume that an unseen document exists or answers a gap.
Read more: Verification.
Evidence
Environmental Auditor
What does it mean? An independent auditor role referred to in the regulatory and technical record.
How it is used: Auditor material is relevant to the Noise Management Plan, regulatory reliance and later administrative record.
Why it matters: The website asks what auditor material is disclosed and whether the record identifies the basis for regulatory reliance.
Referenced throughout: Framework, Verification, Documents, Record Status.
Read more: Documentary Verification, Documents.
Audit
Environmental Auditor Peer Review
What does it mean? An independent review by an EPA-appointed Environmental Auditor, supported where necessary by technical specialists.
How it is used: The AECOM report dated 30 April 2018 records peer review of the April 2018 Sonus pre-construction assessment.
Read more: Pre-construction Acoustic Assessments.
Verification
Auditor verification of an NMP
What does it mean? Independent review by an appointed environmental auditor of whether the NMP meets the applicable regulatory requirements.
How it is used: EPA correspondence records a verification request in November 2023 and later states that auditor review remained outstanding.
Why it matters: The record must distinguish between an NMP being supplied, an auditor being asked to review it, and completed auditor verification.
Read more: Noise Management Plan, Documentary Verification.
Governance
Glossary section

Understanding regulators and responses

Terms used for public authorities, requests, decisions and replies.

Regulators
What does it mean? Public authorities and statutory bodies responsible for parts of the planning or regulatory system.
Why does it matter? The website publishes the questions put to regulators, the responses received and, where applicable, the lack of a response.
Read more: Agency RecordsOmbudsman ComplaintsProfessional Standards.
Agency
Government & Regulatory Agencies
What does it mean? The public authorities whose documents form part of this record, including EPA Victoria, DTP, Moorabool Shire Council and the Australian Energy Infrastructure Commissioner.
Why it matters: Each authority has a different role. The website presents their records separately so that correspondence, reliance and disclosure are not confused.
Read more: Agency Records gateway.
Agencies
Freedom of Information
What does it mean? A legal process used to request documents from public authorities.
Why does it matter? FOI decisions show what an agency located, released, withheld or said it could not find. They can therefore reveal both evidence and gaps in the agency record.
Read more: FOI Register.
Agency
Agency Record
What does it mean? The requests, correspondence, FOI decisions, documents and stated positions connected with one public authority.
Why does it matter? It shows what the authority was asked, what it provided, what it said, and what remained unanswered.
Read more: Agency RecordsOmbudsman ComplaintsProfessional Standards.
Agency
Regulatory Record
What does it mean? The documents showing how requirements, reports, regulator correspondence and decisions developed over time.
Why does it matter? It helps readers compare what was required with what regulators later relied upon or said in response.
Read more: Agency RecordsOmbudsman ComplaintsProfessional Standards.
Record
Glossary section

Understanding this website

Terms used to organise and preserve the Trustee's record.

Administrative Record
What does it mean? The documents, requests, responses, decisions and chronology assembled by the Trustee.
Why does it matter? It is the evidence base used to identify and explain the gaps shown on this website.
Read more: Administrative Record.
Record
Crystallised Record
What does it mean? A defined body of documents fixed at a particular date so it can be preserved, published and referred to consistently.
Why does it matter? Later documents can be added without changing what the earlier record contained at the time it was issued.
Read more: Record Status.
Status
Noise Management Plan (NMP)
What does it mean? A documented set of procedures for identifying, assessing and controlling wind-turbine noise risks, assessing compliance, responding to non-compliance and addressing complaints.
How it is used: The available Lal Lal Wind Farm NMP is Version 3.0 dated 18 October 2022. Its technical content is read separately from EPA custody, verification and reliance correspondence.
Read more: Noise Management Plan pathway.
Technical
Central question

How the Glossary supports the record

These definitions help readers compare the governing requirements with the documents disclosed for Lal Lal Wind Farm, identify where the documentary pathway can be followed, and recognise where a required step, supporting document or response has not been located.

Next step

Continue to the Framework

The Framework page explains the main documents that set the planning, technical and regulatory obligations examined by this website.