Solutions / Engineering guide
Wind Power vs Grid Extension for Remote Sites
The distance to a power line is only one input to a remote-site supply decision. Obtain the actual network proposal and compare it with complete local-supply candidates for the same demand, project period and required service.
Compare the offered connection with the whole local system.
A mapped line is not a confirmed connection, and a turbine quotation is not a complete independent supply. Keep the scope and remaining responsibilities of both candidates visible.
01 / Site requirement
State the service that all candidates must provide.
Record site coordinates, load boundary, planned operating period and required electrical service.
Record site coordinates, load boundary, planned operating period and required electrical service. Include peak or short-event information relevant to the responsible designer and distinguish confirmed demand from future expansion. Identify the party authorised to request the connection.
Set the required readiness date and any interim supply need. A permanent facility and a short-duration remote project can have different comparison periods. Do not assume the nearest mapped network asset can deliver the capacity, phase arrangement or connection the project requires.
02 / Network response
Request a proposal tied to the actual location and load.
Obtain the responsible operator’s route for reviewing the site and request the applicable written scope.
Obtain the responsible operator’s route for reviewing the site and request the applicable written scope. Record proposed connection point, supplied work, customer work and outstanding conditions. Distinguish a preliminary estimate or screening response from a proposal covering the defined installation.
National Grid’s public small-connection process illustrates the need for location and connection information within its own service area. Its capacities and regional procedures are not requirements for this site. Use the actual operator’s response rather than copy a foreign connection threshold or price.
03 / Route and works
Identify what lies outside a straight-line distance.
Retain the proposed route, land or access questions, crossings, ground information and site work identified by the responsible parties.
Retain the proposed route, land or access questions, crossings, ground information and site work identified by the responsible parties. Record which issues remain to be assessed and who owns their resolution. A map distance does not describe every part of the construction scope.
Clarify metering, customer distribution, applicable studies or approvals and the readiness responsibilities stated in the proposal. This guide supplies no excavation method, easement conclusion or universal construction cost per kilometre. Those inputs belong to the actual project and operator review.
04 / Local candidates
Include the equipment that completes the service.
Describe wind, solar, generator or combined alternatives using actual candidate equipment and resource evidence.
Describe wind, solar, generator or combined alternatives using actual candidate equipment and resource evidence. List power conversion, support structures, local works, storage if proposed and remaining supply duties. A wind-only annual energy estimate does not establish an independent continuous supply.
MARSTON claims no own-brand storage or compatibility with every third-party device. Use the wind-and-diesel comparison and the applicable integration documents where those sources are proposed. If the site evidence does not support wind, lower its priority.
05 / Time and continuity
Compare when each candidate becomes available and what it supplies.
Record the network and local-installation schedule assumptions, dependencies and required interim arrangements.
Record the network and local-installation schedule assumptions, dependencies and required interim arrangements. Keep a stated delivery or connection date separate from confirmed readiness evidence. Identify which project phase each option can support under its documented scope.
Compare continuity and support obligations using the owner’s actual service requirements and available evidence. A grid extension is not automatically an outage-free service, and local generation does not automatically provide autonomy. Define remaining duties without inventing reliability percentages for either candidate.
06 / Decision register
Retain the written inputs and unresolved conditions.
Compare included project and operating costs over the same period, with the actual proposals and charge information attached.
Compare included project and operating costs over the same period, with the actual proposals and charge information attached. Link the billing inputs for the offered service. Distance alone cannot establish a universal economic crossover between grid and local generation.
Send MARSTON the site service brief, relevant network proposal, resource evidence and requested local wind scope. Keep the operator and local designer responsibilities separate. This page guarantees no connection entitlement, lead time, remote-site saving or distance beyond which wind must be chosen.
Continue the review with Wind vs Diesel Power: Compare the Same Remote Service.
Continue the review with Electricity Bills: Inputs for a Wind Project Assessment.
Continue the review with Wind Project Engineering Documents: Revisions & Review Status.
General background: National Grid Electricity Distribution: location-specific connection process context. These references explain industry concepts; they are separate from the applicable MARSTON product and project documents.
Prepare the information for this review.
Use the checklist to organise the project information. Mark unavailable items and retain document references.
| Review item | Information to provide | Purpose |
|---|---|---|
| Common requirement | Coordinates, loads, service period and readiness need | Define the alternatives’ obligation. |
| Network proposal | Connection point, written work scope and open conditions | Identify the actual offer basis. |
| Route responsibilities | Access, crossings, land questions and customer works | Avoid a distance-only comparison. |
| Local supply scope | Devices, resource, supports and remaining continuity duties | Include the complete alternative. |
| Comparison record | Timing, operating inputs, costs and unresolved assumptions | Retain the decision evidence. |
Engineering questions.
Can distance to the nearest line decide the supply option?
No. Obtain the network scope, route conditions, required service and complete local alternatives.
Does a nearby line guarantee a connection?
The actual operator must review the location and requested service. A map is not a proposal.
Is there a standard distance where wind becomes cheaper?
No universal threshold is given. Project-specific scope, resource, period and proposals determine the comparison.
Does a turbine quote cover an independent supply?
Confirm all conversion, local works, backup or storage duties and integration. Equipment supply alone does not establish the full service.
Should solar or continued generator supply be excluded?
Compare relevant alternatives against the same requirement; wind should remain conditional on the evidence.
What is the useful first deliverable?
A common site-service brief, written network response and complete local-candidate scope with open questions.
Technical enquiry
Bring your project information to the discussion.
The distance to a power line is only one input to a remote-site supply decision. Share the available information and the equipment scope you want reviewed in a technical quotation.