How to Plan a LED Streetlight Retrofit

An LED streetlight retrofit planned from a spreadsheet list of fixture addresses is a project waiting to encounter the infrastructure it forgot to account for.

Municipalities planning LED conversions need to know not just which fixtures they have, but what type they are, what wattage they currently consume, what age they are, which ones are utility-owned versus municipal-owned, which ones have poles that will need replacement in addition to luminaire conversion, and where the geographic concentrations of highest-priority replacement candidates are located. That information, on a map, is the difference between a retrofit plan that surprises nobody and one that discovers mid-project that an entire district's poles need replacement before the luminaires can be converted — a discovery that blows the project budget and timeline.

Atlas gives LED retrofit planners the spatial inventory view that a spreadsheet list cannot provide, tracking every fixture from the prioritization decision through installation completion.

Here's how to plan an LED retrofit from start to finish.

Why LED Retrofit Planning Requires a Spatial Inventory

The retrofit plan is only as good as the inventory it's built from.

An LED retrofit planned spatially replaces the highest-cost, most energy-inefficient fixtures first and executes installations efficiently — rather than converting in whatever sequence the work order queue generates.

Step 1: Build the Pre-Retrofit Inventory Baseline

The retrofit plan starts with knowing exactly what you're replacing:

Export your current fixture inventory from Atlas as the starting point dataset for retrofit planning — every fixture with its type, technology, wattage, installation age, condition, pole material, and district assignment
Flag fixtures already on LED technology that are excluded from the retrofit scope — these are fixtures to track for replacement cycle completion but don't need conversion
Identify pole condition as the key variable that splits conversion projects into luminaire-only swaps versus full pole-and-luminaire replacements — a fixture on a failing steel pole needs a different project scope and budget than a fixture on a structurally sound pole of any material
Cross-reference utility billing records to confirm which fixtures are utility-owned and which are municipal-owned, since this affects procurement, installation responsibility, and rebate eligibility for each fixture
Calculate current energy consumption by multiplying fixture count by wattage by operating hours per year for each technology type — this establishes the energy baseline that post-retrofit consumption will be compared against for savings documentation

Step 2: Prioritize Retrofit Candidates

Not all retrofits are equal priority:

Score each fixture on a composite priority index combining: wattage (higher wattage = higher priority), age (older = higher priority), condition (worse = higher priority), and location priority (school zones, arterials, high-pedestrian areas = higher)
Separate luminaire-only candidates from full replacement candidates — fixtures on structurally sound poles with only the luminaire needing replacement have lower project cost and faster installation than full pole replacements
Identify fixtures eligible for utility rebates — most utilities offer rebate programs for LED conversions, and rebate-eligible fixtures may have higher financial priority even if they're lower on the composite priority index
Group candidates by geographic phase — all high-priority candidates in district A before moving to district B, rather than the highest-priority candidate from every district simultaneously, enables efficient installation routing and bulk procurement by phase
Create the retrofit priority list ranked within each phase, which becomes the installation work order sequence for the contractor or crew executing the retrofit

Step 3: Design the Installation Tracking Workflow

The retrofit is a multi-month or multi-year project — track every fixture through it:

Create a retrofit project layer in Atlas separate from the main fixture inventory, showing only retrofit candidate fixtures with their priority score, project phase, and installation status
Define installation status stages — Scheduled, In Progress, Installed-Not-Energized, Complete, Failed/Deferred — with each stage reflecting actual project progress rather than administrative milestones
Set up crew reporting so installation contractors or crews update the Atlas status in real time as each fixture is converted — project managers don't need to wait for daily reports to know which fixtures were completed today
Link energy meter or billing records to the project layer so actual energy consumption before and after conversion is captured at the fixture level rather than only at the district billing level
Configure photo documentation requirements — before photo showing existing fixture type, after photo showing installed LED luminaire — as a formal project completion requirement that produces the documentation needed for rebate claims and grant reporting

Also read: GIS for Streetlight Energy Efficiency

Step 4: Execute the Retrofit in Geographic Phases

Phased geographic execution is more efficient than random-sequence installation:

Complete all fixtures in a geographic phase before moving to the next — this minimizes contractor mobilization between work areas and enables district-level energy savings documentation for each completed phase
Coordinate with utility for disconnection and reconnection by geographic phase so utility coordination is batched rather than requiring individual utility contact for each fixture
Order materials by phase using the confirmed fixture count and pole status for each geographic group — bulk procurement by phase reduces unit costs versus fixture-by-fixture ordering
Track fixture-level installation completion in Atlas mobile as crews complete each installation — the project map updates in real time, showing project managers the current completion status across all phases
Conduct post-installation photometric verification for a sample of completed fixtures in each phase to confirm LED luminaires are meeting design light levels before the project moves to the next phase

Step 5: Document Outcomes for Energy and Financial Reporting

LED retrofit documentation is required for most funding sources:

Calculate post-retrofit energy consumption for each completed phase by multiplying installed LED wattage by operating hours per year — compare to the pre-retrofit baseline calculated from the same fixtures for the documented energy savings
Aggregate rebate documentation by phase using the fixture count, technology type replaced, and LED type installed — utility rebate claims require fixture-level documentation that the project tracking system should produce automatically
Document grant-required metrics including installation date, fixture location, fixture type replaced, LED type installed, and energy savings calculation — organized by the reporting period structure the grant program uses
Produce a project completion map showing all converted fixtures colored by completion date, providing a geographic record of project execution for final project reporting and council presentation

Step 6: Transition Converted Fixtures to Standard Maintenance

Retrofitted fixtures need to enter the normal maintenance program:

Update every converted fixture record in the main inventory with new technology type, wattage, installation date, and warranty information — the retrofit completion is also an inventory update event
Assign LED-appropriate maintenance schedules to converted fixtures — LED fixtures have different inspection intervals and component replacement schedules than the HPS or MH fixtures they replaced
Close out the retrofit project layer by confirming every fixture in the project scope has a completion record — any fixture still showing "Scheduled" or "In Progress" at project close needs investigation
Set LED warranty tracking for each converted fixture so warranty-covered failures are handled through the warranty claim process rather than the regular maintenance budget

Use Cases

Planning an LED streetlight retrofit matters for:

Municipal public works departments with legacy HPS or MH fixture inventories who are preparing to convert to LED under capital improvement programs, energy efficiency initiatives, or utility rebate programs
Utility companies with streetlight service agreements managing LED conversion programs for municipal clients, where fixture-level tracking and energy savings documentation are required for program reporting and billing
Transportation departments managing highway lighting LED conversions funded by federal transportation programs that require documented project scope, installation progress, and energy savings outcomes
Engineering firms planning LED retrofit projects for municipal clients who need a spatial planning tool that organizes the fixture inventory, generates the priority sequence, and tracks installation progress throughout the project
Public works departments applying for energy efficiency grants who need documented pre-retrofit inventory, post-retrofit energy savings calculations, and geographic project completion records for grant compliance reporting

It matters for any organization where an LED retrofit is planned but the fixture inventory isn't organized spatially well enough to execute the project by geographic phase rather than in whatever sequence is convenient.

Tips

Audit pole condition before finalizing the project budget — a retrofit plan built on an inventory where pole condition is unknown will encounter mid-project surprises that require scope and budget revision; the audit cost is small compared to the budget surprise
Build the post-retrofit maintenance schedule before the retrofit starts — knowing what LED-specific maintenance will be required after conversion affects the choice of LED product type and the contract terms if a maintenance contractor is involved
Phase the project so each phase produces documented energy savings — a multi-year phased project that documents energy savings by phase produces ongoing evidence of program value that a single lump-sum completion report cannot
Negotiate bulk procurement by phase rather than one-time procurement for the whole project — technology and pricing change over multi-year projects; phase-by-phase procurement allows specification updates between phases
Don't retire the pre-retrofit inventory data — the original fixture type, wattage, and installation date for every replaced fixture is needed for energy savings calculations, rebate documentation, and grant reporting long after the replaced luminaire is in a landfill

An LED retrofit planned and tracked in Atlas is a project that can document its own outcomes — with the geographic, fixture-level evidence that grant programs, utility rebate programs, and council presentations require.

LED Retrofit Planning with Atlas

Planning an LED retrofit requires a spatial inventory that shows every fixture's current technology, condition, and pole status — and a tracking workflow that follows each fixture from prioritization through installation to post-retrofit maintenance. Atlas gives you both without requiring separate project management software.

From Inventory to Project Plan

With Atlas you can:

Score retrofit priority for every fixture using composite criteria — wattage, age, condition, location — and group results into geographic phases for efficient installation sequencing
Track installation progress in real time as crews update fixture status in Atlas mobile, giving project managers current completion status across all phases without daily crew reports
Generate energy savings documentation from actual pre-retrofit wattage and post-retrofit wattage at the fixture level, producing rebate claim and grant report data automatically

Also read: Streetlight Performance Reporting

Documentation That Supports Every Funding Program

Atlas lets you:

Produce fixture-level energy savings calculations for utility rebate claims and energy efficiency grant reporting with data drawn from the retrofit project layer rather than assembled manually
Export geographic project completion records showing installation dates and locations for grant program reporting, final project documentation, and council presentations
Update converted fixtures in the main inventory with LED specifications and warranty information at project close so they immediately enter the normal maintenance and inspection program with appropriate schedules

That means retrofit project documentation that's complete, verifiable, and organized — without a separate spreadsheet for every funding program's reporting requirements.

Retrofit Planning at Any Scale

Whether you're planning a 200-fixture retrofit in a small municipality or a 30,000-fixture multi-year conversion program, Atlas manages the inventory, prioritization, installation tracking, and documentation without specialized project management software.

It's LED retrofit planning built for public works — connected to your existing fixture inventory and maintenance workflow.

Start Planning Your LED Retrofit Today

Efficient LED retrofit execution starts with a spatial inventory that tells you what you have, what needs replacement first, and where it is. Atlas gives you the planning tools, installation tracking, and outcome documentation that LED retrofit projects require.

In this article, we covered how to plan an LED streetlight retrofit — from building the inventory baseline and prioritizing candidates to designing installation tracking, executing in phases, documenting outcomes, and transitioning to LED maintenance schedules.

From the initial prioritization through installation completion, energy savings documentation, and post-retrofit maintenance, Atlas supports the complete LED retrofit lifecycle without additional software.

So whether you're planning your first LED conversion or managing a multi-year phased retrofit program, Atlas gives you the spatial planning and tracking tools the project requires.