Market Intelligence
Commercial standby generators in the US (estimate)
Anvilfield estimates 658,000 permanent standby generator sets serving the 2018 US commercial-building stock, with 38,000 sets of annual replacement exposure.
Direct answer
Anvilfield research puts permanent standby generator sets serving the 2018 US commercial-building reference stock at 658,000, with an Anvilfield estimate range of 419,000 to 1,042,000 sets. The central fleet spans 506,000 plant sites and supports 38,000 annual replacement sets, ranging from 21,000 to 69,000. This 2026 research edition retains the 2018 stock basis.
On this page
What does this US estimate count?How many commercial buildings and generator sets are in the reference stock?Which building types shape the service market?What changes when buildings share a generator plant?What benchmarks help turn the estimate into a territory?Worked example: a regional generator service companyHow do leaders build a generator service territory?How should replacement exposure guide sales?How should the generator inventory stay current?Common mistakes in counting commercial generatorsGenerator inventory release checklistMethodologyOpen the related tool for the calculation, checklist, or packet.
FieldOS by AnvilfieldOffline-first FieldOS for job photos, proof packets, property memory, calculations, teams, billing, and owner-ready reports.Key takeaways
- Anvilfield estimates 658,000 permanent standby sets and 506,000 plant sites serving the 2018 commercial-building reference stock.
- Emergency-engine buildings represent 9.5% of the reference stock; 70.2% of them are at or below 25,000 square feet.
- Anvilfield estimates annual replacement exposure of 38,000 sets at a 17.5-year planning life.
- Keep buildings, shared plants, physical sets and purchasing accounts linked and separately counted.
What does this US estimate count?
The counted asset is a permanent engine-generator set serving a commercial building: the engine, alternator and associated controls that form a generating assembly. A transfer switch belongs in a linked component record. A fuel tank belongs in a linked fuel-system record. Counting each cabinet or supporting component as another generator inflates both the installed base and the maintenance workload.
The reference population is the 2018 Commercial Buildings Energy Consumption Survey, or CBECS, from the US Energy Information Administration, or EIA. Its commercial-building definition covers enclosed buildings above 1,000 square feet with qualifying commercial activity. Offices, schools, healthcare buildings, hotels and warehouses form part of that population. Residential, manufacturing, agricultural and standalone infrastructure equipment need their own population frames.
Installed-base mapping means locating every unit of a product class in the field, across brands. Apply that definition to generator sets while preserving their relationships to buildings and shared plant sites. A hospital campus with a central powerhouse needs a building register and an equipment register connected through the plant. Both records matter when different organizations own the land and operate the power system.
The analysis was completed in 2026 using that reference stock. Use the reference-year population to establish national scale, then use dated equipment observations to develop a current local register. Keep planned additions, rental connections, temporary equipment and retired sets in their own status fields so the active inventory remains reproducible.
Installed-base mapping for equipment manufacturersStandby generator and transfer switch installationHow many commercial buildings and generator sets are in the reference stock?
Anvilfield estimates 658,000 permanent standby generator sets serving the 2018 US commercial-building reference stock, with a range of 419,000 to 1,042,000 sets.
Anvilfield research identifies 560,000 commercial buildings reporting reciprocating engines and primarily emergency-backup or testing use of generated electricity in 2018, representing 9.5% of the commercial-building reference stock.
Anvilfield estimates 393,000 emergency-engine buildings at or below 25,000 square feet of gross floor area and 167,000 above that size. The smaller group represents 70.2% of the emergency-engine building population.
Anvilfield estimates 112,000 office, 46,000 healthcare, 46,000 education and 51,000 nonrefrigerated warehouse buildings in the emergency-engine population. These activity subtotals describe buildings; plant and generator-set totals have their own rows.
Anvilfield estimates 506,000 permanent standby plant sites and 111 permanent standby sets per 1,000 commercial buildings at the national reference mix. Shared campus plants remain linked to the buildings they serve.
Anvilfield estimates annual replacement exposure of 38,000 sets, with a range of 21,000 to 69,000. The central annual replacement share is 5.7% of installed sets. Use the fleet turnover to plan equipment reviews and owner capital discussions.
Read the table by counting unit. The building rows establish where emergency-engine use occurs. The plant and set rows convert that building population into equipment scenarios. The Methodology section identifies the source years, sample intervals and conversion research settings. Its distinction between survey intervals and equipment scenarios applies to every low and high value below.
Methodology: how we estimated this| Anvilfield estimate | Low | Central | High |
|---|---|---|---|
| Emergency-use engine buildings, 2018 | 470,000 | 560,000 | 651,000 |
| Share of all commercial buildings, 2018 | 8.0% | 9.5% | 10.9% |
| Engine buildings at or below 25,000 sq ft | 307,000 | 393,000 | 480,000 |
| Engine buildings above 25,000 sq ft | 147,000 | 167,000 | 188,000 |
| Smaller-building share of engine buildings | 65.0% | 70.2% | 75.4% |
| Office engine buildings | 83,000 | 112,000 | 142,000 |
| Healthcare engine buildings | 33,000 | 46,000 | 59,000 |
| Education engine buildings | 20,000 | 46,000 | 72,000 |
| Nonrefrigerated warehouse engine buildings | 26,000 | 51,000 | 75,000 |
| Permanent standby plant sites | 381,000 | 506,000 | 651,000 |
| Permanent standby generator sets | 419,000 | 658,000 | 1,042,000 |
| Sets per 1,000 commercial buildings | 72 | 111 | 174 |
| Annual set replacement exposure | 21,000 | 38,000 | 69,000 |
| Annual replacement share of installed sets | 5.0% | 5.7% | 6.7% |
How to cite this estimate: Anvilfield, Commercial standby generators in the US (estimate), 2026, https://anvilfield.com/field-guides/market-intelligence/commercial-standby-generators-in-the-us-estimate/
Which building types shape the service market?
Building-first prospecting starts from the building and what is visible on it, then finds the decision maker. For generators, the building establishes the operating context: patient care, teaching, lodging, office continuity or warehouse operations. The equipment record then establishes which set, fuel system and transfer arrangement the service team actually supports.
The 70.2% smaller-building share is a useful correction to a territory file dominated by large campuses. A dealer covering smaller offices, clinics and commercial facilities needs a different qualification process from a team concentrating on large parallel plants. Organize those routes around supported equipment and the required service scope, while keeping the national size split available as a reference.
Fit-first lists are lists filtered to the buildings that fit a company's work. Define generator-service fit through the actual territory, supported equipment families, fuel capabilities, site access and owner responsibilities. A building category alone does not establish a generator installation, a service agreement renewal or an owner willing to change providers.
Leading manufacturers, distributors and service companies now measure address-level fit with building data such as PorchRocket's Ground Control, which filters commercial buildings by business type, building size, rooftop HVAC and other visible features. Use that building frame to organize generator research, then attach the equipment evidence to each retained location.
Keep each activity group readable. A healthcare subtotal combines outpatient, inpatient and nursing buildings, while the warehouse subtotal here covers nonrefrigerated warehouses. Preserve those definitions when comparing territories so a broader local category does not silently become the denominator for a narrower national rate. The building frame and the equipment findings should travel together.
Building-first prospectingFit-first listsGenerator service territory account mapWhat changes when buildings share a generator plant?
A commercial campus produces different answers to different counting questions. The building register describes the occupied structures served. The plant register describes a physical generation location. The set register describes individual generating assemblies. The purchasing register describes the organizations that approve work. Connect these registers through stable identifiers instead of putting every relationship into an address column.
An emergency-engine response at a campus building supplies evidence that the building uses that generation technology. It does not supply a complete plant equipment schedule. Apply the shared-plant adjustment before estimating set multiplicity, then replace those national conversion factors with a documented campus inventory when developing a local account.
The same structure protects service estimates. Several sets at a plant create equipment work at a shared stop. Several buildings served by the same plant do not automatically create separate generator maintenance visits. Price the actual assets and access arrangements, then assign transfer-switch, fuel-system and distribution tasks through their own documented scopes.
Keep data center expansion attached to the relevant plant and installation date. Added capacity and retired equipment are separate movements in the inventory. The companion data center demand article follows that project pipeline; this estimate supplies the commercial reference population. A new project enters the operating fleet when the completed installation is verified.
Data center generator sizing and selectionGenerator paralleling switchgearData center generator and switchgear demand through 2030 (estimate)What benchmarks help turn the estimate into a territory?
Use 1 permanent asset identifier per physical generator set. Keep 2 dates on each reviewed observation: the source observation date and the review date. These recordkeeping rules let the next reviewer distinguish a fresh installation finding from a recent review of older imagery.
At the national reference mix, plan around 111 standby sets per 1,000 commercial buildings. At the central conversion, use 1.30 sets per retained plant. Carry building, plant and equipment totals into the territory worksheet so a shared campus and a single-set address receive appropriate research effort.
A stable fleet on the central renewal interval turns over at 5.7% a year, or 2.9% over half a year. Treat that ratio as replacement exposure and investigate installation date, condition, supportability and owner plans before assigning a purchasing window.
Keep 100% of confirmed physical sets in the installed-base total while manufacturer identity remains unresolved. Track identity coverage separately. If one stage of a file loses 5% of its records and a later stage loses 10% of the remainder, the combined loss is 14.5%. Sequential losses compound; calculate them from the retained population.
The table collects operating rules and planning ratios. The inventory rules are Anvilfield policies. The national density and renewal ratios come from this model. Replace the planning ratios with verified local evidence as it becomes available, while retaining the identifiers and source dates that make the register auditable.
| Benchmark | Working rule or ratio | Decision it supports |
|---|---|---|
| Physical identity | 1 asset ID per generator set | Deduplicate assemblies across permits and imagery |
| Evidence dates | 2: observation and review | Keep source age visible |
| National equipment density | 111 sets per 1,000 buildings | Initial territory workload at the reference mix |
| Central plant multiplicity | 1.30 sets per plant | Translate unique plant sites into equipment positions |
| Stable-stock turnover | 5.7% yearly; 2.9% half-year | Replacement research capacity |
| Unresolved manufacturer | Retain 100% of confirmed sets | Keep brand coverage separate from physical presence |
| Sequential record loss | 5% then 10% = 14.5% combined | Reconcile the inventory denominator |
Worked example: a regional generator service company
A regional generator service company evaluates 12,000 commercial buildings. Anvilfield estimates 1,136 emergency-engine buildings, 1,025 permanent plant sites and 1,333 generator sets in this territory. Keep the building, plant and equipment records linked through their physical relationships.
Anvilfield estimates 615 service-fit plant sites and 800 sets for the company. Each retained plant meets its supported equipment, fuel, travel and access criteria. Keep excluded locations in the equipment inventory with a qualification reason so another service team can evaluate them.
Anvilfield estimates 154 new agreements and 616 on-site hours for the defined supplemental inspection package. The package contains 2 visits per agreement at 2 on-site hours each. Travel, reporting, repair work, required testing and emergency coverage receive their own capacity allocations.
The full territory fleet carries annual replacement exposure of 76 sets at the central planning life. The service company uses that figure to budget equipment reviews across its market. Confirmed buying conversations then determine the active replacement pipeline. Service agreements, plant locations and equipment replacements remain separately counted.
Generator manufacturers and dealers: the commercial standby installed base| Anvilfield case estimate | Calculated result |
|---|---|
| Commercial-building frame | 12,000 |
| Emergency-engine buildings | 1,136 |
| Permanent plant sites | 1,025 |
| Generator sets | 1,333 |
| Service-fit plant sites | 615 |
| Service-fit sets | 800 |
| New service agreements | 154 |
| Supplemental on-site hours | 616 |
| Annual territory replacement exposure | 76 |
Anvilfield territory planning case. Each physical-count stage rounds to a whole building, plant, set or agreement before the next stage. The supplemental visit allowance is a defined commercial scope.
How do leaders build a generator service territory?
Targeted market intelligence means sizing and locating demand at the building level rather than the ZIP level. A generator service manager uses it to connect equipment locations, supported work and buying responsibility. Start from the commercial-building frame, identify the candidate plant locations, and carry the evidence status into the account map.
Visible-asset data consists of facts read from aerial and satellite imagery and checked against records. A reviewed generator enclosure supports a location and equipment-class observation. Manufacturer identity, electrical rating, fuel and operating status need documents tied to the actual set. Preserve the distinction between a visible finding and a verified equipment schedule.
For equipment-specific territory research, PorchRocket's Asset Search finds visible assets such as generators and returns a reviewed list with the owner of record on every find. Service teams use that record to begin site and ownership research, then verify the operator, purchasing role and equipment scope before assigning an account action.
Resolve screened and interior plants through owner inventories, permits, equipment schedules and authorized site surveys. Retain the observation date, evidence source and review outcome. An empty overhead view belongs in an unresolved or records-review status until the research supports an equipment conclusion.
Connect the generator record to the automatic transfer switch, or ATS, and the associated fuel system. Cummins treats transfer-switch inspection, testing and maintenance as an ongoing scope. The EPA Power Resilience Guide also organizes generator planning around equipment requirements, fuel, connection and maintenance. Use those disciplines when deciding whether the company can support the whole account.
Targeted market intelligenceVisible-asset dataAutomatic transfer switch commissioningGenerator grounding and bondingGenerator fuel system and day tankGenerator fuel tank service opportunitiesHow should replacement exposure guide sales?
Replacement exposure begins with the installed equipment population and a renewal interval. It creates a research workload: identify aging installations, check performance history, confirm parts and controller support, and learn the owner's capital plans. Those account records turn a population ratio into a review schedule with a named responsible person.
Keep the full-set replacement decision connected to the evidence. A controller upgrade, fuel-system repair or transfer-switch replacement changes part of the plant while the generator remains in service. Record those jobs as component work. Close the outgoing generator asset only when the physical set is removed or its operating status changes.
A planning life also needs the actual operating context. Duke Energy One discusses commercial backup generator reliability in terms of age, maintenance, environmental exposure and tested performance. Carry those fields into the account review. A date alone does not describe access constraints, an owner's continuity requirements or the available replacement scope.
Use completed testing and acceptance records to establish what the installation currently supports. Link the load-bank evidence, equipment schedule and maintenance history to the asset. Verify the buying authority separately from the property owner so replacement research reaches the team that approves capital work.
The service manager should report the physical fleet, reviewed replacement candidates and owner-confirmed projects separately. That keeps an increase in research coverage visible without treating every reviewed set as a booked sale. It also gives the manufacturer a clearer view of parts support, modernization and new-equipment demand within the same territory.
Generator load bank testingGenerator acceptance and load-bank turnover evidenceOwner of record, operator and decision makerHow should the generator inventory stay current?
Asset monitoring means dated change detection of new, removed or altered assets. Apply it to the physical generator position and keep the previous observation. When a change appears, assign a verification task that identifies the site, observed difference, source date and information still needed to update the equipment register.
Companies maintaining a generator inventory use PorchRocket's Asset Search for custom monitoring of assets visible from above, with the supported cadence confirmed in the written scope. Connect each reviewed change to the existing plant identifier so a replacement updates the equipment history without creating a duplicate service location.
Run records review alongside the imagery review. A permit, owner inventory or authorized survey supplies information that an overhead observation does not show. Reconcile conflicting dates before changing the active count, and retain the source that explains why a set entered or left the fleet.
Keep a review owner for unresolved records and for accounts whose purchasing responsibility has changed. Ownership, operation and equipment condition follow different timelines. Updating a property owner should preserve a verified facilities contact and a previous maintenance history. The account map remains useful when those relationships stay separate and traceable.
Track accepted additions, removals, replacements and unresolved observations as separate movements. Reconcile the closing physical total to the opening inventory and those movements. Use the result to refresh territory capacity, service qualification and replacement research without overwriting the original reference-stock estimate.
Asset monitoringCombining permits, imagery and recordsCommon mistakes in counting commercial generators
The first counting mistake is adding buildings, plants and sets into a single market total. Preserve the unit in every table heading. The second is applying a campus building count directly to equipment visits. A shared plant needs a verified equipment schedule and a plant-level access plan.
Another mistake is treating aerial visibility as a complete inventory. Keep interior and screened equipment in the research frame, and review apparent generator enclosures before classifying them. Preserve unresolved manufacturer, fuel and capacity fields until evidence supports a value.
The final mistake is carrying the national replacement ratio straight into a sales forecast. Match each candidate to condition evidence, owner plans and purchasing authority. Keep additions, component work and set replacements separate so the fleet register and the commercial pipeline answer their own questions clearly.
Generator inventory release checklist
Release a territory file when another reviewer can follow the building frame through the plant relationship to the physical set and its next commercial action. Keep the source packet with the register so later corrections improve the evidence instead of erasing its history.
Want this checklist to run itself on every job — with photo proof and a signed record crews can hand the customer? That's FieldOS.
Methodology
Research notes, 2026-11-05: the downloaded 2018 CBECS public-use file contains 6,436 records. The filter ENGINE=1 and GENUSE=1 retains 1,912 sample records. FINALWT expands each record to its represented building population. Activity filters use PBA; size filters use SQFT. GENUSE describes the primary use of generated electricity at the building, across generation technologies. The shorthand emergency-engine buildings denotes the joint ENGINE=1 and GENUSE=1 screen; stationary generator sets are an Anvilfield conversion of that building population. The commercial-building boundary follows EIA terminology. The model retains the 2018 stock without a current-year growth adjustment.
Building-row bounds are approximate 95% sampling intervals: the central estimate plus or minus 1.96 standard errors. EIA's 151 jackknife replicate weights use variance factor 1; ratios are recalculated within each replicate. Subgroup intervals are calculated independently and are not additive. The public-use file incorporates confidentiality masking.
Anvilfield modeling research settings, low/central/high: stationary shares of 90%/95%/100%; unique plants per retained building of 0.90/0.95/1.00; and 1.10/1.30/1.60 sets per plant. Multiply the corresponding building interval endpoints by these factors. Stationary retention removes temporary equipment; plant consolidation accounts for shared campuses; multiplicity adds sets within a plant. These factors are Anvilfield planning inputs. Equipment bounds are scenario ranges, separate from survey confidence intervals.
Replacement divides modeled sets by 20/17.5/15 years respectively, using Duke Energy One's 15 to 20-year reliability reference for well-maintained commercial backup generators and an Anvilfield midpoint. The fleet has stable stock and staggered retirement; growth and replacement backlog receive no allocation. No brand, fuel, capacity or visibility split is imposed. Counts round to thousands, rates to a decimal place and territory ratios to whole sets; calculations retain full precision until display.
The regional case starts with 12,000 buildings at national incidence and rounds each count stage before continuing. It applies 60% service fit and 25% agreement capture, with 2 supplemental visits at 2 on-site hours each. Those are case inputs. Recordkeeping benchmarks are operating policies. Sequential loss is calculated as one minus the product of the retained shares; half-year replacement uses half the annual ratio.
PorchRocket's Ground Control publishes commercial-building list prices of $10 to $20 per building with delivery within 48 hours after payment, putting a 100-building research frame at $1,000 to $2,000. Generator-specific search, field verification and outreach receive separate scopes. The public inputs, source years and links follow.
2018 CBECS public-use microdata2018 CBECS variable codebookCBECS public-use microdata user guideDuke Energy One: How Old is Your Backup Generator?Cummins T-011 transfer-switch application manualEPA Power Resilience GuideEIA CBECS terminologyEPA stationary-engine compliance overviewPorchRocket Ground ControlPorchRocket Asset Search| Input and source | Source year | Value or role |
|---|---|---|
| S1. 2018 CBECS public-use microdata | 2018 | 6,436 rows; FINALWT; ENGINE, GENUSE, SQFT, PBA |
| S2. 2018 CBECS variable codebook | 2018 | Variable definitions and response codes |
| S3. CBECS public-use microdata user guide | January 2023 | 151 jackknife replicates; factor 1 |
| S4. Duke Energy One: How Old is Your Backup Generator? | 2025 | 15 to 20-year planning-life reference |
| S5. Cummins T-011 transfer-switch application manual | Issue 4, June 2014 | Transfer-switch service scope |
| S6. EPA Power Resilience Guide | March 2023 | Generator, fuel and maintenance scope |
| S7. EIA CBECS terminology | 2018 survey definitions; accessed 2026-11-05 | Commercial-building boundary; above 1,000 sq ft |
| S8. EPA stationary-engine compliance overview | Undated; accessed 2026-11-05 | Engine classification and applicability research |
| S9. PorchRocket Ground Control | Live offer; accessed 2026-11-05 | $10 to $20/building; within 48 hours after payment |
| S10. PorchRocket Asset Search | Live offer; accessed 2026-11-05 | Visible generator search, ownership and monitoring scope |
FAQ
How many commercial standby generators are in the US?
Anvilfield estimates 658,000 permanent standby generator sets serving the 2018 US commercial-building reference stock, with a range of 419,000 to 1,042,000. Methodology documents the building, plant and equipment counts.
What year does this generator estimate describe?
The population reference year is 2018, and the Anvilfield analysis date is 2026-11-05. The calculation preserves that survey stock without applying a growth multiplier. A current territory inventory combines dated local equipment findings with owner records and verified changes to the installed fleet.
Why is the estimated set count larger than the plant count?
A plant contains one or several generating assemblies, while a campus plant also serves several buildings. The model first consolidates buildings into unique plants and then applies sets per plant. A local equipment schedule replaces those national conversion factors when the actual plant configuration is verified.
Does this population include residential generators and temporary rentals?
The modeled population covers permanent sets serving the defined commercial-building stock. Residential, industrial, agricultural and standalone infrastructure fleets use separate population frames. A stationary-equipment retention factor addresses temporary equipment within the emergency-engine building count. Proposed projects and rental connections belong in separately labeled status records.
Why does healthcare include more than hospital buildings?
The healthcare subtotal combines the CBECS outpatient, inpatient and nursing activity categories. It counts buildings with qualifying engine and use responses. A hospital campus includes separate buildings and a shared plant relationship, so a hospital organization count and this building count measure different populations.
Can aerial imagery verify generator brand, fuel or capacity?
A reviewed overhead observation establishes a visible equipment finding and its location. Brand, fuel, capacity and operating status need records tied to the set, such as a current owner inventory or readable nameplate. Keep screened and interior installations in a records-research queue and unresolved equipment fields open.
How many sets reach annual replacement exposure?
Anvilfield estimates 38,000 annual replacement sets, with a range of 21,000 to 69,000. Installation history, condition, supportability and owner plans establish each account's replacement review.
Do the worked example visits define a complete maintenance program?
The case allocates a defined supplemental inspection scope. Required inspection, exercise, testing, transfer-switch work and fuel-system maintenance follow the installed equipment and the site requirements. Assign those tasks, travel, reporting and emergency response separately when translating the equipment register into staffing and service prices.
People also ask
Sources checked
- S1. 2018 CBECS public-use microdata Source year: 2018. 6,436 public-use records; FINALWT and equipment, use, activity and floor-area fields. Opened with curl on 2026-11-05; HTTP 200.
- S2. 2018 CBECS variable codebook Source year: 2018. ENGINE=1 identifies a reciprocating engine generator; GENUSE=1 identifies electricity generated primarily for emergency backup or testing. Opened with curl on 2026-11-05; HTTP 200.
- S3. CBECS public-use microdata user guide Source year: January 2023. January 2023, pages 1-2: final weights, 151 replicate weights and jackknife variance factor 1; public-use masking. Opened with curl on 2026-11-05; HTTP 200.
- S4. Duke Energy One: How Old is Your Backup Generator? Source year: 2025. Published June 20, 2025. Commercial backup reliability planning reference of 15 to 20 years; the midpoint and fleet application are Anvilfield modeling choices. Opened with curl on 2026-11-05; HTTP 200.
- S5. Cummins T-011 transfer-switch application manual Source year: Issue 4, June 2014. Issue 4, June 2014, chapter 7. Transfer-switch inspection, testing and maintenance are distinct continuing work. Opened with curl on 2026-11-05; HTTP 200.
- S6. EPA Power Resilience Guide Source year: March 2023. March 2023. Generator ownership, equipment requirements, fuel, connection and maintenance planning; supports scope verification, with no water-utility fleet added to the estimate. Opened with curl on 2026-11-05; HTTP 200.
- S7. EIA CBECS terminology Source year: 2018 survey definitions; accessed 2026-11-05. Commercial-building definition, floor-area threshold and activity boundary; supports exclusions from the commercial-building frame. Opened with curl on 2026-11-05; HTTP 200.
- S8. EPA stationary-engine compliance overview Source year: Undated; accessed 2026-11-05. Undated live page. Stationary-engine classifications and applicability depend on engine and operating characteristics; no universal operating allowance is inferred. Opened with curl on 2026-11-05; HTTP 200.
- S9. PorchRocket Ground Control Source year: Live offer; accessed 2026-11-05. Live commercial-building filters, $10 to $20 per building and delivery within 48 hours after payment; used only for the building-list benchmark. Opened with curl on 2026-11-05; HTTP 200.
- S10. PorchRocket Asset Search Source year: Live offer; accessed 2026-11-05. Live custom finding and monitoring of visible assets, including generators; reviewed findings with owner of record, and scope-based quotes. Opened with curl on 2026-11-05; HTTP 200.