The cheapest megawatt-hour is the one sited well: land that closes, permits that issue, neighbors that stay neutral, and a grid connection that does not eat the returns. Site selection software has become the front end of the entire renewable development funnel — and the platforms in it answer very different questions. This guide compares the land-intelligence, environmental-risk, and resource-data layers on identical criteria, and shows how disciplined teams sequence them before the first option payment.
Land data & owner outreach: LandGate — parcel-level values, listings, and PowerVal project economics.
Environmental & permitting risk: Transect — desktop due diligence before consultants mobilize.
Resource-side prefeasibility: Solargis Prospect — bankable-grade solar data from €2,400/yr.
GIS foundation: Esri ArcGIS — the platform siting teams build custom workflows on.
Free global first pass: Global Solar Atlas & Global Wind Atlas.
Scope: software for finding, screening, and de-risking renewable project sites — land and parcel intelligence, environmental and permitting risk, resource prefeasibility, and the GIS layer beneath them. Interconnection analytics are covered in our companion grid guide; detailed engineering design in our solar design comparison. Six entries, identical criteria; order follows the screening workflow, not rank.
Criteria: data coverage, analytical focus, who uses it, licensing model, geographic reach, and the main tradeoff. Coverage here splits sharply between the quote-based US land-tech platforms and the resource-data tools with public price lists — figures are cited where public (checked September 19, 2026).
At a Glance
| Platform | Pricing | Best For | Link |
|---|---|---|---|
| Paces | Subscription (quote-based) | AI screening of buildable land & permits | paces.com → |
| LandGate | Subscriptions & data products (quote-based) | Parcel data, valuations, owner engagement | landgate.com → |
| Transect | Reports & subscription (quote-based; free mini-report) | Environmental & permitting due diligence | transect.com → |
| Solargis Prospect | Public price list — €2,400–4,800/yr | Solar prefeasibility on bankable data | solargis.com → |
| Esri ArcGIS | Tiered subscriptions (quote-based at org level) | Custom siting workflows & data fusion | esri.com → |
| Global Solar/Wind Atlas | Free | First-pass resource screening anywhere | globalsolaratlas.info → |
Pricing checked September 19, 2026. Most platforms in this category sell quote-based enterprise plans; where we cite figures they come from vendor pages or published third-party comparisons and are order-of-magnitude indications, not offers. Billing basis (per user, per MW, per site) varies by vendor — confirm current terms directly before budgeting.
The Platforms in Detail
Paces
The development screener
Best for: US developers who want software, not spreadsheets, deciding which parcels are worth a first phone call.
| Data focus | Buildable land, zoning and permitting signals, constraint layers across US markets |
| Analytical focus | AI-assisted screening that ranks developable sites against technology-specific criteria |
| Typical users | Solar, storage, and data-center-adjacent developers; greenfield origination teams |
| Licensing | Annual subscription; quote-based |
| Traction signal | $11M Series A (2024); positioned squarely on the origination bottleneck |
| Main tradeoff | Screening breadth, not legal certainty — title, ALTA, and county nuance still need humans |
- Compresses the first month of origination into hours: constraint-screened, ranked parcels replace the intern-with-a-county-GIS workflow.
- Permitting signals at screening time — setbacks, moratoria, zoning posture — move the most common project-killer to the front of the funnel where it is cheap.
- Built for portfolio origination: teams sweeping many counties at once get the most from its ranking approach.
LandGate
The land marketplace & valuer
Best for: teams that need parcel-level ownership, value, and resource data — and a channel to owners already listing for energy.
| Data focus | US parcel ownership, land listings, and resource/infrastructure layers |
| Analytical focus | PowerVal-style project valuations and due-diligence data on specific parcels |
| Typical users | Developers, land agents, and landowners on the other side of the same table |
| Licensing | Subscriptions and data products; quote-based |
| Traction signal | A two-sided model — owner listings plus developer tooling — unusual in this category |
| Main tradeoff | US-centric, and marketplace incentives sit alongside the analytics |
- Owner-side reach is the differentiator: parcels listed by motivated landowners shortcut the coldest part of land origination.
- Parcel-level valuation context supports option and lease negotiations with something better than county comps folklore.
- Layered resource and infrastructure data turns a land conversation and a feasibility conversation into one screen.
Transect
The environmental early-warning system
Best for: developers who want environmental and permitting risk quantified before consultants, agencies, and clocks get involved.
| Data focus | Species, wetlands, cultural and regulatory layers; state and local permitting intelligence; community sentiment |
| Analytical focus | Automated desktop due-diligence reports with expert review available |
| Typical users | Solar, wind, storage developers; EPCs; environmental consultancies; utilities and data centers |
| Licensing | Reports and subscriptions; quote-based — free mini-report to start |
| Traction signal | A recognizable standard for desktop environmental screening in US renewables |
| Main tradeoff | Desktop screening bounds risk — field surveys still decide the hard cases |
- Moves the environmental veto to day one: a wetlands or listed-species flag before site control costs a report, not a project.
- Permitting intelligence — which counties, which agencies, which timelines — converts anecdote into a comparable screening layer.
- Community-sentiment signals acknowledge what veterans know: local opposition kills more projects than physics does.
Solargis Prospect
Resource truth, early and cheap
Best for: teams that want the resource side of prefeasibility on the same data family lenders will later see.
| Data focus | Satellite-derived solar resource, meteo, and terrain data with global coverage |
| Analytical focus | Prefeasibility: site comparison, indicative yield, and loss context before engineering design |
| Typical users | Developers and investors screening portfolios; consultants running early studies |
| Licensing | Public price list — Basic €2,400/yr (5 users, 500 projects), Professional €4,800/yr (10 users, 1,000 projects); Evaluate for deeper simulation at €12,000/yr. Checked September 19, 2026 |
| Traction signal | Solargis data is a bankability staple in yield reports worldwide |
| Main tradeoff | Solar-centric — wind teams look to the atlases and wind-specific tools |
- Screening on the data family your eventual yield report will cite removes a classic late-stage surprise — the prefeasibility number that does not survive bankable data.
- Transparent, genuinely affordable list pricing is rare in this guide — budget certainty at the funnel stage when project counts are highest.
- A clean handoff upward: shortlisted sites graduate into Evaluate or full design tools without changing data vendor mid-story.
Esri ArcGIS
The build-your-own layer
Best for: organizations with GIS talent that want siting logic as a proprietary asset rather than a vendor feature.
| Data focus | Whatever you load: parcels, constraints, LIDAR, imagery, proprietary layers |
| Analytical focus | Full GIS analytics — suitability modeling, buffers, terrain, custom scoring |
| Typical users | Utilities, large developers, consultancies with in-house GIS teams |
| Licensing | Tiered user subscriptions; organizational pricing effectively quote-based |
| Traction signal | The default GIS platform across the industries this category serves |
| Main tradeoff | A platform, not a product — value arrives only with skilled builders and good data |
- Unlimited flexibility: any constraint your strategy cares about — tribal consultation buffers, tile-drainage maps, offtaker adjacency — becomes a first-class siting layer.
- Institutional durability: GIS skills, data contracts, and workflows built here outlive any single vendor in this comparison.
- The honest benchmark: if a specialized platform cannot beat what your GIS team assembles in ArcGIS, it is not worth its subscription.
Global Solar Atlas & Global Wind Atlas
The free first pass
Best for: anyone, anywhere, needing a defensible resource screen before any budget exists.
| Data focus | Global solar (World Bank/Solargis) and wind (DTU/World Bank) resource layers |
| Analytical focus | First-pass resource and indicative yield screening with transparent methodology |
| Typical users | Developers entering new markets, DFIs, students, policymakers |
| Licensing | Free |
| Traction signal | The default reference maps of global renewable resource |
| Main tradeoff | Screening-grade only — no parcel, permitting, or bankable time-series layer |
- Zero-cost triage that keeps expensive tools pointed only at geographies worth their subscriptions.
- Methodological pedigree — Solargis and DTU engines respectively — makes even the free pass citable in early memos.
- Ideal for emerging-market screening where commercial land-tech platforms have no coverage anyway.
Why Siting Software Ate the Origination Funnel
Interconnection queues and permitting timelines quietly inverted the development sequence: land is no longer the scarce input — feasible land is. With queue positions taking years and local opposition hardening, the cost of a bad site is now measured in vintages, not option payments. Software moved upstream accordingly: what consultants once assessed after site control, platforms like Paces and Transect now screen before the first landowner call, and grid-capacity signals from the interconnection stack increasingly join the same screen.
The market has stratified into complements rather than competitors: land intelligence (who owns what, at what value), environmental risk (what will stop you), resource data (what will it yield), and the GIS substrate underneath. Teams that treat this as one integrated funnel — each layer discarding sites cheaply before the next spends money — consistently out-originate teams that treat siting as a map exercise.
Sequencing From Map to Option Agreement
Start free and global: atlas-grade resource screening plus open grid context eliminates most of the world for any given strategy at zero cost. US-focused teams then let Paces-class screening and Transect-class environmental flags fight over the survivors, while LandGate-style parcel intelligence identifies who actually owns the shortlist and what engaging them costs.
Only then does money move: Solargis-grade resource data hardens the yield story on final candidates, ArcGIS-based internal scoring encodes the lessons into repeatable strategy, and legal diligence — title, survey, ALTA — takes over where software honestly stops. The discipline is refusing to reorder the sequence: every option signed before environmental screening is a lottery ticket with a consultant’s invoice attached.
Kurums Match: Which One Fits You?
Pick the statement that sounds most like your situation.
We’re originating greenfield US solar and storage at portfolio scale.
Paces-class screening as the funnel engine, Transect for the environmental veto layer, and LandGate when the conversation turns to specific owners and values. Feed interconnection signals in from day one — the land is only as good as its substation.
We’re entering new international markets with no local land data.
The free atlases plus Solargis Prospect are your honest toolkit — global resource truth at list prices — layered on ArcGIS with whatever national cadastral and constraint data exists. US-centric land-tech platforms will not travel with you.
We keep losing projects late to permits and neighbors.
Move Transect-class screening to the very front of your funnel and add community-sentiment review before site control, not after. The pattern in the post-mortems is almost always the same: the flag existed; nobody paid for it early.
We have a strong GIS team and doubt we need another subscription.
Run the benchmark honestly: one quarter, your ArcGIS stack versus a Paces/Transect trial on the same counties, scored on sites advanced per analyst-hour. Keep whichever wins; many teams end up hybrid — platform screening, proprietary scoring.
Frequently Asked Questions
Do these platforms replace environmental consultants?
No — they re-sequence them. Desktop screening bounds risk and kills obviously fatal sites cheaply; consultants then spend field budgets only on sites that survived, and their surveys still decide permits. The savings come from doing less late work, not from skipping it.
How does site selection software relate to interconnection tools like Nira?
They are converging into one screen. Land answers little if the substation is full; capacity answers little if the county has a moratorium. Mature teams weight grid signals inside their siting score rather than running the two analyses in sequence.
Is any of this useful outside the United States?
The resource layer travels perfectly — the atlases and Solargis are global. The land- and permitting-intelligence layer is US-centric because it feeds on public parcel and regulatory data few countries expose; internationally, ArcGIS plus local datasets remains the workhorse.
What does this software genuinely not know?
Title defects, easements, landowner intent, tribal consultation outcomes, and how a county commission will vote — the human and legal layers. Treat every platform output as a prioritization signal, and let diligence, not dashboards, sign the option.
Related Comparisons & Guides
- Grid interconnection software compared
- Best solar design software compared
- US renewable permitting: the federal maze
- Wind resource assessment software compared
- Australia’s renewable approvals explained
Last updated: September 19, 2026 · Reviewed by the Kurums Startup editorial team.
Disclosure: Kurums currently has no affiliate, sponsorship, or partnership relationship with any product compared on this page. If that changes, this page will say so here and affected links will carry sponsored attributes.
Part of the Kurums Renewable Energy hub — country strategies, permitting, incentives, financing, and tools across nine markets.
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