Layout searched by LCOE
The search optimises levelized cost of energy and shows the land–LCOE frontier. Not a capacity target, and not a manual parameter sweep.
Solar farm design software for utility-scale projects
Find the layout with the lowest LCOE — and see the debt it supports.
Heliosolve optimizes utility-scale PV and PV+BESS layouts by LCOE, assigns strings to inverters automatically and carries the same design through Monte Carlo P50/P90 and DSCR debt sizing. In your browser.
Prefer we design it for you? Design services →
The problem
The same plant, rebuilt three times
The same design gets rebuilt between the layout tool, the yield model and the finance spreadsheet. Every change to the layout means carrying it by hand through the other two.
How it works
One design, from site boundary to debt sizing
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Site
Bring the site boundary as KML/KMZ and set the constraints.
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Layout by LCOE
The search explores pitch, GCR and configuration against levelized cost of energy, with a land–LCOE frontier.
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Strings, MPPT and single-line
String-to-inverter and MPPT assignment by mathematical optimisation, with conductor sizing and the single-line diagram.
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P50/P90 and debt
P50/P90/P99 by Monte Carlo, then CFADS and debt sizing at the DSCR you set.
Why it's different
What changes in the workflow
P50/P90/P99 by Monte Carlo
Uncertainty sources are sampled keeping their correlations, at one year and over the debt term.
Every value tagged by provenance
Each value on screen is marked as typed, estimated or taken from a catalogue, so a reviewer can trace the result back to its input.
Validation
Checked against published references and measured data
- NREL BEST bifacial +1.50% rear-irradiance bias Annual, single-axis tracker, one site.
- Sandia / PVPMC Within 2% Against the Sandia / PVPMC reference models.
- JUST 5 MWp 0.75% deviation Model vs. measured production at one 5 MWp plant.
- NIST Ground Array −1.1% annual energy Against 371 MWh measured, one plant of 1,152 modules, no site calibration.
Every report states its protocol, result and limits. See the protocol →
Fits your stack
Keep PVsyst for the final report. Use Heliosolve to iterate layout and economics.
Two ways to work
Software or service
Use it yourself
Your team runs Heliosolve in the browser: layout, yield and project finance in one workflow, on published per-organization plans.
See pricing →We do it for you
Our engineers design the plant with Heliosolve and hand you the results and the files. Scope and price are set in the quote.
See design services → Pricing
Published pricing, per organization
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Starter
$590/mo
Includes 1 seat · Up to 25 MWp (DC)
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Professional
$1,490/mo
Includes 3 seats · additional seat +$250/mo · Up to 150 MWp (DC)
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Enterprise
from $2,500/mo
Unlimited seats · 150+ MWp and multi-plant portfolios
FAQ
Short answers
Does it replace PVsyst?
Not necessarily. Many teams keep PVsyst for the final yield report and use Heliosolve to iterate layout and economics. How to reconcile the two →
Does it work for a lender's analysis?
It produces P50/P90/P99, CFADS and debt sizing by DSCR in a report structured for lender and independent-engineer review. We do not have a track record of lender acceptance yet. See the validation →
Can I use my own weather data?
Yes. One-click download from PVGIS, NSRDB, NASA POWER and CAMS, or upload your own file (CSV, TMY, EPW, TM2/TM3). See the product →
What can I export, and what if I cancel?
Layout as DXF, KML/KMZ and LandXML; cable schedule and bill of materials as CSV; reports as PDF; the full project as a portable bundle; and an export in PVsyst format that PVsyst can read. Your projects are yours to download at any time. Pricing FAQ →
Can I import projects from other tools?
Not yet. There is no project import from other tools: the site boundary comes in as KML/KMZ and the case is rebuilt from there. See the comparison →
Can you do the design for us?
Yes. Our engineers design the plant with Heliosolve and deliver the results and the files, quoted per project. Design services →
See it run on your own site
We look at your site, run layout → P90 → DSCR live and tell you plainly where Heliosolve does not fit.
Beta
Request
beta access
Not ready for a session? Leave your details and an engineer will write to you about access.