HelioScope Review: Features, Pricing & Pros vs Cons (2026)

TL;DR: HelioScope is a cloud-based commercial solar simulation platform built for C&I projects between 100 kW and 5 MW. At $159–$259/month plus a $2,000/year AutoCAD license for complete electrical work, the true cost runs $3,108–$5,108/year per user. Based on G2 reviews, users rate ease of use at 8.9/10 but financial analysis at just 5.2/10. For fast, bankable C&I simulation without engineering complexity, HelioScope delivers real value. For EPCs needing integrated electrical documentation and no project volume caps, SurgePV — the leading solar design software — covers the full workflow from design through permit-ready SLD in under an hour.

Author: Keyur Rakholiya Title: Contributing Writer, SurgePV | MD & CEO, Heaven Green Energy Limited Expertise: 1+ GW solar projects delivered, 20+ design software platforms tested, 10+ years EPC operations Published: 2026-03-08 Last Updated: 2026-03-08 Review Methodology: Official HelioScope documentation, G2 verified reviews, DNV GL and Sunstone Credit validation reports, competitive testing against SurgePV and PVsyst

Who This Review Is For

This HelioScope review helps:

• Commercial and industrial EPCs evaluating simulation tools for 100 kW to 15 MW projects
• Solar engineers comparing HelioScope vs PVsyst for bankable energy reports
• Teams researching Aurora Solar vs HelioScope before committing to a platform
• Solar designers weighing HelioScope alternatives for high-volume operations
• Finance teams assessing total cost of ownership including required third-party tools

Who should skip this review:

• Residential installers (HelioScope is not optimized for projects under 20 kW)
• Utility-scale developers above 15 MW (the hard cap rules it out)
• Teams requiring native battery/BESS modeling

What Is HelioScope?

HelioScope is a browser-based solar design and energy simulation platform purpose-built for commercial and industrial projects. It was created by Folsom Labs in San Francisco in 2011 and acquired by Aurora Solar in August 2021.

The name comes from “Helios” (Greek for sun) and “scope” (to examine or analyze) — a solar analysis tool in the most literal sense.

Company Background

What HelioScope Does

HelioScope handles three core workflows:

1. 3D design — browser-native drag-and-drop layout for rooftops, carports, and ground-mount systems
2. Energy simulation — module-level hourly production modeling (8760 hours/year) with P50/P90/P95/P99 outputs
3. Proposals — drag-and-drop proposal editor with custom branding (Pro/Enterprise only)

It does not handle electrical engineering natively. Wire sizing, conduit calculations, and complete SLD generation require AutoCAD export and manual work.

Core Value Proposition

HelioScope’s positioning: “PVsyst accuracy without PVsyst complexity.” DNV GL verified its energy estimates fall within 1% of PVsyst when assumptions align. The difference is that HelioScope runs in a browser, requires no installation, and produces results in 30–60 seconds vs hours of PVsyst configuration.

That claim holds for the 100 kW to 5 MW sweet spot. Above 5 MW, performance degrades. Above 15 MW, the platform hits a hard cap.

HelioScope Pricing & License Cost

HelioScope pricing is fully transparent with three published tiers. All plans are single-user licenses — team access requires multiple subscriptions.

HelioScope Pricing 2025

Annual billing saves 15% on Basic and Pro plans.

October 2023 changes: HelioScope increased Basic capacity from 500 kW to 1.25 MW and Pro to 5 MW, but enforced a 10-project monthly limit across both plans — a meaningful restriction for high-volume EPCs.

What’s Included by Plan

HelioScope Licensing Explained

HelioScope uses per-seat subscription licensing. There are no team bundles — each user pays separately. At Pro ($259/month), a 3-person team costs $777/month or $7,920/year before any additional tools.

Academic institutions and nonprofits can apply for free or discounted access by contacting [email protected].

Total Cost of Ownership

HelioScope’s basic and Pro plans lack complete electrical engineering. Teams handling commercial permit packages typically need AutoCAD for SLD customization and wire calculations.

For a 3-person engineering team, HelioScope Pro + AutoCAD runs roughly $13,920/year. SurgePV’s integrated stack — design, simulation, automated SLD, wire sizing, proposals — covers all three users for significantly less without requiring AutoCAD.

Is HelioScope Free? Free Trial Options

HelioScope is not free. There is no free tier for commercial users.

A free trial is available on request. The trial duration is not published — contact HelioScope directly to arrange access. If you are testing HelioScope, specifically ask about the trial length and what plan tier the trial represents (Basic or Pro features make a significant difference).

Academic and nonprofit users can request free or discounted access through [email protected]. This is one of HelioScope’s genuine advantages for educational programs and NGO solar projects.

HelioScope free alternatives: If budget is the constraint, OpenSolar offers a free tier for residential projects. For C&I simulation, there is no functionally comparable free tool — SAM (System Advisor Model) from NREL is free but research-oriented and lacks commercial workflow features.

HelioScope Solar Design Software Features

3D Design & Modeling

HelioScope’s design environment runs in the browser with no installation required. It supports:

• Rooftop, carport, and ground-mount systems
• Drag-and-drop module placement
• Auto-stringing and inverter configuration
• 40,000+ modules and 10,000+ inverters in the component database
• Custom PAN/OND file upload for unlisted equipment
• Single-axis trackers (Enterprise plan only)

The maximum recommended design size is 5 MW. Projects above 10,000 modules experience lag and may freeze. The hard cap is 15 MW.

Shading & Obstruction Analysis

HelioScope’s shading engine is NREL validated. Independent testing found accuracy within -7.0% to +4.3% of measured output — reported as ±7% accuracy range. The platform offers:

• Hourly shadow mapping per module (not per string or array)
• AI-based Similar Obstruction Detection (Pro plan — identifies matching obstructions automatically)
• Row-to-row shading, horizon files, and 3D obstruction modeling
• LIDAR integration (Pro/Enterprise, beta in select regions)

Module-level shading is a meaningful advantage over PVsyst’s array-level approach. It produces more accurate results for rooftops with multiple orientations or partial shading conditions.

Energy Simulation

The P90/P95/P99 outputs on Pro and Enterprise plans matter for project finance. Lenders typically require P90 estimates for debt underwriting. Basic plan users are limited to P50, which is fine for early-stage feasibility but not for financing.

Financial Modeling (Pro/Enterprise)

HelioScope includes a financial calculator on Pro and Enterprise plans:

• Utility rate inputs, NPV, IRR, payback period, LCOE
• Custom branding on financial reports
• One-click sharing

G2 users rate the financial analysis at 5.2/10 — the lowest score in the platform’s profile. Compared to PVsyst’s financial depth (8.9/10) or dedicated tools like Energy Toolbase, HelioScope’s financial module is adequate for rough estimates but not suitable for detailed investment-grade analysis.

Electrical Engineering Limitations

This is HelioScope’s most significant gap.

HelioScope exports DXF files for CAD software. The platform does not automate wire sizing or conduit calculations. For commercial permit packages, engineers typically spend 2–3 hours in AutoCAD after completing the HelioScope design.

Battery/Storage — Not Available

HelioScope has no native battery modeling. The official workaround is to export production data to Energy Toolbase or Homer Energy for storage analysis. This adds a separate subscription cost and workflow step.

For teams designing battery storage systems now, this is a firm limitation. HelioScope acknowledges it in their help documentation.

Integrations

User Reviews & Feedback

HelioScope carries a G2 overall score of 73/100 with a user satisfaction score of 92/100. G2 marks the platform as “Rising” in trend direction.

G2 Category Scores

Ease of use at 8.9/10 is the highest score in the simulation category — higher than PVsyst (7.1/10) and most design platforms. Topography analysis at 3.3/10 and financial modeling at 5.2/10 are genuine weaknesses, not edge cases.

Top Praised Features

Top Criticisms

Direct User Quotes

“HelioScope has cut design time several-fold and helps optimize designs.” — G2 Reviewer

“Run 4x as many iterations of layout in the same amount of time.” — G2 Reviewer

“If you deal with residential solar up to 15kW, there are better software options.” — G2 Reviewer

“For projects heavy on BESS, tools like PVsyst or Aurora might serve better.” — G2 Reviewer

Pros & Cons

Pros

1. DNV GL Validated Accuracy

DNV GL independently tested HelioScope in 2014 and confirmed energy estimates fall within 1% of PVsyst when project assumptions align. A 2018 case study by PsomasFMG found 0.26% variance between HelioScope predictions and measured output. Sunstone Credit recognized HelioScope as bankable in October 2025 — making it the first web-based solar design platform to receive that designation from a major solar lender.

2. Ease of Use Leader — 8.9/10

No other simulation tool scores higher on ease of use. PVsyst sits at 7.1/10. HelioScope’s 8.9 reflects a genuine design philosophy: the platform strips out complexity that doesn’t serve C&I commercial workflows. New users typically reach proficiency in 1–2 weeks vs 3–4 weeks for PVsyst.

3. Speed — 4x More Iterations Per Session

Users consistently report running four times more layout variations in the same time compared to CAD-based workflows. Simulation runs complete in 30–60 seconds. For early-stage feasibility on multiple site configurations, this speed advantage is real.

4. Web-Based — No Installation Required

HelioScope runs entirely in the browser. No local installation, no version management, no compatibility issues across team machines. Updates deploy automatically. This is a practical advantage for distributed teams and firms with IT restrictions on software installation.

5. Component Database Depth

40,000+ modules and 10,000+ inverters cover virtually every piece of equipment in the C&I market. Custom PAN/OND file upload handles unlisted components. This depth reduces the friction of specifying new products on each project.

Cons

1. Financial Analysis: 5.2/10 — Critical Weakness

G2 users rate financial modeling at 5.2/10. The platform includes NPV, IRR, payback, and LCOE calculations, but users report the analysis lacks the depth required for investment-grade reporting. Teams doing project finance typically need Energy Toolbase or a dedicated financial model alongside HelioScope — adding cost and workflow complexity.

2. No Native Battery Modeling

HelioScope has no BESS simulation capability. The documented workaround is exporting to Energy Toolbase or Homer Energy. With hybrid solar-plus-storage becoming the default for C&I projects in many markets, this is an increasingly significant gap. HelioScope’s own documentation acknowledges this limitation without a timeline for native support.

3. Electrical Engineering Requires AutoCAD

HelioScope generates a basic SLD and DXF export, but permit-ready electrical documentation requires AutoCAD or equivalent CAD software. That adds $2,000/year per seat and 2–3 hours per commercial project in manual drafting. At 50 projects/month, that’s 100–150 hours of engineering time HelioScope cannot recover.

4. 10 Projects/Month Cap

The Basic and Pro plans limit users to 10 projects per month. This is adequate for early-stage EPCs but becomes a hard constraint for firms running 15–30+ projects monthly. The only solution is Enterprise pricing, which requires a custom quote.

5. 15 MW Hard Cap + Performance Degradation

Projects above 5 MW experience performance issues — lag, slow rendering, and occasional freezes. The absolute maximum is 15 MW. For utility-scale developers, this eliminates HelioScope entirely. For C&I teams who occasionally take larger projects, it creates a ceiling.

6. No Tracker Support on Basic/Pro

Single-axis trackers are an Enterprise-only feature. For C&I ground-mount projects where trackers increase production 15–35%, this means paying for Enterprise or losing a meaningful design option.

HelioScope vs SurgePV

Both platforms target C&I commercial solar installers and EPCs. The core difference: HelioScope is a simulation engine, SurgePV is a complete project workflow platform.

Head-to-Head Feature Comparison

Workflow Time Comparison — 500 kW Commercial Project

At 50 projects/month, HelioScope’s workflow requires 175–225 engineering hours for electrical documentation that SurgePV handles automatically. At a $75/hour engineering rate, that gap represents $13,125–$16,875/month in recoverable labor cost.

Annual Cost Comparison

For a 3-person engineering team, SurgePV’s integrated stack costs roughly 68% less annually than HelioScope Pro plus AutoCAD — without the 10-project monthly cap.

Aurora Solar vs HelioScope

Aurora Solar acquired HelioScope in August 2021, so these products now share a parent company. They serve different buyer profiles.

HelioScope is the specialized C&I simulation tool. It is faster and easier than Aurora for commercial project layouts, better suited for bankable energy reports, and purpose-built for the 100 kW to 5 MW segment.

Aurora Solar is the all-in-one residential and small commercial platform. It includes CRM, homeowner-facing proposals, and a sales workflow that HelioScope lacks entirely. For residential installers, Aurora’s tools are more relevant.

For commercial EPCs choosing between the two: HelioScope’s simulation accuracy and speed give it the edge for C&I projects. Aurora is the better fit if you also need residential workflow tools in the same platform.

Neither product replaces the other — Aurora owns both and presumably positions them to serve different segments without direct conflict.

HelioScope Alternatives

SurgePV is the most direct alternative for C&I EPCs. It covers 3D design, energy simulation, automated SLD generation, wire sizing, conduit calculations, and proposals in a single workflow. No AutoCAD required. No project volume caps. Solar design software built specifically to handle commercial permit-ready documentation. The main tradeoff: SurgePV’s simulation validation is newer than HelioScope’s decade-long DNV GL track record.

PVsyst is the industry standard for utility-scale and investment-grade simulation. It has deeper financial modeling (8.9/10 vs HelioScope’s 5.2/10), offline capability, and no project size cap. The tradeoffs are a steeper learning curve (7.1/10 ease of use), desktop-only installation, and slower workflow. For C&I projects requiring maximum simulation credibility or utility-scale above 15 MW, PVsyst is the appropriate choice. See the PVsyst review for a full comparison.

Aurora Solar is the residential-first all-in-one platform from HelioScope’s parent company. It includes CRM, homeowner proposals, and a smoother sales flow. For EPCs balancing residential and small commercial work, Aurora offers a broader feature set. The Aurora Solar review covers this in detail.

RatedPower is purpose-built for large ground-mount and utility-scale projects. It handles projects that exceed HelioScope’s 15 MW cap and includes civil design and grid connection tools. For large-scale ground-mount developers, RatedPower is more appropriate than HelioScope.

OpenSolar is the free option. It covers residential and small commercial design with proposals and basic shading analysis. It lacks HelioScope’s simulation depth and bankability credentials, but for small installers not working on C&I projects, the free tier is functional.

Who Should Use HelioScope?

Best Fit for HelioScope

C&I EPCs working 100 kW to 5 MW projects. HelioScope is built for this segment. The design tools, simulation engine, and bankability credentials (DNV GL validation, Sunstone Credit recognition) are optimized for commercial rooftop and carport projects in this size range.

Teams that already use AutoCAD. If your engineering team already has AutoCAD licenses and trained drafters, HelioScope’s DXF export workflow fits naturally. The gap in electrical automation is less painful when you have a dedicated CAD team.

Organizations prioritizing long-standing simulation credibility. HelioScope has 15 years of track record, DNV GL validation since 2014, and Sunstone Credit bankability recognition. For teams whose lenders and investors specifically recognize HelioScope reports, switching platforms introduces unnecessary validation risk.

Academic programs and nonprofits. Free and discounted access makes HelioScope a logical choice for educational use. The ease-of-use score (8.9/10) also makes it a practical teaching tool.

Who Should Look Elsewhere

High-volume EPCs above 10 projects/month. The monthly project cap on Basic and Pro is a hard wall. Enterprise pricing solves it but requires a custom contract negotiation.

Teams designing battery storage systems. No native BESS modeling means a second tool subscription and an additional workflow step on every project with storage.

Primarily residential installers. HelioScope users are direct about this: the platform is not well suited to residential projects under 20–50 kW. Panel placement for small residential systems is awkward, and the pricing is not competitive with residential-focused tools.

Utility-scale developers. The 15 MW hard cap and performance degradation above 5 MW make HelioScope inappropriate for large-scale ground-mount projects.

Frequently Asked Questions

How much does HelioScope cost?

HelioScope Basic costs $159/month ($1,620/year with annual billing). Pro costs $259/month ($2,640/year). Enterprise pricing is custom. All plans are single-user. A 3-person team on Pro pays $7,920/year before adding AutoCAD. Academic and nonprofit users can request free access by contacting [email protected].

What is HelioScope pricing 2025?

HelioScope pricing has been stable since October 2023, when the platform raised capacity limits and introduced the 10-project monthly cap. Basic is $159/month, Pro is $259/month, Enterprise is custom. Annual billing on Basic and Pro applies a 15% discount. These prices carry forward through 2025 with no announced changes.

Is HelioScope free?

No. HelioScope has no free commercial tier. A trial is available on request — contact HelioScope to arrange access. Academic institutions and nonprofits qualify for free or discounted plans through [email protected].

Does HelioScope offer a free trial?

Yes. The trial duration is not publicly specified. Request trial access directly from HelioScope. If you are evaluating between Basic and Pro features, confirm which plan tier your trial reflects before making a purchasing decision.

Aurora Solar vs HelioScope — which is better?

Aurora Solar acquired HelioScope in 2021. They now serve different markets: HelioScope for C&I simulation (100 kW to 15 MW), Aurora Solar for residential and small commercial with CRM and sales tools. For pure C&I simulation accuracy and speed, HelioScope is stronger. For residential installers needing an all-in-one platform, Aurora is more appropriate. Neither is the right answer for EPCs needing integrated electrical engineering — that gap applies to both.

HelioScope vs PVsyst — which should I use?

Use HelioScope when speed, ease of use, and web-based access matter more than simulation depth. Use PVsyst when you need investment-grade financial modeling, utility-scale project support, offline access, or deep customization. DNV GL confirmed HelioScope accuracy falls within 1% of PVsyst for typical C&I projects. The practical difference for most 100 kW to 5 MW commercial designs is negligible — the workflow difference is significant.

What are the best HelioScope alternatives?

The strongest HelioScope alternatives are:

• SurgePV — best for C&I EPCs needing integrated electrical engineering and no volume caps
• PVsyst — best for utility-scale and investment-grade financial modeling
• Aurora Solar — best for residential plus small commercial with CRM
• RatedPower — best for large ground-mount projects above 15 MW
• OpenSolar — best free option for residential teams

Does HelioScope support battery storage?

No. HelioScope has no native BESS modeling. The platform integrates with Energy Toolbase and Homer Energy for storage analysis, but this requires a separate subscription and an additional workflow step. There is no announced timeline for native storage support.

Final Verdict

Executive Summary

HelioScope strengths:

• DNV GL validated simulation — within 1% of PVsyst accuracy
• Ease of use: 8.9/10 (highest in the simulation category)
• Sunstone Credit bankability recognition (October 2025)
• 4x faster design iterations vs CAD-based workflows
• 40,000+ modules, 10,000+ inverters — deep component coverage
• Web-based, no installation, 1,200 GW track record

HelioScope limitations:

• Financial analysis: 5.2/10 — inadequate for investment-grade reporting
• No native battery/BESS modeling
• Electrical engineering requires AutoCAD ($2,000/year extra, 2–3 hours per project)
• 10 projects/month cap on Basic and Pro — hard ceiling for volume EPCs
• 15 MW hard cap — no utility-scale support
• Topography analysis: 3.3/10
• Single-user licensing only (no team plans below Enterprise)

Decision Framework

Choose HelioScope when:

• Your projects are in the 100 kW to 5 MW C&I range consistently
• You already have AutoCAD licenses and trained electrical drafters
• Your lenders or investors specifically recognize HelioScope bankability reports
• You are an academic program or nonprofit qualifying for free access
• Speed of simulation and ease of use are your top priorities

Choose SurgePV when:

• You need permit-ready electrical documentation without AutoCAD
• Your team handles more than 10 projects/month on Basic or Pro
• You design projects with single-axis trackers or East-West racking
• You want a single platform from layout through proposal, no tool-switching
• Integrated wire sizing and conduit calculations matter for your workflow

Choose PVsyst when:

• Projects exceed 15 MW or require utility-scale modeling
• Investment-grade financial analysis is required
• Offline access is a requirement
• Your lenders specifically require PVsyst reports

Value Summary

HelioScope is the right simulation tool for C&I teams that value validated accuracy, fast iterations, and web-based access — and who have either a dedicated CAD team or are not yet doing complete permit packages in-house. The 8.9/10 ease of use score is not marketing copy; it reflects a deliberate design decision to make commercial solar simulation accessible without a steep learning curve.

The limitations are real. Financial modeling at 5.2/10 means you need a separate tool for investment-grade reports. No BESS modeling means hybrid projects require another subscription. The 10-project cap means growth eventually forces an Enterprise conversation.

For EPCs who have outgrown HelioScope’s electrical limitations — or who want to eliminate AutoCAD from the workflow entirely — solar software that handles design through permit-ready documentation in a single platform is worth evaluating. SurgePV’s generation and financial tool covers the financial modeling gap directly.

Take the Next Step

• Book a demo — See SurgePV’s automated SLD and wire sizing with your project types
• Compare pricing — Side-by-side cost breakdown vs HelioScope + AutoCAD
• Shadow analysis tool — See how SurgePV’s shading accuracy compares
• Solar proposals — Proposal generation built into the same workflow

Related Resources

Platform Comparisons:

• PVsyst Review — Detailed PVsyst analysis and HelioScope comparison
• Aurora Solar Review — Aurora Solar features, pricing, and comparison
• Arka360 Review — India-focused all-in-one platform review

Feature Deep Dives:

• Solar Design Software — Complete design capabilities overview
• Shadow Analysis Software — Shading tools comparison
• Generation & Financial Tool — Financial modeling for C&I projects
• Solar Proposals — Proposal generation guide

This HelioScope review was written by Keyur Rakholiya, Contributing Writer at SurgePV and MD & CEO of Heaven Green Energy Limited, with 1+ GW of solar project experience and hands-on testing of 20+ design software platforms. All HelioScope information is sourced from official HelioScope documentation (helioscope.aurorasolar.com), DNV GL validation reports, Sunstone Credit bankability press releases, and verified G2 user reviews. We maintain editorial independence and disclose our company affiliation transparently.

Review published: 2026-03-08 | Next review: June 2026