Changelog

What's new in HelioTest — features, improvements, and fixes.

Report title selector in export dialog with four options: Performance Test Report, Capacity Test Report, Production Test Report, ASTM E2848 - Test Report
PV system name shown in PDF report header and cover page when the site has more than one PV system

Bifacial column in PDF report now shows "Excluded*" instead of "Yes*" for bifacial modules tested as monofacial

Custom company logo upload in Organization Settings, displayed on PDF report header
Free-text remarks field on test runs, editable from the export dialog and rendered in PDF reports
Export report dialog with logo preview and remarks editor before PDF/data download
"Bifacial (treated as Mono)" panel type option for systems with bifacial modules but no rear-side irradiance sensors, with explanatory footnote in PDF report
enable measured data from multiple data sources (e.g. weather from AlsoEnergy via CSV + Inverter data from SolarEdge via API)
Allow missing data points in pre-filtered data (e.g. missing inverter power during night-time)
PVsyst ↔ HelioTest azimuth inline converter in array configuration form

PVsyst v8.x.x output file format parsing
Keep test run status unchanged on name changes or changes to the PDF report remarks

Sandbox feature: "Try Sandbox" button on public site provisions an isolated demo environment with cloned data, no sign-up required

Moved monitoring API connection from site level to PV system level, allowing different PV systems to use different API connections

Public launch of the platform under the HelioTest brand
Privacy policy page
Security hardening against common web attack vectors (path traversal, header injection, enumeration)

SolarEdge API integration — automatically fetch monitoring data directly from SolarEdge for use in test runs
AlsoEnergy API integration — automatically fetch monitoring data directly from AlsoEnergy
Multiple measured data files — upload and combine more than one measured data CSV/Excel file per test run
Test run duplication — clone an existing test run to quickly reuse its configuration
5-minute and 15-minute timestep support — measured data at sub-hourly resolution is now accepted
Collapsible grouping of inverter-level clipping rows in the filter table
Improved PDF test report with a dedicated result summary page
Site editing directly from the Dashboard

Organization management — create organizations, invite team members, and switch between workspaces
Team member invitations with role-based access control (owner, admin, member, viewer)
Email address verification on account registration
My Account page for managing user profile
Support for multiple PVsyst date formats in uploaded modeled data files
Improved UTC and naive timestamp handling in measured data parser
Site coordinate inputs (latitude and longitude)
Beta version notification banner

PDF report generation for test results
CSV export of filtered and unfiltered test result data
Full results package download (CSV + PDF in one archive)
Blog with technical articles on PV performance testing
Separate public marketing website with landing page, pricing, and about pages
"Book a Demo" scheduling via Calendly integration
In-app documentation tooltips for all test configuration fields
Reporting condition configuration: choose GHI or POA irradiance source, optional wind speed, PV array STC rating in watts
BOM (back-of-module) or air temperature support in test result calculations
System-level and inverter-level clipping analysis

PVsyst file validation with descriptive error messages on invalid or malformed files
Measured data upload error messages and per-file validation warnings

Initial working platform
Site management — create and organize solar sites
PV system management per site with archive toggle
Test run creation with detailed configuration: inverters, arrays, irradiance sensors, and sensor-to-array mapping
Upload of PVsyst modeled data files (.CSV)
Upload of measured in-field data files (CSV/Excel)
Time series charts for modeled and measured data
Performance test execution based on the ASTM E2848 standard
Test result visualization with summary statistics, filter tables, and regression coefficients
Data and export tab on test results
User authentication: registration, login, JWT-based sessions