SolThingsPV string health monitoring

SOLTHINGS / PV MONITORING & MAINTENANCE

See every string.
Maintain with evidence.

Go from a plant overview to individual current, voltage and power readings. Find anomalies, review what happened and connect routine inspections with fault handling.

Local data collectionBrowser accessChinese & English UI
See inverter health at a glance

01 / UNDERSTAND YOUR SITE

The whole plant. Every string.

Start with the plant overview, then switch to cards or topology to inspect the inverters and strings that need attention.

The overview, topology, device cards and string details show demo project data. The overview screenshot shows the Chinese interface. The fault list is an actual software screenshot in the selected language. Click any screenshot to enlarge; displayed values are not performance guarantees.

02 / FROM MEASUREMENTS TO INSIGHT

Find anomalies. Understand the evidence.

Detect electrical anomalies using current, voltage and comparisons within a group. Keep the evidence behind each result and show why a check is waiting when data is insufficient.

8checks

Real-time string checks

Enable the checks you need and set thresholds and anomaly/recovery confirmation times. Policies support plant, array and inverter levels.

Explore detection policies
FaultWarningInsufficient data
01

Zero current

Identify strings with no current output when a generation reference is available.

Zero current illustration Other strings are generating current while PV3 has zero output. I Illustration PV1 PV2 PV3 PV4 0 A
Group referenceNo output
02

Low current

Find strings whose current is substantially below the reference within their group.

Low current illustration PV3 still produces current, substantially below other strings in its group. I Illustration PV1 PV2 PV3 PV4
Group referenceLow current
03

Voltage out of range

Check whether voltage is outside the configured range during valid generation.

Voltage range illustration The green band is the configured voltage range; red readings are above or below it. V Illustration PV1PV6
Allowed rangeOut of range
04

Reverse current

Identify valid negative current readings using the configured threshold.

Reverse current illustration Normal current flows right from the string; the red arrow flows left and is marked negative. I Illustration + I − I
Forward flowReverse flow
05

Current imbalance

Identify significant current differences between comparable strings.

Current imbalance illustration Comparable string currents differ; amber bars highlight the larger differences. I Illustration PV1 PV2 PV3 PV4
Peer stringsImbalance
06

Within-group voltage deviation

Compare voltage deviation among valid inputs in the same group.

Group voltage deviation illustration Most voltages stay near the group reference; the amber PV3 reading is lower. V Illustration PV1PV2PV3PV4
Group referenceDeviation
07

Low power within group

Compare string power when current and voltage measurements are synchronized.

Low group power illustration PV3 has substantially less power than the other strings in the comparison group. P Illustration PV1 PV2 PV3 PV4
Group powerLow power
08

Asymmetry after learning

After learning completes, identify strings that differ from their normal behavior.

Learned asymmetry illustration The dashed line shows a normal reference and the solid line shows current behavior. The amber area calls for further review. Status Illustration Time →
ReferenceObserved

03 / OPERATING ANALYSIS

Put every reading in context.

MPPT deviation, environmental inputs and string grouping give power readings a reference and comparisons a meaningful basis.

01 / MPPT DEVIATION

Actual vs. expected. Channel by channel.

Actual vs. expected powerMPPT 1Illustration10 kW8 kWExpectedActualBelow expectedIllustration · Not measured data

View actual power, expected power and deviation for each MPPT channel. Configure it using module specifications and site wiring, then verify the environmental inputs.

  • Connect PV inputs to their actual MPPT channels in a graphical map
  • View channel voltage, current, actual power and expected power
  • Show the reason when valid inputs are missing

Expected power is an estimate. Deviation is for observation and does not directly create faults or warnings.

Explore MPPT deviation

02 / ENVIRONMENTAL INPUTS

Bring weather and site measurements into analysis.

Environmental inputs flow into analysisWeatherModel dataSensorsSite dataORIrradiance · Temperature · WindValue + quality + timeAnalysis inputsChoose one source; no automatic fallback

Choose either online weather or on-site measurements. Map horizontal or plane-of-array irradiance, ambient and module temperatures, and other site measurements, with input unit conversion.

  • Preview normalized values, input status and sampling times
  • Provide context for learning assistance and irradiance–power daily diagnostics
  • Retain the reason for invalid sensor inputs without switching to online weather automatically

Online weather is model-based. Check the source, quality and time before use. Follow displayed reasons when diagnostics are unavailable.

Configure environmental inputs

03 / STRING GROUPING

Compare strings under similar conditions.

Compare strings within the same orientation groupOne inverterEast-facingWest-facingPV1PV2PV3Compare within groupPV4PV5PV6Compare within groupSimilar conditions → meaningful comparisonsGroups are separate from MPPT channels

Create comparison groups by orientation, tilt, module configuration or shading. Graphical drag-and-drop, multi-selection and custom group names reflect real site differences in each comparison.

  • Set plant and array templates, then inherit or override at device level
  • Compare strings within each inverter independently
  • Review learning progress and status messages after changing groups

Configure comparison groups and MPPT channels separately. Ungrouped does not mean paused; use Ignore string to pause a string's detection.

Explore string comparison groups

04 / SUPPORT EVERYDAY OPERATIONS

Review, report and hand over.

Turn operating data, environmental information and inspection records into practical evidence for daily work.

HISTORY & REPORTS

Review trends. Export daily and weekly reports.

History and report export illustration Two historical trends lead to daily and weekly reports with CSV and PDF export. Illustration Historical trends PV1 PV2 08:0012:0016:00 Reports Daily Weekly CSV PDF

Query historical trends by device, measurement and time. Daily and weekly reports show observation coverage, connectivity and anomaly statistics, with CSV and PDF export.

Measurement history must be enabled in advance. Missing periods are not filled automatically.Explore history and reports

EDGEWEB

Check your site from another screen

EdgeWeb browser access illustration The desktop software running EdgeWeb is accessible to tablet and phone browsers over the site network. Illustration Site network Desktop · EdgeWeb DesktopTablet browserPhone browser

View devices, PV monitoring, history and fault records in a computer, tablet or phone browser, subject to configured access permissions.

Enable EdgeWeb, keep the desktop software running and ensure network connectivity.Explore browser access

05 / USE CASES

Built for the site. Useful every day.

For teams with access to inverter operating data who need local string monitoring and anomaly follow-up.

01 / DISTRIBUTED PV

Commercial rooftops
and routine inspections

Commercial rooftop inspection illustration Two PV rooftops are organized by area; an amber panel and magnifier highlight an area for priority inspection. Illustration Roof ARoof B Area checks Review first

Organize inverters across rooftops into arrays, monitor string health centrally and prioritize inputs with recurring low current or persistent imbalance.

  • Organize arrays by roof or area
  • Group strings by orientation and module conditions
  • Use trends to plan on-site checks
02 / UTILITY-SCALE PV

Monitor multiple arrays
and track anomalies

Multiple-array anomaly location illustration Drill down from the plant to arrays A, B and C, highlight the affected input in array B and locate PV03. Illustration Plant Array A Array B Array C ! Array B · PV03

Locate an affected area in the plant topology, then drill down to inverters and strings. Use fault filters and handling records to follow issues over time.

  • Explore plant, array and device levels
  • Filter faults by area and device
  • Support routine handovers with reports
03 / COMMISSIONING & DELIVERY

Connect devices
and verify operation

Device commissioning and handover illustration Connect the device, verify measurements and operating data, then save the monitoring project and configuration for handover. Illustration A · V ConnectVerifyDeliver Save monitoring project

Import a matching manufacturer template and check communications, data and status mapping. Validate policies under actual generating conditions and hand over a reusable monitoring project.

  • Check protocol versions and measurement units
  • Observe sampling and data validity
  • Save the project and operating configuration

06 / GETTING STARTED

Start with your first inverter.

Open the complete user manual
  1. 01

    Connect devices

    Device connection illustration An inverter connects to a monitoring project, where its model and current and voltage measurements are checked. Illustration V / A InverterProject

    Create a project and communication channel, select a manufacturer/model template and check current, voltage, status and sampling.

  2. 02

    Organize arrays

    Array and comparison-group illustration Organize devices into arrays A and B, then group comparable inputs. Illustration Project AB Group comparable inputs

    Arrange inverters by site area, verify string counts and set comparison groups for comparable inputs.

  3. 03

    Configure policies

    Detection policy illustration Three sliders represent the detection threshold, anomaly confirmation and recovery confirmation settings. Illustration Threshold Confirm Recovery Detection policy

    Set checks, thresholds, confirmation times and status mapping. Connect environmental data where needed.

  4. 04

    Keep monitoring

    Ongoing monitoring illustration Review monitoring trends and states continuously, save history and review operating reports. Illustration Monitor History Reports

    Enable the history you need, save the project and review live status, fault records and operating reports.

INVERTERS

Leading manufacturers. Hundreds of models.
Choose a template. Simplify setup.

Select a manufacturer and model to load its measurement configuration, reducing manual entry. The library includes residential, commercial and utility-scale models.

8brands

Equipment manufacturers

487models

Individual model templates

HUAWEI

Huawei

187 templates
Huawei SUN2000 M1 series inverter product image
Pictured: SUN2000 M1 series
  • SUN2000-100KTL-M1
  • SUN2000-215KTL-H0
  • SUN2000-10KTL-M1
View all 187 models

GROWATT

Growatt

31 templates
Growatt MAX 50–80KTL3 LV series inverter product image
Pictured: MAX 50–80KTL3 LV series
  • MAX 80KTL3 LV
  • MID 25KTL3-X
  • MIN 6000TL-X
View all 31 models

SOLIS

Solis

19 templates
Solis-1P(4–5)K-4G series inverter product image
Pictured: Solis-1P(4–5)K-4G series
  • Solis-1P5K-4G
  • Solis-1P10K-4G
  • SOLIS-60K-US-F
View all 19 models

SOFAR

SOFAR

7 templates
SOFAR HYD 5–20KTL-3PH series inverter product image
Pictured: HYD 5–20KTL-3PH series
  • HYD 20KTL-3PH
  • HYD 10KTL-3PH
  • HYD 5KTL-3PH
View all 7 models

CHINT POWER

CHINT Power

7 templates
CHINT Power CPS 50/60kW series inverter product image
Pictured: CPS 50/60kW series
  • CPS SCA60KTL-DO/US-480
  • CPS SCA50KTL-DO/US-480
  • SCA36kW-480
View all 7 models

SMA SOLAR

SMA

5 templates
SMA Sunny Tripower 15000TL / 17000TL inverter product image
Pictured: Sunny Tripower 15000TL / 17000TL
  • Sunny Tripower 17000TL-10
  • Sunny Tripower 15000TL-10
  • Sunny Tripower 8000TL-10

Read through Sunny WebBox

View all 5 models

This is the current template library and includes some discontinued models. Available measurements and string monitoring depend on the model, protocol and firmware. MPPT or inverter totals cannot represent individual string data.

Find your inverter model Browse all 487 model templates

    PURCHASE

    Choose your device scale.
    Use the software permanently.

    Personal Free, Commercial and Ground Station plans. Software use is perpetual. Technical support is optional, and an expired support term does not end your software license.

    Perpetual useLicensed by device scaleOptional technical support

    Scroll horizontally to compare all plans.

    License scope and pricing · Chinese yuan (CNY)
    Plan and scope Personal FreePersonal learning and small projects CommercialCommercial rooftops and distributed PV Ground StationLarge ground-mounted and multi-array sites
    License-only pricePaid technical support excluded¥0Free to use¥3,999One-time payment¥6,999One-time payment
    Device limitUp to 5Up to 100Total across all arraysUnlimitedSuited to projects with over 100 devices
    Arrays1UnlimitedUnlimited
    PV stringsUnlimitedUnlimitedUnlimited
    Software termPerpetualPerpetualPerpetual
    ActivationNo certificate requiredMachine-bound certificateMachine-bound certificate
    Self-service resourcesUser manualUser manualUser manual
    Annual technical supportOptional, purchased separately—¥2,000 / year¥3,000 / year
    Lifetime technical supportOptional, one-time purchase—¥20,000¥30,000

    TECHNICAL SUPPORT OPTIONS

    Deploy independently,
    or choose ongoing support.

    The license-only option suits self-managed deployment using the manual. Commercial and Ground Station customers can add annual or lifetime technical support for remote installation and configuration guidance, device integration advice and troubleshooting.

    Annual support covers the purchased service term. Lifetime support needs no annual renewal. Confirm the detailed scope when purchasing.

    Limits count primary devices, not PV strings. Unlimited refers to the license allowance; practical capacity depends on your host, communications and site conditions.

    Discuss licensing and support

    BEFORE YOU START

    Frequently asked questions

    Key points about device selection, deployment and scope of use.

    What site data do I need?

    String monitoring requires valid current and voltage data for distinguishable inputs, plus device communication status. Each check has its own data, synchronization and reference requirements. MPPT or whole-inverter DC totals cannot reconstruct individual strings.

    Can I use it without internet access?

    Local device communication, monitoring and recording work without internet access. Online weather needs a connection; connected on-site environmental measurements are an alternative. EdgeWeb uses your configured site network and requires the software to keep running.

    What does Personal Free include?

    Personal Free needs no certificate and can be used permanently with up to 5 devices, one array and unlimited strings. Commercial allows up to 100 devices; Ground Station has no device limit. Both paid editions allow unlimited arrays and strings. Paid perpetual licenses are machine-bound: provide the machine code under Help → License Management and import the certificate. No online renewal is required. Compare license scope, pricing and technical support.

    Can it diagnose module defects or replace field testing?

    The software provides anomaly indicators and records from operating data. Confirm causes using wiring checks, shading conditions, equipment documentation and field inspection. MPPT expected power is an estimate. The software does not replace I–V scanning, professional testing or certification.

    Why does it show readings but still wait for data or learning?

    Visible readings do not mean every check has sufficient inputs. Check sampling times, communication status, comparison groups and valid references. Learning-based checks must wait until the page shows learning is complete. String details and operating diagnostics show specific reasons.

    TURN SITE DATA INTO MAINTENANCE EVIDENCE

    Get started with SolThings.

    Review the connection options, then prepare your project around the equipment models, communication conditions and monitoring scope on site.

    Read the user manual

    For 64-bit Windows. See the user manual for installation and device connection steps.

    Software and deployment support

    Device connection · Project setup · Licensing · User guidance

    mthings986@163.com
    WeChat:mthings999

    On narrow screens, scroll horizontally to inspect the screenshot. Press Esc or Close to return.