SCADA · Data Logger · O&M · CRM

From the RS485 bus to the service ticket.

EVVO Smart connects a solar plant end to end: a data logger on the inverter bus, a SCADA in the cloud, an O&M app in the field and a CRM at the service desk. Every kilowatt reports in, as often as every minute. Every fault ends as a closed ticket.

Book a live demo Explore the stack

Live on evvosmart.com: SCADA, O&M and CRM
Web dashboards and native Android apps
Any Modbus inverter, meter or weather station

Demo rooftop plant 1 MWp · Chennai

12:04 IST replay

AC power612.4 kW

Today2,604 kWh

Performance ratio82.6 %

Irradiance742 W/m²

actualforecast

INV-1 INV-2 INV-3 INV-4 last packet 2 s · MQTT · simulated

Speaks every language on the plant

Modbus RTU
Modbus TCP
RS485
Ethernet
4G LTE
MQTT
SD store-and-forward
OTA firmware
Power control
Open-Meteo forecasts
PR · CUF · specific yield
Deemed generation
Push alerts
REST API v1.1
Webhooks
e-Signature checklists
Eva fleet assistant
Native Android

Why EVVO Smart

One vendor, from the inverter bus to the service desk.

Most plants juggle three vendors' tools that never quite agree. EVVO Smart is designed, built and operated by one team, so the logger, the dashboard, the O&M app and the service desk all read one set of numbers.

Hardware and software from one team
The data logger, its firmware, the cloud services and the apps are all ours. When something needs changing, there is nobody to wait for.
Your data on your own servers
A cloud master with a live on-premises standby, read-only access for the O&M side, and HTTPS on every service.
Built for Indian C&I solar
Tariff slots, deemed generation, DG backup and grid outages are first-class features, not workarounds.

C&I rooftops · ground-mount · captive plants

The stack

Four products. One line of data.

Each product hands its data to the next, so the plant owner, the O&M engineer and the service desk all read the same numbers.

Hardwareon the plant

EVVO Data Logger

An industrial logger that speaks Modbus on one side and MQTT on the other, and keeps logging when the internet does not.

Any make, any bus. RS485 Modbus RTU and Modbus TCP for up to 32 inverters, meters and weather stations per logger.
Ethernet or 4G LTE. MQTT uplink over either link, and the logger also serves the bus as a Modbus TCP gateway.
Never loses a row. Every reading is written to the SD card first and uploaded when the link returns.
Power Control. Export limits and load following written straight to the inverters every second, with a safe fallback when an input goes stale.
Updates over the air. Bootloader-based firmware updates and a remote tunnel, so support rarely needs a site visit.
Commission from a browser. Add a device, map its registers and watch live values on the logger's own console.

Ask about the hardware

Open industrial electrical control panel with wiring and modules

192.168.8.61 · EVVO Data Logger · status

Running firmware	v2.4.1 · bootloader OK
Ethernet	DHCP · 192.168.8.61 · link 100M
LTE	registered · RSSI −67 dBm
SD card	3.2 GB used · store-and-forward on
Last upload	12:05:00 IST · MQTT · 4 devices

INV-1 · RTU id 1 INV-2 · RTU id 2 METER · TCP :502 WMS · RTU id 9

power controlexport limit active · INV-1…4 held at 62 % · 1 s loop · failsafe armed

WebAndroidiot.evvosmart.com

EVVO SCADA

The plant, live, in the browser and in your pocket.

Telemetry your way. Every inverter, meter and weather station logged at 1, 5 or 15 minutes, with full history and CSV export.
The plant as a diagram. Energy-flow and single-line-diagram views, plus KPI cards you configure per plant.
Reports that drill down. Daily, monthly and yearly generation, right down to each inverter's kWh.
Forecast against actual. Open-Meteo weather and your inverter ratings give an expected curve, so under-performance shows the same day.
Alerts that mean something. Fault registers decoded into names, not codes, and pushed to Android within seconds.
Open by design. A public REST API with account keys, webhooks and MQTT for your own integrations.

Open EVVO SCADA

EVVO SCADAOverviewDevicesAlertsReportsForecast

FaultINV-3 · Grid abnormal · 10:32 IST · 30 min→ EvvoCare ticket

Current power612.4 kW

Today1,912 kWh

This month34.6 MWh

Forecast now (96%)638 kW

INV-1204.1 kWonline
INV-2203.8 kWonline
INV-30.0 kWfault
INV-4204.5 kWonline

WebAndroidom.evvosmart.com

EvvoCare O&M

Operations and maintenance for solar fleets, with the SCADA numbers already inside.

Tickets, end to end. Customers raise, plant managers route, engineers close, and every step is timestamped.
Checklists with a signature. Weekly, monthly and quarterly schedules built from the plant's own assets, signed on screen.
Performance, priced. PR, CUF, specific yield and deemed generation, with lost units attributed to grid outages, inverter faults, curtailment or cleaning.
Everything about the site. Asset register with install and swap lineage, inventory, documents, attendance and team chat.
Eva, the fleet assistant. Answers in plain words from your real figures only. It never invents a number.
Roles that match the site. Admin, plant manager, engineer and customer each see exactly their own work.

Open EvvoCare

Inspector and foreman checking documentation beside solar panels

EvvoCare12:04

Tickets 3 open

InverterINV-3 grid abnormal, no auto-restartDemo rooftop · High · sent to EVVO CRM · CRM-2026-0412

CleaningModule cleaning, sheds B and CAssigned to engineer · due Friday

ChecklistWeekly inspection · 14 pointsSigned on screen · 09:12 IST

EvaToday's generation is 2,604 kWh by noon, tracking 96% of forecast. INV-3 was down 46 minutes on grid abnormal, about 150 kWh lost.

HomeSitesTicketsMenu

Webcrm.evvosmart.com

EVVO CRM

The service desk for EVVO inverters, fed straight from the field.

Cases arrive by themselves. Inverter complaints raised in EvvoCare become CRM cases with serial, model, commissioning date and photos attached.
Only what the desk can act on. Inverter categories cross over; cleaning, civil and cabling work stays inside O&M.
One timeline. From open to closed, with the CRM reference shared back to the site's ticket.
Records in one place. Customer, address, capacity, warranty and contact, kept with the installation.

Open EVVO CRM

Service engineer with a hard hat checking a solar panel string

CRM-2026-0412Engineer assigned

Grid abnormal, no auto-restart

Product: EVVO 250 kW · three-phase
Serial: EV250-2503-0087
Commissioned: 12 Mar 2025 · warranty active
Site: Demo rooftop, Chennai
Photos: Side sticker · installation × 3
Source: EvvoCare complaint #318

10:36Raised in EvvoCare by the plant manager
10:36Case created, reference sent back to the ticket
11:10Service engineer assigned
ThuSite visit scheduled

How it flows

Built as a pipeline, not a pile of apps.

Data moves in one direction, from the plant to the desk. Every hop is authenticated, and the O&M side can only read what the SCADA side writes.

Plant equipmentInverters, energy meters, weather stations

RS485 · Modbus TCP

EVVO Data LoggerLogs to SD, writes control registers

MQTT · Ethernet / LTE

EVVO SCADAPostgreSQL, forecasts, alerts, API

read-only views

EvvoCare O&MTickets, checklists, performance

inverter complaints

EVVO CRMService cases, warranty, engineers

Store-and-forward

The logger writes every reading to its SD card before it tries the network. A dropped LTE link or a cloud restart costs nothing; the rows arrive later with their original device timestamps.

Read-only by design

EvvoCare reads SCADA through database views on a read-only role with a statement timeout. It can show the plant's numbers, but it cannot change them or stall the live system.

Cloud master, local standby

The production database runs on a cloud server and streams every change to an on-premises standby. If the cloud goes away, the data does not.

Telemetry resolution: 1 · 5 · 15min
Power-control loop: 1s
Modbus devices: 32per logger
Native Android apps: 2Kotlin

Made for C&I solar in India

The details that decide a plant's month.

Tariff slots, deemed loss, grid outages and diesel backup are not edge cases on a commercial rooftop. They are the month, and the platform is built around them.

Forecast against actual, with irradiance

Open-Meteo weather and each inverter's rating produce an expected curve for the day. The dashboard draws it under the live power and beside the weather station's irradiance, so a cloud, a trip and a soiled string each look different.

Export limit, held every second

Set a grid export cap and the logger holds the inverters to it, second by second, straight on the Modbus bus. It keeps working with the cloud unreachable and falls back to a safe setting if a meter stops answering.

Grid export cap25 kW

62 %

INV-1 … INV-4 held at 62 %1 s loop

Deemed generation, attributed

Lost units are detected from SCADA voltages and alerts, then priced with the inverter's rating and the month's tariff.

Grid outage 118 kWh
Inverter fault 150 kWh
Curtailment 64 kWh
Cleaning due 40 kWh

Alerts that reach the phone

EVVO SCADA · nowINV-3 Grid abnormal, Demo rooftop. Active for 2 min.

Fault registers are decoded into names, not codes, and pushed to the Android app the moment they are stored. The 30-day history keeps severity, inverter and duration.

An API you can build on

GET /api/v1/plants/{mac}/daily
    ?from=2026-09-01&to=2026-09-08
X-API-Key: <account key>

{ "ok": true,
  "data": [ { "date": "2026-09-01",
              "kwh": 4812.6 }, … ],
  "meta": { "api_version": "1.1" } }

Account API keys, one response envelope, CSV on every series, OpenAPI docs with Swagger, and webhooks when something changes.

Reports the way the plant is billed

Generation reports. Daily, monthly and yearly, with a per-inverter breakdown.
Tariff slots. Import and export priced by time of day, so the meter reads in rupees as well as kWh.
Targets. PR, CUF and specific yield against a target yield you set per plant.
Statements. Customer statements and CSV export from EvvoCare.

On the record

Every asset on the plant, measured or inspected.

SCADA measures what is on the bus. EvvoCare derives the rest or records the weekly inspection, so a transformer's loading and a panel's condition sit beside the inverter's kilowatts.

InverterAC and DC power, phase V / A / Hz, fault registersSCADA
Energy meterImport, export, power factor, tariff slotsSCADA
Weather stationIrradiance, module and ambient temperature, windSCADA
TransformerLoading against rating, from the LV meterderived
HT panelWeekly inspection record with e-signatureinspection
LT panelBus voltage and load from the meter, inspection loginspection

Technician walking across a rooftop solar array

EVVO SCADA11:02

Demo rooftop · live 612.4 kW

1,912 kWh today3 / 4 online

PR82.6%

Specific yield1.91

Irradiance742

Grid export312 kW

FaultINV-3 Grid abnormal · 30 min

EvvoCare12:05

Weekly checklist 11 / 14

Inverter fans and filters clean
String fuses, no discoloration
Earthing continuity at LT panel
Module cleaning, shed B Not OK
WMS pyranometer glass clean
Transformer oil level

e-signature

In the field

Native Android, not a web page in a box.

Both apps are Kotlin and Jetpack Compose, talking to the same APIs as the web. Pull to refresh, edge to edge, light and dark, and your phone's own Material colour.

EVVO SCADA app

Overview with the same KPI cards the web admin configured
Reports that drill from year to month to day to inverter
Alerts, forecast and device detail screens
Push notifications for faults

EvvoCare app

Raise, route and close tickets with a full timeline
CRM case form with camera photos of the sticker and installation
Checklists signed on screen, run history kept
Fingerprint or face lock, stay signed in

Request the Android builds

Talk to us

See it running on your plant.

Tell us about the site and we will set up a demo with your own inverters, meters and tariff. A data logger on the bus is usually reporting within a day of commissioning.

Email: support@evvosolar.com
Company: Evolve Energy Group, India
Already a customer?: EVVO SCADA EvvoCare EVVO CRM