Solar control & monitoring · since 2015

Use more solar. Protect your DG. Watch your plant live.

Zero-export and DG-sync controllers, 4G monitoring devices, LoRa wireless links, smart meters and sensors for solar plants across India. Tell us about your site and get a clear quotation.

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Prefer to talk? +91 88515 67744Mon–Sat, 10:00 AM – 7:00 PM

Solar control and monitoring devices from Indolfin New Energy
Zero export & DG syncControl runs on the device at site
Live on the Solar Portal4G SIM included with 4G devices
  • In the solar business since 2015
  • Registered company, GSTIN 07AAFCI7527J1ZA
  • Based in Delhi, dispatch by courier across India
  • Direct support on phone, WhatsApp and email
  • Clear quotation with GST before you pay

Products

Everything a solar plant needs to be controlled and watched

Controllers, monitoring devices, wireless links, meters and sensors. Pick a category to see the products.

All products

Zero Export & DG-Sync Controllers

Stop solar export to the grid and protect your diesel generator, while you use the most solar your load allows.

9 products

Solar Monitoring Devices

4G and Wi-Fi devices that send your plant data to the Solar Portal: live power, daily energy, meter readings and alerts.

6 products

LoRa Wireless Range

Long-range radio nodes and gateways that connect inverters, meters and sensors without long RS485 cables.

6 products

Smart Energy Meters

Meters for zero export, DG sync and load monitoring. Wired RS485 or wireless radio versions.

4 products

Weather & Plant Sensors

Irradiation, module temperature, ambient temperature and wind sensors to measure true plant performance.

4 products

Protection & Relays

Reverse power protection, remote relay switching and circuit breakers for a safe solar setup.

3 products

Accessories & Spares

4G routers, power supplies, USB-RS485 converters and communication cables to complete your setup.

4 products

See the full range

Every product on one page, with search and category filters.

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Featured

Featured products

A good place to start. Every product has a Get a Quote and an Order on WhatsApp button.

See all products

Solutions

What problem do you want to solve?

Start from the problem at your site. Each solution explains how it works and which products you need.

All solutions

DG–Solar Synchronisation

Run solar together with your diesel generator, safely. Protect the DG from reverse power and save diesel.

Remote Plant Monitoring

See live power, daily energy, meter readings and alerts for every plant, on your phone or computer.

How it works

From your inverter to your phone in four steps

One small device at the plant reads your equipment, and on controller models also runs the control. You see everything on the Solar Portal.

  1. Step 1

    Your solar plant

    Inverters, energy meters, DG meter and sensors at your site.

  2. Step 2

    Indolfin device

    Reads your inverters and meters and, on controller models, runs zero-export or DG-sync control right at the plant.

  3. Step 3

    4G or Wi-Fi link

    Data is sent over the included 4G SIM, or your site Wi-Fi, to the Solar Portal.

  4. Step 4

    Solar Portal

    Live power, daily and total energy, meter readings and alerts, on your phone or laptop.

See remote monitoring Solar Portal Login

Already a customer? Log in to watch your plant.

Videos

See the products in action

Short videos on zero export, DG sync and remote monitoring, in Hindi and English.

All videos

How to order

Simple steps from enquiry to a working plant

No prices on the website: the right kit depends on your inverters, meter and DG. Tell us about your site and we send a clear quotation with GST.

Full ordering guide

  1. Step 1: Choose your products

    Browse our range, or simply tell us what you need: zero export, DG sync, monitoring or wireless links.

  2. Step 2: Share your site details

    Inverter make, model and kW, DG size, meter details and mobile network coverage. Photos help a lot.

  3. Step 3: Send an enquiry

    Use the enquiry form, WhatsApp, a phone call or email. We reply during working hours.

  4. Step 4: Get a quotation with GST

    You get one clear quotation with products, GST, courier charges and any yearly SIM and portal charges.

  5. Step 5: Confirm and pay

    Send a purchase order and make the payment as per the quotation terms.

  6. Step 6: Dispatch across India

    We pack and dispatch by courier to your site or office, and share the dispatch details.

  7. Step 7: Setup help and portal login

    Our team helps your electrician remotely. Once data is coming in, you get your Solar Portal login.

Why Indolfin

Made for Indian solar plants, by a team that supports you directly

In the solar business since

2015

INDOLFIN NEW ENERGY PVT LTD, Delhi – 110094, India.

  • Control and monitoring together

    Zero export, DG sync and plant monitoring from one team. The devices work together and all data goes to one Solar Portal.

  • We check your site first

    Send your inverter, meter and DG details. We confirm what will work before you order, so there are no surprises at site.

  • 4G SIM included

    Our 4G products come with a data SIM, so they work even where the site has no Wi-Fi or LAN.

  • Control runs on the device

    Zero-export and DG-sync control runs at site, on the device itself. It keeps working even if the internet goes down.

  • Remote setup help

    Your electrician installs, and our team guides on phone and WhatsApp. Many settings are checked and changed remotely.

  • Dispatch across India

    Clear quotation with GST, then dispatch by courier to your site or office, anywhere in India.

Questions

Common questions, answered simply

Compatibility, ordering, SIM and portal access, installation and support.

All questions & answers
Will your controllers work with my inverters?

Our controllers work with inverters that accept power control over RS485 Modbus RTU. Many inverters used in commercial plants do, but the control command is different for each make.

Send us the inverter make, model and kW before you order. We will confirm what works, and set up the controller for your inverters.

How do I order and pay?

Send an enquiry by the website form, WhatsApp, phone or email. We send a quotation with GST. You confirm with a purchase order and pay as per the quotation. Then we dispatch by courier and help with setup remotely.

See How to order for the full steps.

Why are prices not shown on the website?

The right product depends on your site: inverters, meters, DG, distances and internet coverage. We prefer to suggest the right setup and give you one clear quotation with GST, so you know exactly what you pay.

Do you deliver across India?

Yes. We dispatch by courier to any location in India. Courier charges and the expected delivery time are shared with your quotation.

What is zero export, and does my site need it?

Zero export means your solar plant does not send power to the grid. The controller reads the grid meter and limits inverter output in real time, so solar only covers your own load. A small import margin is kept as a cushion, so a sudden load drop causes at most a short, small export.

You need it if your connection does not allow export, or if exported units are not paid. See Zero export.

What does a DG-sync controller do?

When your diesel generator (DG) runs, a DG-sync controller limits solar so the DG always keeps a safe minimum load. This stops reverse power into the DG and lets solar save diesel. When the grid returns, solar goes back to full output. See DG-solar sync.

Get a quote

Tell us about your solar plant

Share your plant size, inverter make and what you need: zero export, DG sync or monitoring. We suggest the right kit and send a quotation with GST.

Get a Quote WhatsApp +91 88515 67744