Open source, MIT licensed

Know exactly what your roof made today

Helio is a free dashboard for rooftop solar. It reads your inverter's own counter, so the number you see is the number on the meter.

Try the demoSet up yours
Made today
13.8kWh
Generating
3.76kW
Worth today
₹104
 , your timeDrag the sun

Demo roof, 5.4 kW, at ₹7.5 a unit. Your copy shows your own inverter.

  • Open source
    MIT licensed. Every line is on GitHub.
  • No database
    Nothing about your roof is stored.
  • No tracking
    No analytics, no ads, no third parties.
  • Login stays private
    Your ShineMonitor password never reaches a browser.

One screen. The number you came for.

Most solar apps bury today's units under menus and ads. Helio opens on them, on any phone.

The Helio dashboard: today's units, live power, the day's power curve and history
The demo roof at 1:10 pm. Try it yourself

Everything it tracks comes from your own inverter

  • Exact units for today

    Read from the inverter's own energy counter, the same figure ShineMonitor reports. Not estimated from a graph.

  • Live power

    What the roof makes right now, in kilowatts and as a share of your system, with a clear Generating or Idle status.

  • Any past day

    Units, value, peak power and when it hit, producing hours and the full five-minute curve. Tap a day to open it.

  • History that adds up

    Thirty days with the average and best day, every month of the year, and a lifetime total from the first switch-on.

  • Your rate, your currency

    Units turned into money at the tariff on your bill. Edit it on the dashboard, with a separate export rate.

  • Made for phones

    Add it to your home screen. Light and dark themes, nothing to install, nothing to update.

Open by design

You run your own copy, so you can see exactly where everything goes. Here is the whole journey.

Your phone
  • Sees your units and charts
  • Holds a signed sign-in cookie
  • Never sees your ShineMonitor login
Your Helio
on your Vercel account
  • Checks your dashboard password
  • Keeps the ShineMonitor login in settings
  • Stores nothing, caches for a minute
ShineMonitor
  • Already has your plant's data
  • The same cloud SmartClient uses
  • Helio only reads, never writes
Read the sourceHow it's securedHow it's built

How a unit gets from your roof to your phone

Every number in Helio is the inverter's own, so today's total matches ShineMonitor and SmartClient.

  1. 1

    Panels

    The inverter turns sunlight into household power and counts every unit.

  2. 2every 5 min

    WiFi stick

    The Eybond datalogger on the inverter uploads a reading every five minutes.

  3. 3

    ShineMonitor

    The cloud behind the SmartClient app keeps them under your account.

  4. 4

    Helio

    Your copy fetches them with your login and lays them out on one screen.

Curious where each figure comes from? Accuracy and savings

Free to run. Really.

No subscription, no server to keep on, no database to pay for.

  • Helio
    the dashboard
    $0forever
    MIT licenseNo sign-up
  • Hosting
    on Vercel
    $0/month
    Hobby planHTTPS
  • Data
    from ShineMonitor
    $0/month
    Your account
  • Domain
    optional
    Yoursor free .vercel.app
    One DNS record

Your own copy in five minutes

  1. 01

    Deploy to Vercel

    One click copies Helio to your GitHub and puts it online.

  2. 02

    Fill in six settings

    Your dashboard password, your ShineMonitor login and what a unit costs.

  3. 03

    Open your address

    Sign in on your phone, add it to the home screen, point your domain at it.

Deploy to Vercel View the source

Stick not online yet? Start with Connect the WiFi stick.

Vercel → Environment Variables
# who can open your dashboard
DASH_USER=family
DASH_PASSWORD=a-long-passphrase
AUTH_SECRET=any-random-32-characters

# your ShineMonitor / SmartClient login
SHINE_USER=you@example.com
SHINE_PASS=••••••••

# what a unit costs you
TARIFF=7.5
Export rate, currency and time zone are optional. Every setting

The fine print

Helio is small on purpose. Better you know this before you spend ten minutes on it.

  • Eybond and ShineMonitor only

    Solarman, Growatt, SolisCloud, iSolarCloud, FusionSolar and others aren't supported yet.

  • Generation, not consumption

    A standard inverter doesn't measure what your home uses, so Helio can't either. Savings show as a range.

  • An unofficial API

    Helio uses the same web API as shinemonitor.com. If they change it, Helio needs an update.

  • Five-minute steps

    That's how often the stick reports, so short spikes and dips don't show on the curve.

  • One plant, one login

    Each deployment shows one plant behind one shared password. No per-person accounts.

  • No battery views or alerts

    Hybrid systems show generation only. No CSV export or drop alerts yet.

Read every limitation

Questions people ask

Is Helio free?

Yes. Helio is MIT licensed and runs comfortably on Vercel's free plan. A custom domain is optional.

Which solar systems does it work with?

Any inverter with an Eybond WiFi datalogger that reports to ShineMonitor, the cloud behind the SmartClient app. Many inverters sold in India and elsewhere use one. If the SmartClient app or shinemonitor.com shows your plant, Helio will work.

Is the number exact?

Today's and lifetime units come from the inverter's own counters, the same figures ShineMonitor shows. The curve is sampled every five minutes.

Do I need a computer running at home?

No. The WiFi stick uploads to the cloud on its own and Helio runs on Vercel.

Does Helio store my data?

No. There's no database. It asks ShineMonitor on each visit and keeps the answer for at most a minute.

Can I use my own electricity rate and currency?

Yes. Set defaults when you deploy, or tap Edit rates on the dashboard to change them on any device.

Is it an official app?

No. It's an independent open-source project that reads your data with your own ShineMonitor login.

More in the FAQ and troubleshooting guides.

The sun is up somewhere. See what your roof is doing.

Open the live demoDeploy your own