TokCheck
A solar plant on one screen: how much it produces, where it goes and what that is worth in roubles.
TokCheck is a monitoring service for solar power plants. The object page answers three owner questions: what the plant is doing now, whether all is well and how much it earns. The demo is a hybrid plant with 26 inverters: each question gets its own card on a single screen.
Why we took it on
A plant's data — flows in kilowatts, voltages, inverter statuses — is clear to an engineer, but the owner needs an answer in human terms: is all well, and what's it worth. I built the object page as three layers: live state (power and status), dynamics (balance over a period) and the result in roubles. The technical details — grid phases and each inverter's status — remain but don't overshadow the main thing.
What blocked — and what changed
What blocked
- Energy flows — sun, load, grid, battery — are hard to keep in mind as numbers.
- The state of the inverter fleet has to be judged at once, without opening each one.
- An owner doesn't convert generation in kilowatt-hours into money.
- A plant has many roles — owner, installer, vendor, client — and each needs its own navigation.
What changed
- A “Current power” diagram: sun, load, grid and battery as nodes around the centre with power at each.
- A “Status” block: object status, an inverter counter in coloured chips — 16 green, 4 grey, 1 yellow, 3 orange and 2 red — phase parameters L1–L3 and the last message.
- “Balance”: a stacked chart of income and expense for a day, month, year or all time with six flows and date navigation.
- “Income”: generation, grid consumption, savings and sales — each row with money — and a large total below.
How I worked
- 01
Three questions, three cards
State, dynamics, money. Each card answers one question and doesn't duplicate the others.
- 02
Colour as status, not decoration
Green, grey, yellow, orange and red — only for inverter states and messages; flows on the chart have their own six colours with a legend.
- 03
Money next to kilowatt-hours
Every income row shows energy and a rouble amount in one line, the total big: 30,000 ₽ saved plus 92,000 ₽ sold.
- 04
Roles in navigation
Home, Objects, Clients, Installers, Vendors and Messages — a section for each role; on an object the tabs “About”, “Devices”, “Analytics”, “Users”, “Structure”.
Screens that move the work
The object page
The header “Stand 10K” with the type “Hybrid SPP 1×3Ph”, address, installed capacities and a list of current states (“Power supply from grid input No.2”, “Sleep, waiting for the Sun”). Next to it a current-power diagram and a status block: object normal, 26 inverters in five colours, grid parameters by phase and the message “Low grid voltage”. Below, “Balance” — an income/expense chart with a legend of six flows — and “Income”: generation 5,340 kWh, savings 30,000 ₽, sales 92,000 ₽, total 122,000 ₽. The header carries a week's weather forecast and notifications.
- Power diagram, status and money on a single screen
- Weather forecast in the header, next to generation
- Day, month, year, all time — one switch for the chart and for income
The outcome in numbers
- The owner gets the answer to the main question — what the plant earned — on the same screen where its state is shown.
- A fleet of dozens of inverters reads by colour; details open only when needed.
- One navigation serves owners, installers, vendors and clients.