Bijli· Resident
v0.3 · Live meter preview
Designed against Tibber, Octopus, Sense, Bidgely patterns
Live data · Forecasts · Disaggregation · Glanceable status
Research-driven · v0.3

Your meter,
live in your pocket.

The job of a utility app is to answer four questions in one second: do I owe money, what's my meter doing right now, what will my next bill be, and can I do something about it. v0.3 is built around those four — with the live consumption gauge as the visual centerpiece, modeled on Tibber and Octopus, and Bidgely-style appliance disaggregation one tap away.

01

Live data is the hero

A circular gauge on home, refreshing every few seconds. The meter feels alive, not archival.

02

Forecast is louder than history

"This cycle will land near ₹5,210" beats a chart of last month's bill.

03

One primary action

Pay or recharge. Everything else lives one screen away.

04

Disaggregation as engagement

"Your AC ate 49% of April." This is what makes users open the app every day.

Five screens. Built around the meter, not the bill.

Login · Home · Bill · Usage · Wallet
21:45
21:45
Anand SharmaFLAT 2-201 · SUNCITY APTS
✓
April paid · ₹1,253.04 · cleared 02 May via UPI
On grid
DG
0.42
kW · drawing now
₹0.42 / hr  ·  DHBVN supply · steady 232 V
Today
8.4kWh
This cycle
187kWh
Spent
₹1,742
Grid
162 kWh₹ 1,290
DG
25 kWh₹ 452
May bill projectedat current pace · 23 days remaining
↑ 8% vs Apr
₹ 5,210
01 MAY24% of cycle31 MAY
Your AC ran 4.2 hrs yesterday between 22:00–02:00, drawing ~1.9 kW. That single window cost ₹54 — about 40% of yesterday's bill. One degree warmer typically saves 6–8%.
21:45
Bills · April · Annexure-A
Paid · 02 May · UPI · TXN78451
₹1,253.04
FOR 1 APR – 30 APR 2026 · METER MET12345 · TARIFF DHBVN DS
Consumed
260.0kWh
Sanctioned
3.0kW
Reading start
12,000.0
Reading end
12,260.0
Slab walk
DHBVN · DS · FY26 v1
₹2.00 ₹2.50 ₹5.25 ₹6.30 ← ₹7.10
050150250 ← you500
Charge breakdown
HERC line items
Energy charges
slab walk · 260 kWh
938.00
Fixed charges
3 kW × ₹50
150.00
Fuel surcharge (FSA)
260 × ₹0.30
78.00
Electricity duty
6%
65.28
Municipal tax
2%
21.76
Total payable
₹ 1,253.04
Where it went
heuristic
Air conditioner≈ 6 hrs/day · ₹806 of bill
128 kWh49%
Lights, fansstanding load
62 kWh24%
Refrigerationalways on
38 kWh15%
Geyser, kettle0700–0830 spike
22 kWh8%
Audit ref · ZBH7-2K9P
Generated 02·05·26 · 21:45 IST
Verified · HERC FY26 v1
21:45

Your usage

Today · 8 May 2026 · live to 21:45 IST

Today
8.4kWh
↓ 12% on yest.
7-day
9.6kWh/d
↑ 3% on last wk
Society
11.2kWh/d
−14% you

Today by hour

Peak draw 2.4 kW at 22:00 — air conditioner.

1 kW 2.4 kW
0006121824

Where your kWh went · this cycle

Air conditioner~ 6 hrs/day · ₹806 of bill
128 kWh49%
Lights, fansstanding load
62 kWh24%
Refrigerationalways on
38 kWh15%
Geyser, kettle0700–0830 spike
22 kWh8%
Setting your AC to 25°C instead of 22°C typically saves 6–8% on the AC line — at your usage that is roughly ₹50–65 a month.
21:45

Wallet

Available balance
₹1,420.00
≈ 12 days at current pace · about 215 kWh
Auto-payPay last bill on 5th from default UPI
UPI
Default · UPI
9876…1234@oksbi
CC
Card · ••• 4421
HDFC · 11/29
＋
Add new method

Recent activity

April bill — Annexure-A
UPI · 02 May · TXN78451
−1,253.04paid
Wallet top-up
UPI · 28 Apr · auto rule
+1,500.00credited
March bill — Annexure-A
Card · 04 Apr · TXN66112
−1,094.20paid
Dispute resolved · CAE 2-205
Adjustment · 15 Apr
+184.00refund

Source split. Grid vs DG, made visible.

Sources · Home (DG) · Flow · Annexure-B
Most resident disputes happen at the seam between grid and DG backup. No Indian utility app shows this clearly today. Bijli treats the two as a coupled system: a single accent — teal-mint for grid, warm amber for DG — runs through the live meter, the source ribbon, the cycle split, the outage timeline, and the Annexure-B bill.
21:45

Sources

Today · 8 May 2026 · grid + DG mix, live

On grid · DHBVN supply
Steady · 232 V · 50.02 Hz
Uptime today
22 h 14 m
0.42kW now
₹ 0.42 / hr · slab tariff
Voltage
232V
Current
1.81A
PF
0.94
Freq
50.02Hz

Today by half-hour

Grid was down briefly at 14:22 — DG carried 26 minutes.

0006121824
Grid · 22 h 14 m
DG · 0 h 26 m
Coming

This cycle · 1–8 May

187 kWh total
Grid87%
162kWh
₹ 1,290
@ ₹2 – ₹6.30 slab · DHBVN DS
DG13%
25kWh
₹ 452
@ ₹18.20 / kWh fuel pass-through

Outage timeline

last 7 days
06 MAY14:22
Grid trip · Sector 54 feederauto DG · resumed grid 14:48
26 mDG ran
04 MAY09:15
Scheduled maintenance · DHBVNauto DG · resumed grid 09:31
16 mDG ran
03 MAY03:08
Brief sag · 1 phaseno DG cutover
2 mflicker

Why DG is more expensive

DG passes through diesel fuel cost plus a standby charge for fuel + maintenance readiness — typically 3–4× the slab tariff.

DG actual
₹ 452
vs.
Grid equiv
₹ 158
DG premium this cycle: ₹ 294 · backup readiness has a price.
21:45
Anand SharmaFLAT 2-201 · SUNCITY APTS
⚡
DG active · 14 min · grid trip on Sector 54 feeder · ETA 30 min
On DG
DG
1.18
kW · drawing now
₹ 21.50 / hr  ·  DG @ ₹18.20/kWh + standby
DG today
5.6kWh
DG cycle
25kWh
DG spent
₹452
Grid
162 kWh₹ 1,290
DG
25 kWh₹ 452
On DG right now — every 10 minutes of AC at 1.5 kW costs ₹ 4.55 versus ₹ 1.05 on grid. Consider the fan-only mode until the feeder is restored.
May bill projectedat current grid + DG mix · 23 days remaining
↑ DG impact
₹ 5,210 = ₹ 4,160 grid + ₹ 1,050 DG
01 MAY24% of cycle31 MAY
21:45

Energy flow

April · how 260 kWh moved from grid and DG through your appliances.

From grid
225kWh · 87%
From DG
35kWh · 13%
Total
260kWh
Sources Where it went

Flows

Grid → AC · 95 kWh @ slab tariff ₹ 599
DG → AC · 33 kWh fuel pass-through ₹ 600
Grid → Lights/Fans · 60 kWh ₹ 282
Grid → Refrigeration · 38 kWh ₹ 200
Grid → Geyser · 22 kWh ₹ 116
Your AC is the most expensive flow — 33 kWh on DG alone cost ₹ 600, the same as 95 kWh on the grid. Shift one hour of evening AC into off-peak grid hours and you save roughly ₹ 18 a day.
21:45
Bills · April · Annexure-B · CAE + DG
Paid · 02 May Grid CAE DG
₹612.00
FOR 1 APR – 30 APR 2026 · FLAT 2-201 · SQFT 1,425
Common-area electricityHERC §6.1(e)(viii) · Rs/sqft method
₹ 428.00
Society common
₹ 33,540
÷
Total covered sqft
1,11,750
×
Your sqft
1,425
=
Your share
₹ 428.00
Lift & STP
3-ph meter MET90002 · 1,840 kWh
186.40
Common lighting
3-ph meter MET90001 · 1,020 kWh
115.60
Lobby AC
3-ph meter MET90003 · 1,180 kWh
125.00
Excluded · club, retail
carved out per HERC
0.00
DG backupfuel pass-through + standby
₹ 184.00
DG fixed (standby)
3 kW × ₹ 30 / kW
90.00
DG variable
5.16 kWh × ₹ 18.20
93.91
Adjustment · rounding
—
0.09

April · combined view

Annex-A grid
₹ 1,253
Annex-B CAE+DG
₹ 612
Total
₹ 1,865
Two separate bills, two separate documents — per HERC. Disconnection of grid can never be used to recover CAE / DG dues.
Pattern

Coupled accent system

Teal-mint for grid, amber for DG — a single duality that runs through the whole app: live meter ring, source pill, ribbon, donut, bill section borders, transaction colours.

Pattern

Live meter changes state

When the building flips to DG, the home meter ring shifts from teal to amber and the rate jumps from ₹0.42/hr to ₹21.50/hr — visible at a glance, no panic.

Pattern

CAE math, never opaque

Annexure-B shows the actual CAE formula inline — society total ÷ sqft × your sqft — turning the most-disputed number on any RWA bill into a transparent calculation.

Pattern · new

Flow, not breakdown

A two-column Sankey connects sources to appliance categories, with the band width = kWh and the color carrying the source. The same data could be a pie chart — but a pie can't show that DG → AC is ₹600, identical to Grid → AC at three times the kWh.

RWA admin. Run a cycle in three clicks.

Configure · Verify · Dispatch
The committee opens this card on the 1st of each month. Every preflight check runs against real meter and tariff state — when they all turn green, the dispatch button lights up. One click and 100 PDFs (50 Annexure-A + 50 Annexure-B) are issued, 150 deliveries are queued (WhatsApp / email / SMS), and the DHBVN export pack is generated.
Issue cycle · Suncity Apartments

April 2026 · Annexure-A & B 50 flats · DHBVN single-point conn. SP-441/22 · 1,200 kW sanctioned

DHBVN · DS · FY26 v1
Preflight checks ✓
  • All 50 sub-meters onlinelast sync 0:00:03 · 1 grid + 0 DG outage today
    50/50
  • All 50 bills computedregenerable from inputs · audit logged
    ₹ 2,93,044
  • Tariff signed offby treasurer Anand Sharma · 28 Apr
    v1
  • 3 disputes still open2-203 · 4-105 · 6-107 — bills will reflect resolutions
    3 open
  • DHBVN unified-billing portal acceptsAPI responding · last upload 02 Apr OK
    ready
  • Razorpay account activeUPI · cards · netbanking · autopay enabled
    live
Dispatch preview 2
Annexure-A
50PDFs
Annexure-B
50PDFs
Deliveries
150queued
DHBVN export
1CSV pack
WA
WhatsApp · Gupshup BSP50 messages · template bill_issued_v1
@
Email50 messages · 100 attachments
SMS
SMS · MSG9150 messages · low-data fallback
≡
Print queuefor non-app residents
On click: render 100 PDFs, queue 150 deliveries, write 1 DHBVN CSV, and append 50 ledger entries. Estimated 35 seconds.
Progress · in flight 3
39 / 50 bills issued · 117 / 150 deliveries78%
Issued
39
Sending
8
Queued
3
Per-flat status50 flats
Delivered In flight Queued

Society flow. Where 10,500 kWh went in April.

Sources × destinations · society-aggregate
The same Sankey language scaled to society level. Sources on the left, destinations on the right. The killer admin insight is the right-hand stats panel: which flats consumed the most DG, which common-area meter is the hottest, and how much of the cycle's revenue came from each tier.

Suncity Apartments · April 2026 50 flats · 3 common-area meters · single-point conn. SP-441/22

10,500 kWh issued · ₹ 4,12,500
Sources Where it went
Top 5 flats consumed
38%of grid
2-103, 5-102, 1-104, 1-107, 6-105 account for 38% of grid kWh.
Highest DG share
5-102· 41 kWh DG
Lobby AC ran during the 14:22–14:48 outage; one flat had AC on through it.
Revenue split
4 : 1Annex-A : B
₹ 2,93,044 from Annexure-A · ₹ 73,800 from CAE + DG via Annexure-B.
DG premium
₹ 18,400vs grid equiv ₹ 5,800
DG cost ₹ 18,400 this cycle. Same kWh on grid would have been ₹ 5,800. The premium pays for diesel + readiness.
Audit ref · CYC-2026-04-SC · 50 bills · regenerable from meter inputs Issued 01 May 2026 · 21:45 IST · DHBVN export · sent
Design tokens

Dark by default. Energy-vibrant.

Palette

BG · 0A0F1C
Elev · 121826
Elev2 · 1A2233
Line · 1F2738
Energy · 22E6B5
Energy 2 · 0FB58A
Warm · FFB547
Error · FF5470

Type

₹ 5,210
Inter · 700 · −3% · big numbers
0.42 kW
JetBrains Mono · live data
Pay on time, see your meter, raise a dispute in two taps.
Inter · 14 · 1.5 · body
हर यूनिट का हिसाब.
Noto Sans Devanagari · co-typo

Principles

  1. P1The live meter is the home screen, not a dashboard tile.
  2. P2Forecast answers the user's actual question — what will I owe?
  3. P3Disaggregation is the engagement loop. Per-appliance breakdown wins daily opens.
  4. P4One primary CTA visible above the fold on every screen.
  5. P5Dark mode default. Energy apps are evening-use.
  6. P6Numbers in tabular monospace. Words in plain Inter. No serif theater.