Every unit, accounted.Every meter, live.
हर यूनिट का हिसाब
Bijli is HiSociety's prepaid smart-metering platform for Indian housing societies. Residents see live consumption, top up their wallet, and watch their projected bill move. Committees get HERC-compliant Annexure-A + Annexure-B bills, an audit trail every rupee can be traced through, and DHBVN-export packs at one click.
Inside the app
Every screen, on the resident’s phone
Six screens from the live Bijli resident app — the data is real, the design ships dark by default, and every number is regenerable from the meter inputs.
Home
Live gauge, projected bill
Usage
Day / week / cycle / year
Wallet
Balance, days left, top-up
Sources
Grid vs DG, live timeline
Energy flow
Sankey: source → appliance
Annexure-B
CAE + DG bill, paid status
What residents get
Built around the four questions every resident asks
Do I owe money? What's my meter doing now? What will the next bill be? Can I do something about it? Bijli answers all four in one tap.
Live consumption
Circular gauge refreshes every few seconds. See kW + ₹/hr at the moment the appliance kicks in.
Prepaid wallet
Razorpay top-up · balance-to-days conversion · auto-warn at 20% · no surprise disconnections.
Projected bill
Cycle-to-date burn rate × days remaining = where you'll land this month. Move it down before bill-day.
Grid vs DG, transparent
Source-tagged consumption: see exactly how much ran on the genset and what it cost. Three slabs, no mystery.
Appliance disaggregation
"Your AC ate 49% of April." Drives engagement — and helps the committee plan capacity.
HERC-compliant bills
Annexure-A (energy) + Annexure-B (CAE/DG) as separate PDFs per HERC §6.1(e). Regenerable from inputs.
Tamper-evident audit
Every reading, tariff change, and bill is hash-chained. The committee can prove any rupee on demand.
Low-data fallback
SMS-first option for residents without the app. WhatsApp bill delivery. Works in low-bandwidth society apartments.
DHBVN export pack
Per-cycle CSV pack for the Haryana discom portal. Committee runs Annexure compliance in one click.
Compliance, end-to-end
Built to satisfy the regulator, not just the resident
HERC §6.1(e)(viii)
CAE formula implemented verbatim — society total ÷ covered sqft × flat sqft. Inline shown on every bill.
HERC §6.1(e)(vii)
Tariff governance: versioned, effective-dated. Bill regenerates identically from inputs. No magic numbers.
Annexure-A + B separation
Per the 9-Oct-2020 HERC Order: energy and CAE/DG charges issued as separate bills. Disconnection cannot recover CAE dues.
IS 16444 sub-meters
Only certified sub-meters in the field. Rejected non-compliant gear keeps committee on the right side of audits.
DHBVN export pack
Per-cycle CSV pack ready for the Haryana discom portal. One click — no spreadsheet reconciliation.
Hash-chained audit log
Every reading, tariff change, bill line, payment, and adjustment is SHA-256 chained. Any dispute is replayable.
Frequently asked
Which states is Bijli available in?▾
Initial rollout is Haryana (HERC + DHBVN compliance is built-in — Gurgaon, Faridabad, Sonipat, Karnal, Panipat societies). The architecture is regulator-agnostic; Maharashtra (MERC) and Karnataka (KERC) are next. Talk to us if you want your state prioritised.
How is this different from a regular sub-meter?▾
Two things. First, it's prepaid — residents top up a wallet, and the meter never disconnects without warning. Second, the audit trail: every reading, tariff change, and bill line is hash-chained, so a resident dispute can be resolved by replaying the raw inputs, not by trusting a stored bill.
Do residents have to use the app to get bills?▾
No. The app is for engagement and recharge; the PDF Annexure-A + Annexure-B bills arrive on WhatsApp / email every cycle regardless. Low-bandwidth residents can use SMS for balance checks.
How does grid-vs-DG billing work?▾
The gateway has a digital input wired to the changeover switch. Every reading is tagged grid or DG at the device. Bills split the kWh between the slab tariff and the DG premium tariff transparently — no more flat "genset charges" with no breakdown.
What about installation and meter cost?▾
We bring DLMS meters and gateways, install per-flat, and wire the gateway to the changeover. Cost depends on flat count and whether the society already has an MCB cabinet retrofit. Reach out for a pilot quote.
Is the audit trail compliant with HERC requirements?▾
Yes. HERC §6.1(e)(vii) requires regenerable bills with versioned tariffs and dated effectivity. HERC §6.1(e)(viii) defines the CAE methodology (society total ÷ covered sqft × flat sqft) — Bijli implements it verbatim. Annexure-A and Annexure-B ship as separate bills per the 9-Oct-2020 HERC Order.
Pilot Bijli at your society
Tell us about the society — flat count, current sub-metering setup, and whether you already have a DG. We'll scope the pilot (typically one tower, 30-60 days) and come back with a quote inside 48 hours.
Already a HiSociety customer? Bijli plugs into your existing society account — no separate login for the committee.