
Your week, hour by hour
When your building draws power, and what for. Those pale Saturday and Sunday cells are it running for nobody.
One bill is enough to start: we read your meter references from it, then we go and fetch your real consumption data. The algorithms built by the JOLA team analyse it hour by hour and turn it into costed recommendations.
Nobody on your team knows how to read a load curve — that is normal, it is not your job.
It is our AI's.

A photo or a PDF. It is not what we analyse: we read your electricity and, where relevant, gas metering points from it.
Your real consumption, at the finest interval available, from your grid operator. With your authorisation.
Our algorithms compare, detect anomalies and produce costed, prioritised actions. That is where the product lives.
An online workspace fed by your own electricity and gas consumption. Nothing to install, no box, no electrician.

When your building draws power, and what for. Those pale Saturday and Sunday cells are it running for nobody.

Ranked by amount, with the site concerned. Not one more alert: a list of things to do.

Not a 200-page audit. Costed, prioritised actions with their payback — and most cost nothing.
The problem
You get a bill instead. This is not bad management — no tool has ever been built for a company your size.
Electricity use — typical week (kW)
Example: 200 m² of offices, real anonymised data
1 140 €/year
of waste identified on this site, of which 890 € through simple adjustments and 250 € through a contract change.
We have no customer testimonial to show you yet: JOLAWATT is equipping its first sites. What we can do is show you exactly how we calculate.
We do not work from your bill: it only serves to identify your meters. The analysis runs on your real electricity and gas consumption, recorded at the finest interval available and supplied by your grid operator, which our algorithms cross with public consumption ratios by type of premises.
Up to 17,520 measurement points per year and per meter — electricity, and gas if you have it — retrieved from your grid operator with your authorisation. This is your data, not a sector average.
Reference consumption per square metre and per activity, from the CEREN surveys published by the SDES, the French "absolute values" decrees and ADEME averages. Every figure links to its source.
The avoidable share, on the other hand, comes from no published statistic: it is our own hypothesis, and we own it. Before your first analysis, every amount shown is an estimate — we say so everywhere it applies.
Hosted in a French data centre, processed under GDPR, never resold to an energy supplier. Ever.
Two pieces of information are enough for an order of magnitude. The exact figure needs your real data.
Type of premises
Estimated from public consumption ratios and a price of 0,20 € per kWh. The avoidable share is a JOLAWATT hypothesis, set out in our calculation note.
The free plan tells you how much you are losing. The paid one tells you how to get it back, and keeps watch.
0 €
A full picture, once.
39 €excl. VAT / month / site
Billed 468 € excl. VAT per year, per site.
Your energy manager, continuously.
Paid by card.
One site = one SIRET and one location. The number of meters makes no difference, electricity or gas: premises with three of them is still one site. The Network rate applies from the fifth site.
JOLAWATT has just opened. The first twenty sites get their first year of Premium free, 468 € per site, and talk directly to the team building the tool: your remarks become next month's features. It is how we trade your trust for something real.
No. JOLAWATT is an online service: you upload a bill, then authorise access to your meter data. No hardware, no electrician, nothing touched on your installation.
No — the bill is only a way in. We read your meter references from it, then we fetch your real electricity and gas consumption. It is that hour-by-hour data our algorithms work on: a bill alone does not say when you consume, so it says nothing about what to fix.
Yes, whoever supplies you: we read the data held by your grid operator, which is the same for everyone, for both electricity and gas. Without a smart meter the analysis falls back on your bills — less precise, but enough to spot the essentials.
Not yet, and we will not invent any. We have just opened and we are equipping our first twenty sites. In exchange, our calculation note is public and the diagnostic costs you nothing.
It is stored with a French host, used only for your analysis, and deleted on request. We resell it to nobody, least of all an energy supplier.
Let us be honest about the order of magnitude: below roughly 80 m² of offices, the detectable waste falls under the cost of the subscription. A restaurant or a bakery, on the other hand, pays for itself from 40 m² — their equipment draws far more per square metre. The free diagnostic will tell you before you commit, and if it is not worth 39 € a month, we will say so.
JOLAWATT is a young French company, currently being registered. The service has just opened, and you talk directly to the people building the tool: write to contact@jolawatt.fr and we answer ourselves.