Solutions

One site, then many, then the network.

We group what CESS does by the shape of what you run rather than by industry. Find your step on the ladder below, then see what the battery would earn you, driver by driver.

Get your free energy audit What it saves
By customer

Three steps. We will tell you which one we are on.

Each step is a different reader with a different reason to buy. Our pilot runs on the first one today, and the second and third are where CESS is built to go.

  1. Step 1 · Running today

    One site, more solar than it can use

    A factory with its own array that, at midday or at the weekend, makes more than the plant can take. The excess is curtailed and never shows up as a loss, while the site still buys grid power on-peak every evening.

    What CESS is to you
    A controller for one site: Forecast, Dispatch and Recover running your battery against your tariff.
    What we can show you
    Our pilot in Bangkok, where about 30% of the array's output was being curtailed before CESS connected.
    Solutions for solar producers The pilot site
  2. Step 2 · Talk to us

    Several sites, one head office

    A group running five to fifty sites has as many electricity bills, inverter brands and contractor dashboards, and no way to set one site against another. Head office still has to answer for all of them, on cost and in the sustainability report.

    What CESS is to you
    The same metering, forecasting and dispatch at every site, so each one is measured the same way.
    What we can show you
    Plainly: CESS runs at one site today. If you run several, the audit starts with one of them, and we will tell you what the rest would take.
    Talk to us about several sites
  3. Step 3 · Where this goes

    The network those sites form

    Today a CESS battery pays for itself on the bill it sits behind. Every CESS site is also metered, forecast and dispatched by software from day one, which is what a network needs from each of its members. It pays back on your bill; it is ready for the network.

    Where this goes
By what it saves

Three ways the battery earns. Two of them need no solar.

Our model of the pilot site splits the monthly saving into three drivers. Your mix will be different, and the feasibility model works it out from your own billing data before you commit anything.

Needs solar

Solar recovery

Stores what the array makes but the site cannot use, and spends it on-peak in place of grid power. The largest of the three in our pilot model.

฿6,441 – 9,000 a month, modelled

PJJ Recover
Works on grid supply alone

Peak shaving

A demand charge is set by your single highest interval of the month. The battery discharges through the moments that would set it, so the peak you pay for comes in lower.

฿2,204 – 4,784 a month, modelled

Peak shaving and the demand charge
Works on grid supply alone

Energy arbitrage

Charges when grid power is cheap and uses it when it is dear, across the on-peak and off-peak rates of a Thai time-of-use tariff.

฿1,138 a month, modelled

Arbitrage without solar

Modelled at the 120 kWh / 60 kW system our engine sized for the pilot site, from the site's own metered load. Ranges run from a conservative floor to an upper estimate. The investment case shows how each driver was modelled.

No list of industries, and that is deliberate.

Two factories in the same industry can have nothing in common on the meter: different shifts, different machines, different roofs. What decides the saving is your load, not your sector, so we model it from your own data rather than from a page about your industry.

Find out which step your site is on.

Twelve months of billing data, and we will model your load, size the system and show you the whole financial case, including when the answer is not to build.

Get your free energy audit Not sure if you fit?

Or reach us at solarbuddies@pjjsolutions.tech