CESS: four things, running continuously.
The Cloud Energy Storage System is a cloud layer over your battery that forecasts, decides, and reports. Telemetry from your inverter and meter streams up; dispatch commands come back down; everything it did shows up on a dashboard you can audit.
Each module hands something to the next.
Forecast predicts the site. Dispatch decides what the battery does about it. Recover and Protect are two things those decisions have to serve: using the solar you would lose, and keeping the battery healthy enough to keep doing it.
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In
Telemetry up
Your solar plant, your site meter and the battery report to CESS continuously. Nothing here needs you to change how the plant runs.
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Decide
Forecast, then optimise
Forecast predicts load and solar up to 24 hours ahead. Dispatch plans the battery against that prediction and your tariff, and replans as the day unfolds.
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Out
Commands down, results shown
Charge and discharge commands go to the battery's inverter. Everything CESS did shows up on a dashboard you can audit.
Four parts, one system.
Each has its own page with the detail. The savings come from all four running together.
PJJ Forecast
Machine-learning prediction of load and solar output up to 24 hours ahead, trained on roughly six months of your site's history plus live weather data.
How it works 02 · ControlPJJ Dispatch
Model-predictive control: it optimises against the forecast state of your site, not the present one. That is what separates it from the rule-based controllers shipped with most systems.
How it works 03 · YieldPJJ Recover
Captures the solar generation you're currently curtailing and stores it for the hours when grid power costs you most. At our pilot site that was about 30% of everything the array produced.
How it works 04 · AssetPJJ Protect
Continuous monitoring of cell health and degradation, plus an electro-healing routine (low-current cycling that smooths dendrite buildup), so the asset you paid for still performs late in its life.
How it worksA dashboard you can check us against.
The fee is a share of measured savings, so the measurement has to be in front of you. These are the screens you log in to, in English or Thai.
Dashboard
State of charge, grid import, site load, solar and battery, live, with the on-peak window marked.
Optimization
Grid import against the baseline it would have been without the battery.
Battery Health
State-of-charge history, temperature, voltage stability and alert thresholds.
Savings & ROI
Savings split by driver, and the site with the battery against the site without it.
ESG & Carbon
Solar energy used and CO₂ avoided, with the calculation method stated.
Alerts
What crossed a threshold, when, and the history behind it.
Works beside the solar you already own
CESS reads your existing plant and controls only the battery we add. Running today beside Huawei FusionSolar with a Deye battery inverter.
CompatibilityThe battery keeps working
The hardware remains yours and keeps working. It reverts to conventional rule-based control.
Find out what CESS would do at your site.
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.
Or reach us at solarbuddies@pjjsolutions.tech