What problem are we solving?
40–60% of your electricity bill goes to cooling
Your chiller plant is likely the single biggest energy consumer in your building — running 24/7, often at far below peak efficiency.
After 10 years, maintenance costs accelerate
Aging compressors, leaking refrigerant, failing controls. Every year you delay replacement, you pay more — and risk an unexpected shutdown.
THB 5–30M to replace — capital you'd rather deploy elsewhere
A full chiller plant upgrade ties up capital for years. With CaaS, that budget stays in your business.
What is Cooling as a Service?
CaaS is simple: Greenergy invests in your cooling system. We design, install, and operate it. You pay a fixed monthly fee based on the cooling your building actually uses.
No capital outlay.
No maintenance headaches.
No performance risk.
If the system underperforms, that's our cost — not yours. Your energy performance is guaranteed by contract.
Compare | Traditional | CaaS |
|---|---|---|
Cash Flow Impact | Large CAPEX hits | Predictable OPEX monthly fee |
Upfront Investment | THB 5-30M | ฿0 |
Equipment Risk | Yours - breakdowns are your problem | Greenergy's — we fix it, we pay for it |
Maintenance | You hire, you manage, you budget | Included — our team, our cost |
Efficiency Over Time | Degrades without investment | Guaranteed — contractually locked |
Service Models

Model A: Efficiency
Optimise your existing chiller. We upgrade controls, optimize settings, and improve efficiency — reducing your energy bill without replacing equipment.
Best for: Chillers 5–10 yrs old, still functional but underperforming

Model B: Replacement
Upgrade to a new high-efficiency chiller. We remove aging equipment and install a right-sized system. Greenergy owns it — you pay only for cooling delivered.
Best for: Chillers 10+ yrs old, high maintenance, frequent breakdowns

Model C: Full Management
Complete lifecycle management + SLA. Equipment, operation, maintenance, monitoring, and guaranteed uptime. One contract. One contact. One monthly fee.
Best for: Hospitals, data centers, critical facilities — zero downtime tolerance

Model D: Green Energy
Solar + chiller integration for ESG. Combine rooftop solar with a new chiller system. Power your cooling with clean energy. Hit ESG targets while cutting costs.
Best for: Organizations with carbon reduction commitments or ESG reporting

Hospitals & Healthcare
Cooling failure in a hospital isn't an inconvenience — it's a patient safety risk. Your HVAC runs 24/7, accounts for the majority of your electricity bill, and is under pressure from ESG compliance. CaaS means guaranteed uptime, 20–30% savings, and zero capital burden — so you can focus on patient care, not chiller maintenance.

Grade A/B Office Buildings
More than 60% of Grade A/B office buildings in Bangkok run chillers over 10 years old. That means rising electricity costs, falling tenant comfort, and a ticking clock to expensive replacement. CaaS lets you upgrade without CAPEX — start saving from month one and increase your building's value for tenants.
Who do we Serve
How it Works

Why Greenergy
20-30%
Guaranteed energy savings — in your contract, not just a promise
฿0
Your investment. Zero risk. We fund everything.
SLA
Uptime & performance guaranteed — if we miss it, we pay
10+ Years
Engineering solar & energy systems across Thailand
Free Energy Audit
Book your Free Energy Audit today - no obligations!

