Owned solution · cooling plant
vChill
Central plant and chiller performance: establish how the system actually runs, improve operations, and re-measure so conservation is evidenced rather than estimated.
Negawatts.io is technology agnostic. Measurement, verification, and conservation pathways can work with customer systems and third-party technology. vChill is the named pathway for cooling plant work inside that broader platform.
Cooling plant · CH-1 · illustrative
Full studies log ~4 weeks continuously
Measured performance
1.38kW/RT
Target performance
0.58kW/RT
at 8.5°C
Performance gap
Illustrative conservation opportunity vs target specific power
58%
Instrumentation variables
P
Electrical power
kW
Q̇
Cooling load
RT
V̇
Chilled water flow
L/s
Tₛ
Supply temperature
°C
Tᵣ
Return temperature
°C
SP
Specific power
kW/RT
System boundary · schematic
Illustrative example. Platform target is 0.58 kW/RT at 8.5°C supply condition: a performance benchmark, not a measured post-intervention result unless verified on site.
What happens on site
01
Survey
Site suitability, plant access, and measurement boundary
02
Install
Temporary instrumentation via approved field partners
03
28-day log
Continuous data under real operating conditions
04
Remove & report
Equipment out; kW/RT analysis and findings delivered
What vChill covers
From temporary measurement to operating discipline
01 Measure
Temporary instrumentation establishes kW/RT under real loads, typically over about four weeks of continuous logging.
02 Optimise
Operational and controls improvements guided by measured performance, not nameplate assumptions.
03 Verify
Re-measure after intervention. Build the evidence path toward Proof of Conservation where eligible.
Projects may be delivered by Negawatts.io directly, or through the approved partner network, depending on location, geography, scale, procurement rules, capability, and other factors. Field studies are typically considered when indicative annual conservation value is SGD 50,000 or more. Smaller opportunities start with DIY tools and DIWY support.
Plant performance gap
See intensity before you buy the badge
Typical plant intensity stacks design, commissioning, controls, and maintenance. Optimised operation reduces the whole stack.
Where the kW/RT goes
Typical plant intensity includes design, commissioning gaps, controls, and maintenance. Optimised operation cuts the stack, not just one component.
Water side
Chillers + CHWPs + CWPs + CTs
kW/RT · design baseline ≈ 0.85 shown in stack body
Air side
AHUs + FCUs
kW/RT · design baseline ≈ 0.40 shown in stack body
Illustrative redraw from engineering practice (IDPM-style analysis). Percentages and levels are not a site guarantee. Align with measured plant data on each project.