Improving AC efficiency:

What does Ener.co do?

Ener.co restores and protects the performance of existing commercial cooling equipment, cutting its energy use and extending its service life. Our flagship product, Enercoat®, is a proprietary nano-polymer coating applied to the coils after deep cleaning. It shields the coil from corrosion and fouling while preserving heat transfer, and its effect can be sub-metered unit by unit.

What are the benefits?

With monitoring, a custom dashboard tracks each unit's efficiency in real time, so every benefit below is measured rather than assumed, and repair and replacement decisions rest on data.

• Lower energy costs: less electricity for the same cooling, and lower peak demand.
• Deferred capital expense: equipment stays in service longer, so replacement moves out by years.
• Lower maintenance costs: a protected coil puts less strain on compressors and fans.
• Drier, more comfortable air: a restored system recovers capacity, including its ability to pull moisture from the air, the harder part of an air conditioner's job. Lower humidity supports healthier indoor air.

How much energy does it save?

Across more than 50 measured units at 35 sites, the majority of results show energy savings of 10% to 20%, sometimes more. Results depend on equipment age, condition and run hours. At The New York Times printing plant, 29 coated rooftop units used 18% less cooling electricity, a result reviewed by TRC for NYSERDA. Verizon has treated 300 systems across 36 data centers, and its measured sites averaged about 16% savings.

How much longer does equipment last?

Coil decline is a primary driver of rising run times, compressor stress and early replacement. ENERGY STAR notes that dirty coils make a system run longer, raising energy costs and shortening equipment life. Protecting the coil holds performance for years:

• The New York Times: a 90-ton rooftop unit coated in 2015 gained about 13% in efficiency and still held that gain when re-measured nine years later.
• New York Blood Center: a chiller coated in 2011 still drew about 10% less power when re-measured in 2024, nearly 13 years later. The initial result was verified in a PE-stamped report by Vidaris.
• Baystate Health: two rooftop units already 11 years old when coated in 2014 stayed in service another 12 years.

How do you prove the savings?

Our measurement and verification follows IPMVP Option B. We sub-meter compressor power and cooling output to set a baseline, repeat the same measurement after treatment, and report results per unit in kWh, peak kW, dollars and CO2. With monitoring, a custom dashboard shows the savings in real time and lets you explore the impact by unit, building and portfolio.

Is this just coil cleaning?

No. Deep cleaning is the preparation step. Enercoat is what keeps the coil in pristine condition for the remainder of its life, protecting it from corrosion and fouling while preserving heat transfer.

What equipment does it work on?

Both sides of the refrigeration cycle.

• Condenser side: packaged rooftop units, split-system condensing units, air-cooled chillers, dry coolers and fluid coolers, data-center condensers.
• Evaporator side: air-handling units, CRAC and CRAH units, fan-coil units, PTAC and VTAC units, rooftop-unit evaporator coils.

How is this different from a corrosion coating?

Conventional coil coatings are engineered for corrosion protection and qualified in salt-spray tests, often at some cost to heat transfer. Enercoat is formulated to protect the coil and preserve its heat transfer. We judge it by measured energy use and equipment life on customers' own units, not by laboratory hours alone.

What is the payback?

Payback depends on equipment age, run hours and electricity rates. Our savings calculator gives a first estimate for your own equipment in about a minute. For reference, Verizon's multi-site program paid back in 30 months.

How do we start?

Start with our savings calculator, or contact our team at info@ener.co or +1 212-572-0784 to discuss your equipment.