Contract Type iPerformance Partnership: zero upfront cost, savings are shared with Ener.co based on verified performance. Fee for Service: one-time project fee, client keeps 100% of all savings.
Performance Partnership
Fee for Service
Price / Ton iOne-time EnerCoat® project cost per ton of cooling capacity. Default $750 for condenser-only, $1,000 for condenser + evaporator.
$
/ton
Savings Streams iToggle which savings streams are included in the Performance Partnership deal structure. Energy is always included. Toggling off CapEx or R&M excludes them from Ener.co's payment calculation but the underlying savings still exist. In Fee for Service mode, all streams are always on.
Energy SavingsAlways On
CapEx Deferral SavingsAlways On
R&M SavingsAlways On
Deal Terms
Ener.co Share iPercentage of verified savings that goes to Ener.co. Use the advanced schedule for year-range splits.
%
From
To
Ener.co%
Project Horizon iNot a contract term. This sets how many years of savings to project — the deal runs as long as performance holds.
No fixed term — projections assume continued performance above EER threshold
Equipment Type iCondenser Only: treats the outdoor coil only. Condenser + Evaporator: treats both indoor and outdoor coils for greater efficiency gains (~7% additional EER improvement) and higher coating coverage. Pricing adjusts automatically.
Condenser Only
Condenser + Evaporator
Cooling Capacity iTotal nameplate cooling capacity of equipment being treated, in refrigeration tons.
tons
Average Age iYear the equipment was installed. RUL is calculated from regional equipment life (16–22 yr) with a 3-year minimum. Extended Useful Life (EUL) defaults to RUL + 10.
Extended Useful Life — With EnerCoat® iExtended Useful Life (EUL): how long the equipment will last with EnerCoat® treatment. Defaults to RUL + 10. Supported by 13+ years of monitored data at NYBC and 9+ years at NYT with near-zero degradation.
yrs
Equipment Condition iAdjusts the baseline kW/ton and estimated EER improvement. Poor: heavily fouled or neglected coils (higher kW/ton, greater improvement potential). Average: typical commercial maintenance. Good: well-maintained or recently serviced (lower kW/ton, more modest improvement).
Poor
Average
Good
Replacement Cost iTotal installed replacement cost per ton (equipment + labor + crane + piping + controls + commissioning). $2,200/ton for small rooftops under 20 tons. $3,000/ton for standard 20+ ton commercial. $5,500/ton for hospitals, clean rooms, high-rise chillers. $9,000/ton for data centers, trading floors, pharma — where redundancy and downtime costs are factored in. Real-world costs vary by location (±40%), facility type, and access complexity. Source: RSMeans 2024 Mechanical Cost Data, contractor quotes (SF Bay Area calibrated), Google facilities data.
$
/ton
Must be between $0 and $10,000
Region iSets climate-adjusted defaults for equipment life (16–22 yr), energy rate, and degradation rate. Hot/humid regions shorten equipment life and increase degradation.
Building Type / EFLH iEquivalent Full Load Hours per year. Select the building type closest to your client's facility — this sets a typical EFLH. Office/Warehouse: ~1,500 hrs. Medical/Mixed-Use: ~2,500 hrs. Manufacturing/Refrigeration: ~4,000 hrs. Data Centers/24-7 Facilities: ~6,000 hrs. Source: State TRMs, ASHRAE 90.1 climate zone mapping, DOE CBECS 2018.
hrs
Must be between 0 and 8,760 hours
Energy Rate iBlended electricity rate in $/kWh. Auto-set by region. Override with the client's actual rate from their utility bill if known. Source: EIA-861 2024 average commercial electricity rate by state.
Model Number optional — enables factory spec lookup
kW / Ton auto-calculated from age & conditioniCurrent field kW/ton — not nameplate. Auto-derived from install year, condition, and ASHRAE nameplate minimum using compound degradation (1%/yr good, 2%/yr avg, 3.5%/yr poor), capped at 1.5× nameplate. Sub-metered data is ideal — override if you have it. Source: ASHRAE 90.1 minimum efficiency tables; degradation rates from NREL/DOE field studies, Parker et al. FSEC.
kW/ton
EER Improvement (Savings %) iAuto-estimated from M&V field data using a log-curve fit of EER improvement vs. equipment age. Evaporator adds 7%. Capped at 95% of factory nameplate. Override manually and reset anytime.
%
Based on M&V field data
Coil Degradation — Without EnerCoat® iUntreated equipment degrades 2–4%/yr from coil fouling and mechanical wear. Default varies by region. Source: NREL/DOE field studies; Parker et al. FSEC-CR-1385-02; ASHRAE RP-1237.
%/yr
Coil Degradation — With EnerCoat® iEnerCoat®-treated equipment degrades ~0.25%/yr. Source: NYBC monitored data (13+ yr continuous), NYT monitored data (9+ yr continuous), both with near-zero degradation.
%/yr
R&M Factor % of replacement costiAnnual maintenance cost as a percentage of equipment replacement value. ASHRAE RP-1237 data supports 4% as the baseline for commercial HVAC — i.e., $120/ton/yr on a $3,000/ton system. Commercial coil cleaning typically represents 15% of annual HVAC R&M spend, based on ASHRAE-standard annual service frequency and published per-unit cleaning rates. APP contracts assume this line item in full and apply fouling-driven reduction only to the remaining non-coil R&M, to avoid double-counting. FFS contracts apply fouling reduction to total R&M. See Engineering References below for full basis.
%
Client Cleans Coils? iDoes the client currently perform regular coil cleaning? If No, the "without treatment" scenario assumes steeper degradation (2× untreated rate), 50% shorter equipment life, and a 20% energy penalty from accumulated fouling — reflecting the real cost of neglected equipment. APP savings are dramatically larger because Ener.co is initiating PM for the first time. Sources: JLL portfolio benchmark, DOE/FEMP dirty-condenser guidelines.
Yes
No
Discount Rate iRate of return assumption for the capital reserve sinking fund. DOE uses 9% (7% real + 2% inflation). We use 7% to be conservative. Adjust to match client's actual cost of capital or hurdle rate. Source: DOE FEMP Life Cycle Cost Analysis guidance.
%
Replacement Disruption Cost % of replacement costiCovers temporary cooling, downtime, crane/rigging, and lost productivity during a full equipment replacement. Industry estimates typically range 5–15% of replacement cost.
%
Financial Impacts
EER Improvement iEnergy Efficiency Ratio improvement from EnerCoat treatment. Estimated from M&V field data using equipment age, condition, and whether evaporator is included.
22%
Energy efficiency improvement
Life Extension iAdditional years of equipment life gained by treating with EnerCoat. Calculated as Extended Useful Life (EUL) minus Remaining Useful Life (RUL). Based on 13+ years of monitored data at NYBC.
+10 yrs
Equipment life extension
i
—
i
—
Cumulative Savings by Year
EnergyR&MCapital
15-Year Total Cost of Ownership Comparison iSide-by-side comparison of four scenarios over the full project horizon. Each card includes energy, R&M, capital reserves, and scenario-specific costs (emergency premiums, disruption, Ener.co payments, or project fees). The lowest total cost is highlighted. All replacement costs are inflation-adjusted at 3.5%/yr (FRED PPI HVAC equipment index).
LOWEST COST
Run to Fail iModels running equipment 5 years past its remaining useful life (RUL). Degradation accelerates 1.5×, R&M costs scale from 2× to 3×, then emergency replacement at 25% premium with 2× unplanned disruption cost. No capital reserves — all reactive.
—
Energy —R&M (escalated) —Emergency Fund —Emergency Replace (financed) —Disruption (unplanned) —
LOWEST COST
Buy New Unit iModels planned replacement at the end of remaining useful life (RUL). Capital reserves are built via sinking fund from year 1 to cover replacement cost. Includes disruption at replacement and a new sinking fund for the next cycle. Replacement unit efficiency is derated 10% from nameplate to reflect real-world field conditions (PNNL).
—
Energy —R&M —Capital Reserve —Downtime Disruption —
LOWEST COST
Performance Partnership iEner.co treats and monitors equipment. Savings are shared — client keeps their split of energy, R&M, and capital reserve savings. Ener.co's share covers ongoing service. Equipment life extends to Extended Useful Life (EUL) with slower degradation.
—
Energy —R&M —Capital Reserve —Ener.co Payments —
LOWEST COST
Fee for Service iOne-time EnerCoat® project at a fixed $/ton price. Client keeps 100% of all savings. Same performance and life extension benefits as Performance Partnership, with no ongoing payments.
—
Energy —R&M —Capital Reserve —Project Cost —
Year One Reduction in Annual Total Cost of Ownership: iCompares Year 1 annualized costs with and without EnerCoat treatment. Includes energy, R&M, and capital reserve contributions. This is a snapshot of the immediate budget impact — savings compound over time as degradation diverges.
—
Annual ATCO Reduced by —
—→—
Year 1 Monthly Payment iEner.co's monthly share of verified savings in Year 1. Calculated as total Year 1 savings (across included streams) × Ener.co's percentage ÷ 12. Payments scale with actual verified performance — if savings decline, payments decline.
—
If overall EER goes below 11% → Client pays $0
Energy Reduction iYear 1 kWh savings based on EER improvement × cooling capacity × equivalent full load hours. CO₂ calculated using EPA eGRID regional emission factor (0.4 kg CO₂/kWh average) applied to cumulative energy savings over the project horizon.
—
kWh saved annually (Year 1)
—
tonnes CO₂ avoided over 15 years
ATCO reflects all three savings streams. Deal economics above include only the selected streams.
Year One Reduction in Annual Total Cost of Ownership: iCompares Year 1 annualized costs with and without EnerCoat treatment. Includes energy, R&M, and capital reserve contributions. This is a snapshot of the immediate budget impact — savings compound over time as degradation diverges.
—
Annual ATCO Reduced by —
—→—
Simple Payback iProject cost divided by Year 1 total savings (energy + R&M + capital reserve). Represents how quickly the one-time Fee for Service investment pays for itself through verified savings.
—
Project cost: —
Return on Investment iTotal savings over the project horizon minus project cost, divided by project cost. Represents the net return on the one-time Fee for Service investment.
—
Over 15-year horizon
Energy Reduction iYear 1 energy reduction calculated as: cooling capacity × current kW/ton × EFLH × EER improvement percentage. Based on sensor-verified performance data.
—
kWh saved annually (Year 1)
—
tonnes CO₂ avoided over 15 years
Energy Savings iMeasured via sensor-verified EER, normalized to outdoor temperature using IPMVP Option A/B. Savings calculated against a weather-adjusted degrading baseline. Source: IPMVP Core Concepts 2022, ASHRAE Guideline 14-2014.
—
Year 1 Savings
Without: —/yr
With Ener.co: —/yr
CapEx Deferral SavingsiNPV of deferring replacement from RUL to EUL. The present value of replacing sooner minus the present value of replacing later, annualized over the project horizon.
—
Annual NPV savings
PV without (3-yr life): —/yr
PV with (13-yr life): —/yr
R&M Savings iBased on ASHRAE RP-1237 baseline (4% of replacement value/yr). Untreated costs escalate with degradation; treated costs grow slower. The widening gap is your R&M savings. Source: ASHRAE RP-1237 Owning and Operating Cost Database.
—
Year 1 Savings
Without: —/yr
With Ener.co: —/yr
Sensitivity Analysis — What If Savings Differ? iShows how key metrics change if actual EER improvement is higher or lower than estimated. Each column recalculates energy and R&M savings independently at that EER level. Capital reserve savings scale proportionally. The 50% threshold row represents the minimum performance guarantee — below this, client payments pause.
Energy and R&M recalculate independently at each EER scenario. Capital Reserve scales proportionally up to the baseline, then caps. If EER falls below 50% of the modeled estimate, client payments pause until performance recovers.
Scenario
EER Improvement
Total Savings
Client Share
Ener.co Share
Project Cost
Net Savings
Simple Payback
ROI
Year-by-Year Breakdown
Year
Energy Savings
Capital Reduction
R&M Savings
Deal Value
Split
Client Share
Ener.co Share
Mo. Payment
Total Savings
Cumulative
ROI
Engineering References
▸
Coil Cleaning & R&M Allocation
Commercial coil cleaning typically represents 15% of annual HVAC R&M spend, based on ASHRAE-standard annual service frequency and published per-unit cleaning rates ($150–$500/unit depending on tonnage and accessibility). The remaining 85% covers compressor service, refrigerant management, controls, belts/bearings, and general mechanical maintenance.
APP (Performance Partnership) contracts assume the coil-cleaning line item in full — Ener.co performs or contracts the cleaning as part of the treatment regime. Fouling-driven R&M reduction (22% baseline) is applied only to the non-coil portion (85%) to avoid double-counting. Net R&M savings rate: ~33.7% of baseline.
FFS (Fee for Service) contracts apply the 22% fouling reduction to total R&M. The client retains all maintenance responsibility including coil cleaning.
Neglected Equipment — No-Clean Boost
When a client currently performs no coil cleaning and enters an APP contract, the "without treatment" baseline reflects the real cost of neglected equipment:
2× degradation rate — fouled condensers and evaporators drive compressor head pressure up, accelerating wear
50% shorter equipment life — JLL 25-year portfolio benchmark: neglected DX units reach end-of-life in roughly half the time of maintained units
20% energy penalty — DOE/FEMP guidance: dirty condenser coils can increase compressor energy consumption by 20–30%
Ener.co initiating PM (cleaning + coating) for the first time produces dramatically larger savings versus the neglected baseline. The "with treatment" scenario uses normal treated degradation curves — once equipment is maintained and coated, performance tracks the standard treated path.
References
ASHRAE RP-1237 — Maintenance cost benchmarks for commercial HVAC equipment
JLL 25-Year Portfolio Benchmark — 545% ROI on preventive maintenance programs; neglected equipment life ~50% of maintained
DOE/FEMP O&M Best Practices Guide — Dirty condenser coils increase compressor energy 20–30%
NREL/DOE Building America (2006) — Equipment degradation rates by climate zone
ASHRAE 90.1-2022 — Minimum efficiency standards for commercial HVAC
