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One page for the whole ordinance: the emissions standard your building actually has to meet, what the gap costs at the city’s published rates, and the Section 48E, MACRS and SMART 3.0 economics that make closing it cheaper than paying for it.
20,000 sq ft
Covered from
$234
Per tCO₂e over the limit
$1,000/day
Emissions-standard fine
2050
Every use reaches zero
Boston BERDO 2.0 sets an emissions standard in kgCO₂e per square foot per year for each of 13 building uses, stepping down every five years to zero in 2050. A building over its standard has two options with very different prices. An Alternative Compliance Payment costs $234 per metric ton of CO₂e above the limit and is a compliance mechanism, not a fine — a building that pays is compliant. A building that neither reduces nor pays is fined per DAY, not per ton: $1,000 a day for a non-residential building of 35,000 gross sq ft or more (or 35+ residential units), $300 a day for the 20,000–34,999 sq ft / 15–34 unit tier, with a separate $300 or $150 a day for failing to report. No penalty is assessed until 30 days after a notice of violation. On-site solar is one of the city's three named compliance mechanisms and the only one that also lowers the electricity bill, which is why it usually beats buying RECs or paying the ACP once the Section 48E commercial credit (30% base, up to 50% with adders), MACRS depreciation, SMART 3.0 and Section 6417 direct pay are stacked.
Almost every third-party page on BERDO quotes a penalty of “$150 to $300 per metric ton.” No such charge exists. Those are real BERDO numbers — they are two of the dailyfine rates — but they are not per-ton, and they are not the payment. Getting this wrong changes the answer to every capital decision that follows, so here is the ordinance’s own structure.
Compliance mechanism
The Alternative Compliance Payment. Paid annually on every ton above the limit, into the city’s Equitable Emissions Investment Fund, which funds decarbonization in Boston’s environmental justice communities. The city is explicit: ACPs are not the same as fines — an ACP is a compliance mechanism. A building that pays is compliant.
Ordinance §(m)(d). The price is reviewed by the Review Board every five years and may be adjusted by regulation.
Fines
Charged per day, tiered by building size, and only reaching a building that is out of compliance. Each day of the calendar year, and each day after, is a separate violation.
Ordinance §(r), restated in the regulations adopted May 13, 2026. No penalty is assessed until 30 days after a notice of violation, and correcting inside that window avoids it. The Review Board may reduce or waive penalties at its discretion.
What this means for a capital plan:the $234 payment is the price ceiling every abatement measure competes against. A measure that removes a ton of CO₂e for less than $234 a year, recurring, beats writing the cheque — and unlike the cheque it keeps working as the standard steps down. The per-day fine is not an alternative to either; it is what is on the table for a building that does neither.
Enter your building use, gross floor area and reported emissions. The calculator applies the ordinance’s own standard for your use and the current compliance period, then prices the gap at the $234/tCO₂e payment and shows the per-day fine exposure alongside it. Nothing is assumed for you: leave the emissions field blank and the results stay blank rather than resting on a typical-building guess.
Your building's emissions standard, the gap to it, and what the gap costs — at the city's own published rates.
The 13 uses BERDO sets a standard for. A building with more than one primary use may apply for a blended standard, which this calculator does not model.
Residential buildings are covered on unit count as well as floor area: 15 or more units are covered, 35 or more units sit in the large tier.
The figure your BERDO report or ENERGY STAR Portfolio Manager export shows for the year.
Nothing is assumed for you. Until you enter your own reported figure the results stay blank rather than resting on a typical-building guess.
BERDO's electricity emissions factor is published annually by the Boston Environment Department, so no value is pre-filled here. Enter the current one and the tool will size the on-site generation that would erase the gap.
Coverage
Large tier — emissions compliance began in 2025
Assessed against calendar year 2026, which falls in the 2025–2029 compliance period.
Your standard, 2025–2029
5.3 kg/sf
kgCO₂e per sq ft per year, ordinance Table 1
Emissions the standard allows
530 tCO₂e
standard × 100,000 sq ft
Your reported intensity
—
Enter your reported emissions.
Gap to the standard
—
Enter your reported emissions.
Alternative Compliance Payment at $234/tCO₂e
—
Enter your reported emissions above. Nothing is assumed for a building we have no figure for.
Fine exposure if the building neither reduces nor pays
$1,000/day
The rate for this size tier. Enter your reported emissions to see whether it applies. Failing to report is a separate $300/day.
A compliance estimate, not legal or tax advice. BERDO offers flexibility measures — blended standards, building portfolios, individual compliance schedules and hardship compliance plans — that change a building's limits or timeline, and the Review Board may reduce or waive a penalty at its discretion. None of that is modelled here. No penalty is assessed until 30 days after a notice of violation, and correcting within that window avoids it.
The payment and the fine are different things. An Alternative Compliance Payment of $234per metric ton is a compliance mechanism, paid into the city's Equitable Emissions Investment Fund. Fines are charged per day, tiered by building size, and only reach a building that is out of compliance. Inaccurate reporting found at third-party verification carries a separate $1,000–$5,000 fine.
Sources, verified August 4, 2026. Emissions standards are Table 1 of the BERDO ordinance; the $234/tCO₂e payment is ordinance §(m)(d) and the city's own emissions-compliance fact sheet; the daily fine schedule is ordinance §(r), restated in the regulations adopted May 13, 2026. Ordinance · Emissions compliance fact sheet · City BERDO page
Table 1 of the ordinance, in kgCO₂e per square foot per year. Multiply your building’s standard by its gross floor area to get the metric tons it is allowed. Uses with higher average energy use start higher, but every one of them reaches zero in 2050. Boston publishes this table as an image; it is transcribed here in full.
| Building use | 2025–2029 | 2030–2034 | 2035–2039 | 2040–2044 | 2045–2049 | 2050 and after |
|---|---|---|---|---|---|---|
| Assembly | 7.8 | 4.6 | 3.3 | 2.1 | 1.1 | 0.0 |
| College / University | 10.2 | 5.3 | 3.8 | 2.5 | 1.2 | 0.0 |
| Education | 3.9 | 2.4 | 1.8 | 1.2 | 0.6 | 0.0 |
| Food Sales & Service | 17.4 | 10.9 | 8.0 | 5.4 | 2.7 | 0.0 |
| Healthcare | 15.4 | 10.0 | 7.4 | 4.9 | 2.4 | 0.0 |
| Lodging | 5.8 | 3.7 | 2.7 | 1.8 | 0.9 | 0.0 |
| Manufacturing / Industrial | 23.9 | 15.3 | 10.9 | 6.7 | 3.2 | 0.0 |
| Multifamily housing | 4.1 | 2.4 | 1.8 | 1.1 | 0.6 | 0.0 |
| Office | 5.3 | 3.2 | 2.4 | 1.6 | 0.8 | 0.0 |
| Retail | 7.1 | 3.4 | 2.4 | 1.5 | 0.7 | 0.0 |
| Services | 7.5 | 4.5 | 3.3 | 2.2 | 1.1 | 0.0 |
| Storage | 5.4 | 2.8 | 1.8 | 1.0 | 0.4 | 0.0 |
| Technology / Science | 19.2 | 11.1 | 7.8 | 5.1 | 2.5 | 0.0 |
Non-residential buildings of 35,000 gross sq ft or more, and residential buildings of 35 or more units (or 35,000 gross sq ft), have been measured against a standard since 2025. Buildings of 20,000–34,999 gross sq ft, and residential buildings of 15–34 units, report now and are first measured on their calendar-year 2030 emissions. A building with more than one primary use may apply for a blended standard, where a use qualifies as primary at 10% of floor area or 10% of annual energy use or emissions.
Covered owners report annual energy and water use through ENERGY STAR Portfolio Manager and complete the BERDO Reporting Form. The standing deadline is May 15; the Review Board extended the 2026 deadline to August 15, 2026. Third-party verification by a qualified energy professional is required for your first reporting year, your first emissions compliance year, and every five years thereafter. Owners may deduct energy used by emergency backup generation and EV supply equipment from the total subject to the standard.
Verified August 4, 2026 against the City of Boston’s published BERDO ordinance , its emissions-compliance guidance and the regulations adopted May 13, 2026 .
The city names three compliance mechanisms. They are not equivalent: only one of them lowers the operating bill at the same time, and only one of them stops working the moment you stop paying.
The city calls this the most impactful approach: high-efficiency electric appliances, replacing fossil-fuel heating and cooling with electricity, insulation, window seals, LED lighting. It is the only option that lowers the operating bill at the same time as the reported intensity.
Where solar sits: Electrification moves load onto the meter. Pairing it with on-site generation is what keeps the electricity bill from absorbing the savings.
Renewable energy can only be used to reduce emissions from electricity. Eligible routes are Boston Community Choice Electricity Green 100 (commercial and industrial accounts capped at 1.5 million kWh/yr), solar generated on site or anywhere in Boston, MA Class I RECs, and power purchase agreements that meet BERDO’s specific requirements.
Where solar sits: On-site solar is the only one of these that also cuts the electricity bill. Net-metering credits from a project outside Boston have extra eligibility conditions if the MA Class I RECs are not retired.
An Alternative Compliance Payment of $234 for every metric ton of CO₂e a building is above its limit, paid into the Equitable Emissions Investment Fund and made annually. It is a compliance mechanism, not a fine — a building that pays is compliant.
Where solar sits: This is the number every abatement measure competes against: any measure that removes a ton for less than $234, recurring, is cheaper than the payment.
Where none of the three works on a building’s capital timeline, BERDO offers voluntary flexibility measures that adjust a building’s limits or its reduction timeline: blended emissions standards, building portfolios, individual compliance schedules and hardship compliance schedules. All have eligibility criteria and most require BERDO Review Board approval. They change the target, not the physics — the abatement still has to happen, just on a different schedule.
BERDO applies uniformly at 20,000 gross square feet, or 15 residential units. The decarbonization economics are not uniform at all — here is how the major Boston categories break down, with each one’s actual standard for the current period and the step-down that follows it.
BERDO use: Office · 5.3kgCO₂e/sf now → 3.2from 2030 → 0 in 2050
Emissions profile: Moderate electrical load, large roof area on low-rise stock, natural gas heating common in older inventory.
Solar + stack fit: Rooftop PV plus heat pump retrofit pairs well; tenant allocation via green lease clauses.
BERDO use: Retail · 7.1kgCO₂e/sf now → 3.4from 2030 → 0 in 2050
Emissions profile: High refrigeration and HVAC load, extended operating hours, sizeable gas use in food service. Food Sales & Service carries its own, much higher standard.
Solar + stack fit: Rooftop PV with battery to shave demand peaks; strong candidate for combined §48E and SMART 3.0.
BERDO use: Multifamily housing · 4.1kgCO₂e/sf now → 2.4from 2030 → 0 in 2050
Emissions profile: Common-area electric plus Scope 1 heating from gas boilers and central domestic hot water.
Solar + stack fit: Solar feeding common load, virtual net metering allocation to tenants, heat pump boiler replacement at end of life.
BERDO use: Manufacturing / Industrial · 23.9kgCO₂e/sf now → 15.3from 2030 → 0 in 2050
Emissions profile: Highest allowed intensity of any use, and usually the highest absolute emissions: process loads, compressors, cold storage, 24/7 operation.
Solar + stack fit: Large roof area and strong rooftop PV economics; battery peak shaving against demand charges.
BERDO use: Technology / Science · 19.2kgCO₂e/sf now → 11.1from 2030 → 0 in 2050
Emissions profile: Once-through air changes and process loads put labs among the most energy-intensive uses in the city.
Solar + stack fit: Roof area rarely covers lab load on its own — solar plus off-site renewable procurement plus electrification, planned across capital cycles.
BERDO use: Healthcare · 15.4kgCO₂e/sf now → 10from 2030 → 0 in 2050
Emissions profile: Steam plants, chillers, mission-critical loads, slow capital cycles.
Solar + stack fit: Tax-exempt operators use Section 6417 direct pay to take §48E as a cash refund; PPA and third-party ownership also common.
Compliance is not a purchase — it is a project. Most Boston BERDO projects run 9–15 months from kickoff to permission to operate. Each step below has a specific output, a responsible party, and a downstream dependency.
Step 01
2–4 weeks
Owner: Building owner + energy auditor
Pull the current ENERGY STAR Portfolio Manager export, reconcile meter data against the BERDO reporting year, and establish kgCO₂e per square foot. That intensity is the number every compliance decision below is measured against.
Output: GHG intensity report (kgCO₂e/sf/yr) + gap to the applicable standard.
Step 02
1–3 weeks
Owner: Sustainability consultant + NuWatt engineering
Model the building against all six standards for its use — 2025–2029, 2030–2034, 2035–2039, 2040–2044, 2045–2049 and the 2050 net-zero column. Identify which periods the building already meets and which need intervention, so capital is neither spent too early nor short of the next step-down.
Output: Period-by-period compliance roadmap through 2050.
Step 03
3–6 weeks
Owner: NuWatt commercial engineering
Design the integrated package: rooftop PV, battery storage, HVAC electrification, envelope improvements, controls. Rank measures by $/ton abated against the $234/tCO₂e payment they displace. Many Boston buildings clear the current-period standard on solar plus partial electrification.
Output: Scoped SoW + layered NPV for each measure.
Step 04
2–8 weeks
Owner: CFO / building owner + lender
Choose the capital structure: cash with §48E ITC + MACRS, commercial loan, PPA / third-party ownership (developer claims §48E), §6417 direct pay for tax-exempt entities, or C-PACE (subject to program availability and current terms). Each has different effects on the balance sheet and the tenant rent pass-through.
Output: Signed financing commitment or PPA LOI.
Step 05
8–16 weeks
Owner: NuWatt + Boston Inspectional Services + Eversource
Boston Inspectional Services Department permits, utility interconnection application with Eversource, structural engineering review, and where applicable SMART 3.0 program enrollment. This is the critical-path step for placing a new system in service before the §48E December 31, 2027 deadline.
Output: Issued permits + signed interconnection agreement.
Step 06
6–16 weeks
Owner: NuWatt install + EPC crew
Mobilization, procurement, racking and module install, battery enclosure, heat pump equipment set, controls integration, utility witness test, permission to operate (PTO). Most Boston CRE rooftop systems at 250–1,000 kW land in this window.
Output: PTO letter + commissioning test reports.
Step 07
Ongoing
Owner: Building owner + service partner
Post-PTO, the building reports actual energy, water and GHG data annually to the Boston Environment Department through ENERGY STAR Portfolio Manager, with third-party verification in the required years. NuWatt does not proactively monitor for faults — owners typically use their Enphase or SolarEdge portal and flag issues.
Output: Compliant BERDO annual submission.
Most Boston BERDO projects combine three to five of the layers below. The right combination depends on the owner’s tax posture, whether the entity is taxable or tax-exempt, and the building’s capital cycle. For the Section 48E adder mechanics (base, domestic content, energy community, low-income), see the Section 48E 2026 guide.
Mechanic: 30% base + 10% domestic content + 10% energy community (plus 10–20% low-income adder in qualifying tracts). Commercial / third-party owned.
For BERDO buildings: The single largest dollar lever. Transfers to any cash taxpayer — even a CRE owner without the appetite to use the credit directly.
New starts placed in service by Dec 31, 2027 (begin-construction safe harbor closed July 4, 2026)
Mechanic: Commercial solar and storage depreciate over 5 years (half-year convention) plus 100% first-year bonus depreciation (permanent under OBBBA). ITC reduces depreciable basis by 50% of credit.
For BERDO buildings: Compounds with §48E. On a fully-taxpaying C-corp, combined ITC + MACRS typically offsets 50–55% of gross project cost.
Active; 100% bonus is permanent
Mechanic: Standalone and solar-coupled battery storage qualify for the same ITC and bonus adders as solar.
For BERDO buildings: Critical for BERDO buildings with high demand charges and for buildings electrifying heating — storage smooths peaks added by heat pump load.
Same construction-start deadline as solar
Mechanic: Tax-exempt entities (municipal buildings, houses of worship, nonprofit hospitals, public housing) receive §48E as a cash refund instead of a credit against tax liability.
For BERDO buildings: Unlocks §48E economics for BPS, BPDA-owned stock, churches, and nonprofit-owned buildings that would otherwise have no way to monetize the credit.
Same construction-start deadline as §48E
Mechanic: Declining-block production incentive for systems under 5 MW across Eversource and National Grid territory. Paid per kWh generated for 10 years.
For BERDO buildings: Stacks with §48E. Block size and compensation rate depend on project category — confirm current block availability before sizing the system.
Program is active; block capacity finite
Mechanic: MassCEC administers various commercial clean energy grants and technical assistance programs for Massachusetts buildings.
For BERDO buildings: Program availability rotates. Check current MassCEC calls for proposals for solar, storage, and electrification grants at time of design.
Program-specific
Mechanic: Commercial Property Assessed Clean Energy financing repaid via property tax assessment. Long tenors; no balloon.
For BERDO buildings: C-PACE is authorized in Massachusetts through MassDevelopment. Municipal opt-in and program terms change — confirm current enrollment status and underwriting terms for your Boston property before relying on it.
Subject to program availability
On C-PACE and program availability
C-PACE financing is authorized in Massachusetts through MassDevelopment, but municipal program terms, underwriting standards, and fee structures do change. Before relying on C-PACE for a specific Boston property, confirm current program enrollment status, eligible measures, and financing terms with MassDevelopment. The same caveat applies to MassCEC grant programs — calls for proposals rotate throughout the year.
Modelled scenarios, not NuWatt customer buildings. The reported intensity in each row is a scenario input; everything to the right of it is computed from the ordinance’s own Table 1 standard for that use, the $234/tCO₂e payment, and the fine schedule for that size tier. Put your own numbers into the calculator above for a building-specific version.
| Building | Scenario intensity | Allowed now | Over by | ACP / yr | Fine exposure / yr | Same building from 2030 |
|---|---|---|---|---|---|---|
50,000 sq ft Small office | 8 kgCO₂e/sf 400 tCO₂e/yr | 265 tCO₂e at 5.3 kgCO₂e/sf | 135 tCO₂e | $31,590 | up to $365,000 | 240 tCO₂e over — $56,160/yr standard drops to 3.2 kgCO₂e/sf |
200,000 sq ft Mid-size office | 9 kgCO₂e/sf 1,800 tCO₂e/yr | 1,060 tCO₂e at 5.3 kgCO₂e/sf | 740 tCO₂e | $173,160 | up to $365,000 | 1,160 tCO₂e over — $271,440/yr standard drops to 3.2 kgCO₂e/sf |
500,000 sq ft Industrial / warehouse | 30 kgCO₂e/sf 15,000 tCO₂e/yr | 11,950 tCO₂e at 23.9 kgCO₂e/sf | 3,050 tCO₂e | $713,700 | up to $365,000 | 7,350 tCO₂e over — $1,719,900/yr standard drops to 15.3 kgCO₂e/sf |
Fine exposure is the arithmetic maximum — the daily rate for that size tier across a full uncured year. In practice no penalty is assessed until 30 days after a notice of violation, correcting inside that window avoids it, and the Review Board may reduce or waive penalties. The column is here because it is the number that makes the $234 payment look cheap, and both make abatement look cheaper still.
BERDO has a long runway — the next step-down is in 2030 and 2050 is twenty-four years out. Section 48E did not vanish on July 4, 2026: that date was the begin-construction safe harbor, and it has closed. A project that began construction on or before July 4, 2026 locked in the full §48E timing pathway, with placement in service available through roughly 2030. A project starting now still qualifies for the 30% base ITC, but generally must be placed in service by December 31, 2027— a tighter, riskier window on a multi-quarter Boston commercial build. That placed-in-service clock is now the constraint that belongs on your critical path.
The begin-construction test
Section 48E satisfies “begin construction” via either (a) physical work of a significant nature, or (b) the 5% safe harbor — incurring at least 5% of total project cost, incurred on or before July 4, 2026. Module and racking procurement typically met the 5% test for Boston rooftop projects.
Working backwards from December 31, 2027: Boston permitting and interconnection typically run 8–16 weeks, and construction adds several more. To place a new system in service before the December 31, 2027 deadline, design and financing should be underway well ahead of it, with permitting and procurement sequenced to leave a construction buffer.
The 30% §48E base on a $1M project — about $300,000 of tax value. Beginning construction after July 4, 2026 still earns that base, plus stacked bonuses (domestic content, energy community) worth another $100,000–$200,000. The catch is timing: the system generally must be placed in service by December 31, 2027, which compresses permitting, interconnection, and install into a single tight window.
A Boston project that began construction on or before July 4, 2026 locked in the full timing pathway — placement in service available through roughly 2030 — and captures §48E at 30–50%, MACRS 5-year depreciation, and where applicable SMART 3.0 production incentives. Combined, these typically offset 50–60% of gross project cost for a fully taxpaying owner.
A modelled scenario, not a NuWatt customer project. The building and its reported intensity are the assumption; every standard, gap and dollar below is computed from the ordinance. The purpose is to show how the buyer journey, the financing stack and the §48E deadline interlock on a real Boston commercial timeline.
Building
100,000 sq ft Class B office
Reported intensity (assumed)
9 kgCO₂e/sf
Over the 2025–2029 standard by
370 tCO₂e/yr
ACP if it does nothing else
$86,580/yr
Month 0
Baseline
100,000 sq ft Class B office in the Seaport / Financial District submarket, reporting 9 kgCO₂e/sf — about 900 tCO₂e a year. The Office standard for 2025–2029 is 5.3 kgCO₂e/sf, which allows 530 tCO₂e, so the building is 370 tCO₂e over.
Month 1–2
Target modeling
Consultant and NuWatt engineering price the gap: $86,580 a year in Alternative Compliance Payments today, against a fine exposure of up to $365,000 for a full uncured year if the owner neither reduces nor pays. Modeling forward, the 2035–2039 standard of 2.4 kgCO₂e/sf allows only 240 tCO₂e — solar alone will not carry the building that far.
Month 3–4
Solution stack
Designed: ≈350 kW rooftop PV + 250 kWh battery + phased heat pump rooftop unit (RTU) replacement over two capital cycles. Every measure is ranked against the $234/tCO₂e payment it displaces, so the marginal dollar goes where it abates most.
Month 4–5
Financing decision
Owner models three paths: (a) cash with §48E + MACRS, (b) commercial loan, (c) third-party PPA where the developer claims §48E. Owner selects the cash path to capture the full ITC and accelerated depreciation directly.
Month 6–9
Permit + interconnection
Boston ISD permits filed; Eversource interconnection application submitted with System Impact Study. Structural engineering confirms the roof can support the array without reinforcement. With the §48E begin-construction safe harbor closed July 4, 2026, new starts target the December 31, 2027 placed-in-service deadline.
Month 10–13
Construction + PTO
Mobilization, install, commissioning, utility witness test, permission to operate. System energized and producing.
Year 1 onward
BERDO M&V
The first full-year ENERGY STAR Portfolio Manager submission shows the reduced intensity, with third-party verification in the required year. The owner banks compliance margin while planning the Phase 2 heat pump retrofit against the next step-down.
Scenario assumptions
Value streams
Dollar outcomes depend on system design, the current SMART block, owner tax posture and interconnection outcome, so no total is asserted here. Request a building-specific assessment for actual numbers.
If your portfolio crosses the Charles, the rules change. Cambridge’s Building Energy Use Disclosure Ordinance — passed in 2014 and amended in 2023 — is a separate ordinance with its own thresholds, timeline and reporting platform. BERDO compliance does not carry over.
Residential properties of 50 or more units report annually but carry no reduction requirement at present. Reporting is through ENERGY STAR Portfolio Manager by May 1 each year, and the default baseline for existing buildings is 2018–2019. Cambridge sets its alternative compliance payment and penalty amounts by regulation rather than in the ordinance text, so we do not quote figures for them here — check the city’s own page before budgeting against either.
City of Cambridge BEUDO pageVerified August 4, 2026 against cambridgema.gov. NuWatt installs commercial solar across the Boston metro including Cambridge; BEUDO strategy work is scoped separately from BERDO because the compliance mathematics are not the same.
The Massachusetts programs that stack with §48E on a BERDO project, and the national guides behind the financing stack above.
State guide
SMART 3.0, commercial net metering, pricing and interconnection across Eversource and National Grid territory.
Read the guideCompliance market
How Massachusetts RPS Class I compliance drives commercial solar revenue, stacked alongside SMART 3.0.
Read the guideCode overlay
How the Massachusetts Stretch Code and Specialized Opt-In Code interact with BERDO targets on new construction and major retrofits.
Read the guideThere is no per-ton penalty in BERDO, and pages that quote one are conflating two different numbers. What BERDO has is (1) an Alternative Compliance Payment of $234 per metric ton of CO₂e above a building’s limit — which the city is explicit is a compliance mechanism, not a fine, and (2) fines assessed per DAY and tiered by building size: $1,000 a day for failing an emissions standard at a non-residential building of 35,000 gross sq ft or more (or a residential building of 35+ units), and $300 a day for the 20,000–34,999 sq ft / 15–34 unit tier. Failing to report is a separate $300/day or $150/day, and inaccurate reporting found at third-party verification carries a $1,000–$5,000 fine. No penalty is assessed until 30 days after a notice of violation, and correcting inside that window avoids it.
Our commercial team will model your building's gap to its emissions standard, design a PV + battery + electrification stack against the $234/tCO₂e payment it displaces, and sequence the build so a new system is placed in service before the §48E December 31, 2027 deadline.