Post Archive by Year

Below you'll find a list of all posts from 2019

ENERGY STAR Score Revisions are Complete and Certification Reopens for Commercial Buildings
02 Aug ccayten News

Since September of last year, the EPA has been going through a review period of the ENERGY STAR scoring methodology that was updated back in August 2018 for commercial buildings. The review period consisted of three phases: gathering feedback, analyzing the models and evaluating the updated score changes on buildings benchmarked within ENERGY STAR, and during this time ENERGY STAR Label applications were not accepted. The EPA has completed its review period and has re-adjusted the scoring methodology to better account for heating energy use.  The new scoring model went live in ENERGY STAR on July 22nd and buildings in colder climates may see a score increase. No buildings should experience decreases in score as part of this scoring adjustment.

On July 31st, the EPA also reinstated ENERGY STAR Label certification for office buildings, and eligible buildings will be able to apply for 2018 (if not already) and 2019 Labels by December 31st, 2019. Buildings will need to have an ENERGY STAR score of 75 or above to apply for certification. 

Contact CodeGreen's benchmarking team if you’re building has achieved an ENERGY STAR Score of 75 or above and you are interested in applying for certification from the EPA.  If your building is below 75, contact us so we can help you improve the energy performance of your building and lift your ENERGY STAR Score.

CodeGreen has benchmarked over 300 million square feet of property in ENERGY STAR Portfolio Manager and is a proud 3 time winner of the ENERGY STAR Partner of the Year award.

NYC Carbon Emissions Bill Passed into Law - "Local Law 97" - What it means for commercial building owners
20 May ccayten News

As you have probably seen in the news, New York City Council passed their own “Green New Deal” in late April that includes a number of environmentally-focused initiatives. The piece of the “deal” that impacts building owners most directly, Intro 1253, is a complex law that creates carbon emissions limits for most buildings over 25,000 square feet and alternative compliance paths for certain types of buildings.

On May 18th Intro 1253 was passed into law as Local Law 97 of 2019.

This law, the most ambitious in the world to tackle emissions from existing buildings, impacts over 57,000 buildings across the city with the goal of reducing building-based emissions 40% by 2030 from a 2005 baseline.

What does it require and when?

Local Law 97 sets detailed requirements for two initial compliance periods: 2024-2029 and 2030-2034 and requires the City to clarify the requirements for future periods through 2050. Buildings over 25,000 gross square feet must meet annual whole-building carbon intensity limits during each compliance period based on building type or prorated for mixed-use buildings. Certain building types including city-owned buildings, affordable housing, hospitals and houses of worship will have alternative compliance options if they cannot hit the carbon intensity limits. To comply, building owners must submit an emissions intensity report stamped by a registered design professional every year starting in 2025 or pay substantial fines.

Carbon emissions intensity limits by building/space type

What happens if I don’t comply?

The City has set steep fines for buildings that do not comply. Buildings must pay $268 per metric ton that their carbon footprint exceeds the limit, annually.  There are also fines for not submitting a report and for submitting a false report.

How does my building emit carbon?

At first glance many may ask how does a building even emit carbon dioxide? I have been asked if we need to bring some “carbon meter” to the building to measure carbon emissions.  As most of you know, that is not how building-based carbon emissions are measured.

Carbon emissions, or the “carbon footprint” of a building is measured by totaling the carbon dioxide emitted into the atmosphere during the production of the energy that is consumed by a building to heat, cool, light and power the activities of its occupants.  These emissions are typically the result of fuel combustion and can occur onsite as a result of an oil or gas boiler or offsite like at a power plant that burns natural gas to generate electricity. The carbon emissions intensity limits set by Local Law 97 include onsite and offsite emissions in a single limit so reductions in lighting, heating, cooling and plug loads all contribute to reaching the goals. 

How do I measure my building’s carbon intensity and know if it’s in compliance?

This is actually more complicated than you would think.  The US EPA’s free Energy Star Portfolio Manager tool is a good place to start.  All buildings over 25,000 square feet should have submitted their Energy Star Benchmarking data to the City by May 1, 2019 for Local Law 84 compliance. Energy Star Portfolio Manager, the tool required by the City for building owners to store and submit energy data for LL84, is able to convert a building’s energy use into carbon emissions.  However, it should be noted that the emissions displayed in Energy Star is slightly different from how it will be measured by Local Law 97, but it is a good starting place to see how your building compares to the 2024 and 2030 limits. Just make sure you are using the same units. Energy Star typically displays emissions in kilograms of carbon dioxide equivalent (KgCO2e) and the law lists the limits in metric tons of carbon dioxide equivalent (mtCO2e).

Once you’ve found your total carbon emissions in Portfolio Manager, you’ll need to calculate your carbon emissions limit to find out if you comply or not. To calculate your emissions limit, find your type of building in the table above and multiply the limit by the gross square footage of your building. This is the carbon emissions limit for each compliance period. If your total is higher than the limit, you are not in compliance. To calculate your annual fine, first convert your building’s carbon footprint from Kg to metric tons by dividing by 1,000, then multiply the difference between the limit and your actual carbon footprint by $268.  If this sounds too complicated, call an expert like CodeGreen for help.  

How does this impact a typical commercial building?

The 2024 and 2030 emissions intensity limits were set to impact the worst 20% and worst 75% of carbon emitters respectively, so statistically, an average building will meet the initial 2024 requirements, but will need to reduce emissions to meet the more stringent 2030 limits.  But that doesn’t mean that building owners can sit back and do nothing for ten years.  Identifying and implementing energy upgrades is a multi-year process, and even if you plan to sell the building before 2030, buyers will start to bake in the costs associated with meeting the emissions limits, so building owners should start planning for compliance now.

How do I reduce my carbon emissions and prepare for compliance?

While there are still a number of details to be worked out within the law, all buildings should start developing long-term energy and carbon reduction strategies today to meet or exceed the emissions performance targets.  This process takes time and to be successful, requires input from numerous stakeholders including internal and external experts, tenants, building operations, ownership and management. 

A proper energy and carbon management plan should evaluate all potential energy and carbon reduction initiatives in the near-, medium-, and long-term:

• Base building HVAC

• Common area lighting

• Sensors and controls

• Tenant lighting, plug loads and HVAC

• Retail and ground floor tenants

• Operator and occupant training

If you are completing or recently completed your Local Law 87 energy audits, that can be a good place to start. If you haven’t started Local Law 87 yet, ask your provider to consider longer term energy savings strategies in their analysis even if it expands the scope or cost of the energy audit. It’s worth it since your LL87 provider will already be analyzing your systems looking for energy saving opportunities.

What about my tenants? They represent at least 50% of my building’s energy use?

Tenant energy consumption plays a big role in overall energy use and therefore also represents a huge opportunity for savings.  Reducing your building’s overall energy and carbon intensity will not be possible without collaboration with your tenants. Meet with tenants to discuss energy efficiency when they are moving in and building out their spaces.  Also meet with existing tenants to discuss energy upgrades that can be performed mid-lease that could lower their energy bills.  NYSERDA has a great program, the Commercial Tenant Program, that will pay for some or all of the cost of identifying energy reduction opportunities in new and existing tenants spaces. CodeGreen is an approved vendor for the CTP and we’re happy to discuss providing these services to your tenants.  

It seems like there are lot of details that still need to be worked out. Should I just wait until more info is released before doing anything?

Don’t wait. Especially if you’re above the 2024 limits. Building owners should get started now, at least with developing a plan.  It is true that the City will be issuing rules and additional studies on their approach to carbon trading, peak demand, renewable energy credits and carbon offsets among other items, but none of these negate the value of reducing energy waste in your building. You don’t need to undertake massive projects right away, but you should engage a professional and start creating a long-term plan. If you have a responsible long-term energy/carbon reduction plan you will be able to fold in the various rules and adjustments as they are issued by the City, but many of these issues won’t be resolved until 2023 which is too long to wait if you need to make changes for 2024 compliance.

So get started now. Talk to your inhouse engineer or call an expert like CodeGreen to help you develop a strategic compliance plan.  

Contact us for more info on how this law will impact your portfolio

NYC LL33 Building Letter Grade Law Updated
06 May ccayten News

On April 18th, 2019 New York City Council passed the Climate Mobilization Act that included the ambitious carbon emissions limits for existing buildings (Intro 1253). This Act also included a revision to the Letter Grade Law LL33. The revision updates the Energy Star Scores associated with each letter grade. The new letter grade assignments are below.

Local Law 33 will require all buildings in NYC over 25,000sf to publicly post their letter grade annually beginning in 2020. The first letter grades will be based on the 2019 calendar year Energy Star Scores that are submitted to the DOB by May 1, 2020 and every year thereafter. Buildings that are not eligible for a score will receive an "N" and may be required to post the building Energy Use Intensity (EUI).

Contact us to find out how to improve your Energy Star Score before it's posted on your front door!

New York City passes carbon emissions bill for existing buildings. What will it mean for building owners.
19 Apr ccayten News

On April 18, 2019 New York City passed groundbreaking legislation that establishes carbon emissions limits for all buildings in New York City over 25,000 square feet.


This bill is the largest and most ambitious emissions bill for existing buildings in the world and will require buildings, which constitute 70% of New York City’s carbon footprint, to reduce emissions 40% by 2030 and 80% by 2050 from a 2005 baseline.  The city expects building owners to meet the carbon reduction goals through whole-building energy use reductions (retrofits) and switching to renewable energy sources.


Compliance with the bill will require building owners to measure their carbon emissions per square foot per year (mtCO2e/sf/yr), and meet two emissions limits based on the building's DOB occupancy class: an initial limit during 2024-2029, and a second more stringent limit during 2030-2035, or pay substantial annual fines for non-compliance. Based on the fine structure, some buildings may have annual fines of $1M or more! (An advisory group will set limits beyond 2035.)


The carbon emissions (footprint) of a building is a measure of the CO2 released into the atmosphere in order to heat, cool and power the activities in the building. Some of this emissions occurs onsite, like during consumption of oil or gas for heating and cooking, and some of this emissions occurs offsite, at the power plants that generate electricity or steam that is used by the building. The proposed bill requires that both onsite and offsite emissions be included in the building’s carbon measurement.  


So what does this all mean for you and your buildings? There are still many details that need to be worked out, but the bottom line is that building owners across the city should start planning for major energy reductions in the next 5-10 years and beyond. Complying with these limits will require a long-term holistic energy management plan, and the involvement of multiple stakeholders including building owners, operations staff, and tenants.  


You can read the full text of the bill HERE

Contact our Local Law 97 team at to learn how this bill will impact your portfolio and how to develop a strategic and cost-effective compliance plan.

CodeGreen Awarded ENERGY STAR Partner of the Year for Third Year
15 Apr ccayten News

We are excited to announce that CodeGreen has been awarded the ENERGY STAR Partner of the Year 2019, the third year in row, placing the firm in the category of Sustained Excellence alongside other leaders in the energy efficiency industry. CodeGreen’s accomplishments were recognized by the U.S. Environmental Protection Agency and the U.S. Department of Energy at a ceremony in Washington, D.C. on April 11, 2019.

We work with over 800 million square feet of property across the country to improve energy efficiency and sustainability and the ENERGY STAR program forms the foundation of this work. For building owners, understanding your energy performance relative to other similar buildings is the best way to evaluate the efficiency of your systems and the impact of your energy saving initiatives.

This year EPA highlighted the following areas that contributed to CodeGreen’s award:

● Benchmarking more than 970 individual properties in ENERGY STAR Portfolio Manager® in 2018 and performing ENERGY STAR certification for 157 buildings, including 42 percent of all office buildings certified in New York City.

● Achieving ENERGY STAR Charter Tenant recognition for their headquarters, as well as for client offices in the Empire State Building in the ENERGY STAR Tenant Space pilot.

● Performing energy audits encompassing 26 million square feet, identifying over $5.5 million dollars in energy savings in 2018.

● Communicating the value and application of ENERGY STAR tools and resources in local legislation, benchmarking, and energy efficiency initiatives and participating in 10 panels across the country and in Mexico.

Read the full press release HERE:

S&P Launches Green REIT Index
22 Mar ccayten News

In the ever-shifting world of Environmental, Social, and Governance (ESG) measurement and reporting, it can be quite difficult to know how to understand and compare the efforts undertaken by the many different players in the industry. Who’s doing what and how effective are they at making any kind of difference? How do they rate and how do they compare? The S&P Dow Jones Indices have responded to these questions by releasing a series of indices that focus specifically on ESG performance amongst Real Estate Investors and Managers.

This week the S&P Dow Jones Indices has announced its partnership with The Global Real Estate Sustainability Benchmark (GRESB) to create the U.S. Green REIT Index (DJSERUUP), among others, to measure the performance of publicly traded Real Estate securities with an Environmental, Social, and Governance focus here in the U.S. This Index will assign an ESG score to every REIT based on their GRESB score. REIT’s that have not participated in GRESB and do not have a GRESB score will receive a score of 0.

CodeGreen helps over 800 million square feet of real estate across the country improve and report ESG performance. We have worked with GRESB since it’s inception and help billions of dollars of funds respond to the survey each year. As investor focus on ESG increases, the importance of preparing accurate and complete response to surveys such as GRESB increases in lockstep. And now with a public index ranking all REIT’s based on their GRESB score, investors will have a very clear picture of how these managers are tackling ESG across their portfolios.

Whether you are new to GRESB and ESG performance or a veteran looking to push your performance even further, CodeGreen’s team of expert consultants, engineers and data scientists can help you evaluate, improve and report your ESG performance to GRESB and other ESG programs so you can focus your efforts on implementing the necessary change in your organization that moves the needle.

Either way, we’re here to support you. Give us a call!!