This chart illustrates how Brown is planning to achieve its goal of carbon neutrality by 2040. Brown is currently working to verify its FY2025 greenhouse gas numbers to assure the University achieve its most recent  greenhouse gas reduction goal - a 75% reduction below FY2018 levels by FY2025. The red dots indicate actual values and the black dots are projected values. The numbers below include renewable energy credits (RECs) and carbon offsets where applicable. 

Chart Summary: Brown University's scope 1 and scope 2 greenhouse gas emissions were 52,136 MTCO2e in the baseline year of FY2018. By FY2025, the emissions level dropped to 13,056 MTCO2e, resulting in a 75% reduction. 

This bar chart shows Brown’s total scope 1 and scope 2 greenhouse gas emissions. Use the dropdown filter to toggle between annual or monthly views, color the bars by different measures of interest, and see the impact that Brown’s energy efficiency work, renewable energy credits (RECs), and carbon offsets have had on campus emission levels. Verification is in progress for FY2025 and those numbers are subject to change. 

Chart summary: Brown's scope 1 and 2 greenhouse gas emissions declined 75% between FY2018 and FY2025. In FY2025, Renewable Energy Credits (RECs) neutralized 100% of the University's electric emissions, and carbon offsets neutralized approximately half of emissions from natural gas consumption, resulting in 13,056 MTCO2e of residual emissions — the majority of which stem from natural gas.

In 2023, the Dry Bridge solar array was switched on. Dry Bridge is a 50-megawatt (DC) solar facility in a former gravel pit in North Kingstown, R.I. This visual tracks the mega-watt hours (MWh) produced by this array. The renewable power flows into the electric grid, and Brown University receives 1 Renewable Energy Credit (REC) for each MWh of production. Dry Bridge is among the largest solar arrays in Rhode Island. 
_{Please note that the official number of RECs the University receives from Dry Bridge may vary slightly from the numbers shown below since they rely on different meters.} 

Chart summary: The renewable power produced by the Dry Bridge solar array dips to lows around 1,000 MWh in the darkest winter months, and surges to highs near 8,0000 MWh in the sunny summer months. The mean monthly production in FY2025 was 5,498 MWh.  

The following visual shows a more zoomed in view of Dry Bridge renewable power production. It shows the kilowatt (kw) production rate for 15-minute intervals from 3 days ago through today. Today's values will update approximately every 15 minutes. 

Chart summary: The profile of the renewable power produced each day by the Dry Bridge solar array resembles a bell curve. Power (kW) starts gradually in the early morning and ramps up to highs in the afternoons, before tapering off in the evenings. The power produced varies considerably day-to-day depending on weather conditions.   

This chart shows how much renewable electricity the ‘Mesquite Star’ wind farm in Texas is generating on behalf of Brown University. Brown receives 1 REC, or renewable energy credit, for every megawatt hour produced by the wind farm. This project is the University's first power purchase agreement, and more are planned for the near future.

Chart summary: The Mesquite Star wind farm in Texas tends to produce more renewable power in the winter and spring months, with monthly highs between 2,300 and 2,900 MWh in the windiest months of the year. Annually the facility  produces between 21,500 MWh and 25,000 MWh of renewable power each fiscal year. 

Below are different plots of "degree days", which is a measure of weather similar to average daily temperature. These data are sourced from the T.F. Green airport weather station via degreedays.net (KPVD, base 65). In order to assess building energy efficiency, Brown's engineers must consider weather severity when they interpret nominal utility usage.

Chart summary: Each line traces the running total of degree days across a fiscal year (July - June) - cooling degree days rise steeply in summer then plateau through winter. Heating degree days stay near zero until they rise sharply in November and level off in May. FY2026 is showing the highest level of heating degree days, suggesting a colder winter than recent years (going back to FY2018). 

This visual shows the utility usage for two data centers at Brown:

• The CIT data center, and
• The 180 George data center

The usage shown for the CIT data center includes two floors and OSCAR, the Ocean State Center for Advanced Resources. OSCAR is a high performance computing cluster maintained and supported by Brown's Center for Computation and Visualization (CCV). Data Centers, especially ones like OSCAR that support the training of complex computations, are important to monitor due to the amounts of energy they demand.