Sustainability in numbers

Facebook is committed to minimizing the impact of our energy, emissions and water usage —and we’re using robust sustainability data to do it.
Tracking and minimizing impact for millions of square feet across the globe

We’re scaling positive impact by tracking metrics that matter. By employing a data-driven approach, we’re able to identify and build on our most impactful programs and highlight new places to drive efficiency. We’re tracking key performance indicators to give us detailed insight into our carbon footprint and our energy and water use.

Download our energy, GHG, and water data 


Increasing our use of renewable energy sources to 100% in 2020.

We’re working aggressively to support our facilities with 100% renewable energy in 2020. Facebook has contracted for over 5.0 gigawatts of renewable energy, making us one of the largest corporate purchasers of renewable energy in the world. In 2019, we achieved 86% renewable energy, and are on track to meet our goal in 2020.


Renewable energy made up over 86% of our overall electricity mix in 2019. We have steadily increased our renewable energy since 2013 on our pathway to 100% in 2020

Using Power Usage Effectiveness (PUE) to measure how efficiently our data centers convert energy into compute power.

PUE is how we measure the operating efficiency of our data centers. We compare the total amount of power we source from our utility with the power used to run the hardware within the data center. The “ideal” PUE is 1.0, meaning that every electron entering the site is used to power the hardware inside the data center. The industry average PUE is 1.5, and we’re proud that our facilities have averaged 1.11 or below for the last five years. We still continue to look for additional ways to get even closer to 1.0.

Annual Data Center Power Usage Effectiveness (PUE)

Continuous optimizations are keeping our PUE well below the industry average

Chart showing Power Usage Effectiveness over time

Greenhouse Gas Emissions

Setting a science-based target to reduce our emissions by 75%.

As part of our commitment to fight climate change, we've set a science-based target to reduce our operational (Scope 1 + 2) greenhouse gas emissions 75% in 2020 from 2017 levels. We've made great progress towards that target - in 2019, our emissions were 59% less than in 2017, despite growth in our business. We’re minimizing our carbon footprint by driving operating efficiencies across our facilities and sourcing 100% renewable energy for our operations.


Facebook’s annual emissions for the average person on the platform are less than the carbon impact of making one cup of black coffee.

Chart showing GHG emissions and GHG emissions intensity over time

Fighting climate change to make a positive global impact.

In addition to reducing our direct emissions and procuring 100% renewable electricity, we're thinking about how to have a positive impact on climate change through our supply chain and broader engagement. We've analyzed our value chain footprint to prioritize efforts to mitigate emissions from activities like business travel and impacts from materials in our buildings and hardware.


Leading with data centers that are 80% more water efficient than average.

Our data centers are among the most water-efficient in the world. We’ve optimized our water use to achieve exceptional efficiency, but we’re also making sure that we get more out every drop we use.


We use water to keep our data centers cool and to keep our offices running smoothly.

Chart showing water withdrawal and intensity over time

Transparent about our water data and always looking for the best ways to communicate our impact.

We’ve measured our water withdrawal for years but recently we’ve started reporting our consumption too. Water withdrawal as a metric tells us how much water we purchase for our operations, but a large amount of that water is returned to local wastewater treatment plants and can be used again further downstream. Water consumption tells us what we actually evaporate in our operations and gives us a better idea of our true impact.

Measuring how efficiently our data centers use water

Water Usage Effectiveness (WUE) is a water efficiency metric that compares the amount of water we use to the amount of energy that’s used by our hardware. We’ve consistently kept our WUE stable—and extremely low—since we began tracking and reporting the metric in 2012. We’re also proud that we were the first to report this metric publicly and are still one of the few companies to share it.

Water usage effectiveness (WUE)

Our data centers use 80% less water than typical data centers.

Chart showing water usage effectiveness

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