Voluntary performance goals and results

IBM maintains goals covering the range of its environmental programs including climate protection, energy and water conservation, pollution prevention, waste management and product stewardship. The goals included below were those in effect during 2020. For more details, please see our latest annual environmental report.


IBM's 2020 Voluntary Environmental Performance Goals and Results


Energy and climate change 2016 2017 2018 2019 2020
Energy conservation as % of total energy use (goal 3%) 4.8 3.6 3.3 3.2 3.5
IBM total energy consumption in megawatt-hours 4,912,714 4,845,695 4,666,514 4,455,805* 4,118,636
Renewable electricity procurement as % of total electricity consumption (goal 55% by 2025) 37.0 39.0 37.9 47.5* 59.3
CO2 emissions reduction as % of 2005 baseline CO2 emissions (goal 40% by 2025) 29.2 30.1 32.2 39.7 56.6
IBM total operational CO2 emissions in metric tons 1,436,464 1,417,985 1,375,027 1,222,623* 880,188
Note: Energy and emissions goals and reporting cover all activities taking place in IBM-owned or leased facilities. These facilities include co-location data centers. Renewable electricity procurement includes contracted purchases and renewable electricity which automatically comes to IBM via routine grid power. CO2 emissions reduction data is adjusted for acquisitions and divestitures.

*2019 data has been adjusted to correct a calculation error in figures reported in our 2019 IBM and the Environment Report.


Water conservation 2016 2017 2018 2019 2020
% annual reduction in water withdrawals at data centers and other large IBM locations in water-stressed regions (goal year-to-year reduction) 6.6 2.9 0.4 2.0 6.7


Nonhazardous waste recycling 2016 2017 2018 2019 2020
% by weight sent for reuse, recycling or recovery (goal 75%) 86.3 87.8 89.5 86.4* 83.8
*2019 data has been adjusted to correct a calculation error in the figure reported in our 2019 IBM and the Environment Report.


Product reuse and recycling 2016 2017 2018 2019 2020
% by weight of total IT product waste sent by IBM's product end-of-life operations to landfill or incineration for treatment (goal not to exceed a combined 3% by weight) 0.6 0.7 0.7 0.8 0.5

Product energy efficiency

The IBM z15™ improves computing power delivered for each kilowatt-hour of electricity consumed by 31% versus the IBM z14®.

IBM's next-generation Power 10 processor, announced in August 2020, is expected to deliver up to a 3x improvement in energy efficiency as compared to the IBM POWER9™ processor. We plan to roll out our first systems with these processors in the second half of 2021.