Google GreenMartin Zlámal

A better web.Better for the environment.

Efficiency

Data Centres

Campus Operations

Renewable energy

Using Green Power

Investments

Efficiency

𝑃𝑈𝐸 =𝑇𝑂𝑇𝐴𝐿 𝐹𝐴𝐶𝐼𝐿𝐼𝑇𝑌 𝐸𝑁𝐸𝑅𝐺𝑌

𝐼𝑇 𝐸𝑄𝑈𝐼𝑃𝑀𝐸𝑁𝑇 𝐸𝑁𝐸𝑅𝐺𝑌

PUE – Power Usage Effectivenessby The Green Grid

Measure PUE

Manage airflow„It‘s important to eliminate the mixing of the hot and the cold air.“

CFD – Computational Fluid Dynamics

CRAC – Computer Room Air Conditioning unit

Adjust the thermostat„One of the simplest ways to save energy in a data center is to raise the temperature.“

80 °𝐹 ≈ 26,6 °𝐶

Use free coolingYou can see this in publicly recorded PUE data

Belgium – evaporative towers without any chillers

Finland – sea water from the Bay of Finland (without temperature gradient)

TWO EXAMPLES

Optimize power distribution

UPS – Uninterruptible Power Supply

You have to convert from AC down to DC in order to charge batteries and then you needto convert DC back to AC and again down to DC for all the components in the data center.

It‘s not necessary!

100% recycling

Since 2007, Google has enough outdated servers to avoid buying over 300,000new replacement machines.

Before Google buys new equipment and materials, they look for ways to reuse what they already have.

When Google can’t find a new use for their equipment, they completely eraseany components that store data, and then resell them into the market.

Renewable energy

Piloting new technology

1. They make good business sense

ROI – Return On Investment in a reasonable period of time

2. They have long term potential to transform the industry

Criteria for bringing new technologies on campus:

Purchasing clean energy

Google signed six contracts for over 630 MW of wind energy

Based on PPAs – Power Purchase Agreements

Iowa (114 MW), Oklahoma (100.8 MW), Northern Sweden (72 MW – underconstruction), Texas Panhandle (239.2 MW), Sweden (59 MW – not ready yet), westcentral Oklahoma (48 MW)

It‘s about 22% of Google‘senergy consumption

Thank you for your attention

ZEMINEM.CZ

@mrtnzlml