Piedmont Environmental Council Public Meeting, What a Data Center needs to be Operational

Approximately 150 people attended the recent Piedmont Environmental Council (PEC) public meeting at The Center in Charlottesville to discuss Virginia data centers. PEC operates in central Virginia supporting the following communities; Albemarle / Cville, Clarke, Culpeper, Fauquier, Greene, Loudoun, Madison, Orange, and Rappahannock. Their mission is to protect and restore the lands and waters of the Virginia Piedmont, while building stronger, more sustainable communities. Some of the jurisdictions they support are the fastest growing in the nation where data center expansion is becoming a central issue. 

What does a data center need to be operational? Below is a summary provided by PEC Land Use and Policy staff members Julie Bolthouse and Rob McGinnis.

Every data center is different and has different requirements, none are alike. Currently the PEC is the only agency that tracks the buildout of data centers and today they have identified that our state is the data center capital of the world and has 3 times more data centers than the next largest on their list, Beijing, China. 

There are some common requirements for each data center: The need for exorbitant amounts of energy and water plus backup generators to keep equipment running 24/7. Infrastructure build out including electric power substations and rows of super sized transmission lines that are a blight to the landscape and could traverse through neighborhoods. Other structures onsite are water and gas holding tanks, rooftop cooling equipment, waste water pipelines and pump stations, and security fencing. 

Electronics naturally produce heat in order to operate. Larger systems require cooling equipment to remove heat to protect computers. Each of us has experienced cell phones, tablets, and computers generating heat. We've even heard a fan running on our desk top computer to remove the heat buildup. When electric systems fail or peak demand puts pressure on the system, back up generators must kick on to protect equipment and keep the data flowing night and day. 9,000 gas diesel data center generators are currently permitted in Virginia and the allowed run time is regulated by the EPA. Most of us have heard a neighbors small generator running during a power outage but a data center can have 20 - 40 train car sized diesel generators running 6 - 12 hours a day. The greater the concentration of data centers, the worse the air pollution and the greater the health impact. Computer systems, gas plants, and nuclear facilities are water cooled. Water usage that is not recycled and reused is consumptive which means it is lost as it evaporates into the air along with pollutants. When a closed loop system is used they too will experience water loss and diverting treated / recycled water can still impact local stream health.

Just one data center can consume a city worth of power. Racks and racks and rows and rows of computers need electricity to run. One Gigawatt (GW) of power requires one nuclear reactor to produce it. In Virginia it is estimated that 28 GW of power must be built out by 2039 to meet growing data center demand and to pay for it the average customer bill will increase by 125%. That level of power is equivalent to nearly 7,000,000 homes or 2,000 Walmart Supercenters. Dominion Energy, who operates in 20 states, has 47 GW under contract in Virginia alone to meet the explosive demand load. The electricity is dependent upon the delivery from out of state transmission lines; Pennsylvania, Ohio, and West Virginia and also gas pipeline routes that continually are being expanded deeper into the South and farther into the North. A gas plant in one community can be firing up a data center in another community. There is no other industry that demands this much energy other than possibly a steel mill. Dominion energy is applying for approval to use non-renewable sources (natural gas, coal, and reactors) to power this infrastructure. The current administration encourages dirty power which is often not compatible with meeting local renewal energy targets.

Next week I will blog about the impact of a recent ordinance proposal change in Albemarle County as presented by PEC.

~ Rebecca