Tesla Motors Club

Since there's no Tesla Powerpack thread with a customer perspective out there yet, I'd propose to start it here.

Here's the information from Tesla's website about the business and utility-scale battery pack, called Tesla Powerpack.

"For utility scale systems, 100kWh battery blocks are grouped to scale from 500kWh to 10MWh+.

These systems are capable of 2hr or 4hr continuous net discharge power using grid tied bi-directional inverters.

Systems support applications including peak shaving, load shifting and demand response for commercial customers while offering, renewable firming and a variety of grid services at utility scales.

Tesla Energy for Utilities is designed to:

• Firm up renewable generation by reconciling the intermittency of power from these sources and storing excess capacity to dispatch when it’s needed.
  
• Increase resource capacity. Tesla Energy for Utilities acts as on-demand distributed power generation, contributing to the overall generating capacity while adding resiliency to the grid.
• Ramp Control. Tesla Energy for Utilities can act as a buffer while the power output from a large generation source is ramping up or down, delivering power instantly to smoothly transition output to the required level.
  
• Improve power quality by preventing fluctuations from propagating to downstream loads.
• Defer costly and time-consuming infrastructure upgrades.
• Manage peak demand by deploying power within seconds or milliseconds."

Now, Tesla has already announced utility-scale projects (e.g. with OnCor), but I'm wondering which commercial applications would be useful or if there's any commercial customers you know of, who contemplate the 100kwh Tesla Powerpack.

Edit: Here's an interesting read from Forbes on utility scale solutions:
Why Tesla Batteries Are Cheap Enough To Prevent New Power Plants - Forbes