BESS Jeopardy

Random

100

What does co-location mean?

Solar + BESS

200

Your rack is only as good as your worst performing ______________

Cell

300

What is augmentation and when is it best to do? 

Adding additional battery capacity or replacing old battery cells to maintain or enhance the overall performance and storage capacity of a battery energy storage system (BESS) over time.

400

Energy Capacity at POI is... (MC)

A) Higher than contracted capacity

B) Lower than contracted capacity

C) = to contracted capacity

500

How much all in weight is a Narada 5 MW/4 Hr battery system? (~12,000 square feet, or .33 acres.)

A) 100,000 lbs 

B) 200,000 lbs 

C) 300,000 lbs 

D) 468,367 lbs

For Whom the BESS Tolls

100

LTSA stands for? 

Long Term Services Agreement

200

BESS tolls are typically expressed as (MC)

A) $/KW – month

B) $/KW – hour 

C) $/KW

300

Whats a common round trip efficiency % we're seeing for our Lithium Ion batteries?

85% - 87.5%

400

An ESSA defines how the energy storage system will be used and compensated, while ______ ensure performance standards are met.

SLA. 

• Availability Guarantee – Defines minimum uptime (e.g., ≥95% availability) to ensure the system is operational when needed.
• Response Time – Specifies how quickly the system must respond to dispatch signals (e.g., <1 second for frequency regulation).
• Degradation & Capacity Retention – Ensures the battery maintains a certain capacity over time (e.g., ≥90% of original capacity after 10 years).
• Round-Trip Efficiency – Guarantees energy efficiency levels to protect financial returns.
• Penalties & Remedies – Defines financial penalties, liquidated damages, or other remedies if SLAs are not met.

500

T/F - Encore plans to take on tariff risk. 

False. Trump's existing China Tariffs are likely to increase the delivered price of Chinese DC-Block (and US equivalents) by 20%+ over where we bid. Encore needs to pass tariff risk to clients.

Safety First

100

What is the following called? 

Root cause that leads to battery fires. Process where a cell or group of cells heats up beyond a limit and electrolyte becomes flammable, and begins to offgas

Thermal Runaway

200

What is deflagration?

Chemical reaction that essentially creates a bomb.

No bueno.

300

Is an onsite water tank enough to handle thermal runway?

No. Use town water, and a dry pipe system.

400

Top 3 causes of downtime / reduced capability?

1) Internet 2) Inverters 3) Thermal Management

500

The US has two major families of code. 

What are they? 

IFC (International Fire Code)

NFPA (National Fire Protection Association)

Terms!

100

NWA stands for? (MC)

A) Nodular Weight Allowance  

B) Node Warning Administrator  

C) Non Waves Access  

D) Non Wires Alternative

200

What is NWA useful for?

The procurement of grid services from new and/or existing DERs as an NWA solution could reduce the overall demand at critical periods and thereby address potential overloading due to a N-1 contingency at the substation.

300

What is Auxiliary Power?

Powering fans. Phantom power.

400

Encore example: LTSAs are negotiated with ____<counterparty name>_______ and ESSAs negotiated with __<counterparty name>________

WEG, VEC

500

The more ___________ you have, the more you can isolate bad cells

Inverters

Bill's the BESS

100

Bills favorite acronym (MC)

A) FWIW 

B) BRB 

C) FML

200

# of years experience in the energy industry (MC)

A) 15

B) 30

C) 35

D) 100

300

Where did Bill earn his Masters Degree? (MC)

A) Universitat de Barcelona

B) London Business School

C) University of Padua (Italy)

400

What is Bill's strongest color on the Insights wheel?

BLOOD RED

500

What town does Bill live in near Bennington?

Pownal