José A. Marrero SME Southern Company Generation

Lithium Ion Batteries in Stationary Application

COMPACT POWER CENTER (CPC)

COMPACT POWER CENTER (7 KW-CPC)

Development of the CPC system is the summation of several years worth of research & design, collaboration and negotiation with : Spectral Technologies- Toronto Canada Saft- Corporate and Jacksonville Florida plant Crim Engineering and Sales- Birmingham Alabama Southern Company Technical Services Electrical Design

• Energy Source for remote loads

• capable of providing seven (7KW) loads for two (2) hours on battery reserve.

• Load types are 5kW inverter (120VAC Loads ) and 2KW (125VDC) loads.

AC Distribution Panel– 118-122Vac from no load to full load DC Distribution Panel– 100 – 140Vdc from no load to full load. • Unit is to be equipped with an electrostatic shielded

transformer for the dual AC inputs and Inverter Bypass.

Integrated and centralized power unit, with AC & DC distribution centers incorporating an energy source capable of providing seven (7kW) loads for two (2) hours. Load Needs

AC: ~ 5kW via inverter for DCS/DAS DC: ~ 2kW for switch gear loads

Our typical/designed profile

COMPACT POWER CENTER (7 KW-CPC)

Period

Time (Mins.)

Load

1

119.5

55.00 A

2

0.5

150.00 A

COMPACT / CRITICAL POWER CENTER (7 KW-CPC)

AC DISTRIBUTION PANEL

INVERTER MANUAL-BY-PASS

SWITCH & ALT/Bypass BKR

CONTROLLER RECTIFIER SHELVES

MAIN BREAKERS

RECTIFIER REAKERS

DC DISTRIBUTION PANEL

INVERTER Input BKR

Input & Control power Transformers

ALARM TERMINAL BLOCK

A- BATTERY BLOCK

DC CONTACTORS & Management Controllers

B- BATTERY BLOCK

Load testing Plugs

The CPC project started as a design build in spring 2012 – PEEC space is at a premium – The incumbent technology

• low cost VRLA • VLA with dedicated room

– SAFT IntensiumFlex solution provides: • Integral cell/module/string/battery monitoring • 14 years life at constant 104°F (40°C) • 5,000 CH/DCH cycles to 80% DoD • ~6x smaller volume than VRLA • ~12x lighter than VRLA

Critical Power (5kVA to 7kVA) Vmin: 105Vdc Vmax: 140Vdc Load: 7kWb for 2 hours Temp.: 40°F (minimum) 120°F (maximum)

CPC 7 KW

(~9.5 sqft)

58 – Battery Cells (300-400 Ahrs)

Charger A Inverter

DC Fuse Panel

Charger B

DC Distribution

Panel

AC Distribution

Panel

HVAC, H2 , Eye Wash Stations, Spill containment and so on

WITH OVERALL DIMENSIONS OF 56 inches wide 24 inches deep 72 inches tall

THIS ELIMINATES THE NEED FOR: • LARGE BATTERY ROOMS • FUSE PANELS, DISTRIBUTION PANELS • SPILL CONTAINMENT • SAFETY SHOWERS • LARGE EXHAUST FANS AND HVAC UNITS

CIVIL DESIGN

ENGINEERING

MECHANICAL DESIGN

ENGINEERING

ELECTRICAL DESIGN

ENGINEERING

Summary : - Standardize Unit that Provides AC Power & DC Power

with its associated distribution - Shielded Dual AC Input for both chargers & inverters - All Components are Modular and can be replaced &

maintained online - Fully integrated into our DAS

- Alarms - System Status

- 20 Year Design on all components with minimal routine maintenance