ENPOWER Battery
Energy Storage System

ENHANCE PERFORMANCE

MINIMIZE DOWNTIME.

Ensign’s EnPower Battery Energy Storage System (BESS) is an easy solution that is powerful in its performance. The battery is paired with a proactive energy management system to deploy and store energy to use in combination with traditional generator power.

Using robust algorithms, BESS monitors the power demand of the rig and optimizes the power generation to automatically turn gensets on and off and deploy the battery as needed. The result is greatly increased generator efficiency, reduced power limits, and optimal fuel efficiency without sacrificing drawworks speed.

The lithium-ion batteries of the BESS are designed to last in rugged drilling environments and can be combined with highline power, diesel, natural gas or bi-fuel generators.

What’s more, with superior transitioning and load-levelling between the battery system and generators, BESS enhances the rig’s power performance and fuel efficiency.

Safety Design Features

System Specifications Overview

Specification2MVA / 1.6MW AC Connected1.5MVA / 1.2MW AC Connected1MVA / 800kW AC Connected
hEMS Output Voltage (nominal)600Vac, 3ph600Vac, 3ph600Vac, 3ph
DC/AC Converter Output4@500kVA / 400kW3@500kVA / 400kW2@500kVA / 400kW
Energy Storage Capacity538kWh403kWh269kWh
Peak Battery Power (6C)3.2MW2.4MW1.6MW
Max Continuous Charge / Discharge Rate (3C/3C)1.6MW1.2MW800kW

<span class="bess-main-head">Specification</span>

<span class="bess-2mva-row row-head">2MVA / 1.6MW AC Connected</span>

<span class="bess-hmva-row row-head hidden">1.5MVA / 1.2MW AC Connected</span>

<span class="bess-1mva-row row-head hidden">1MVA / 800kW AC Connected</span>

<div id="ac-toggle"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="11" viewBox="0 0 20 11" fill="none"><path d="M10 11L-9.45698e-07 1.58893e-07L20 1.90735e-06L10 11Z" fill="#FFF"/></svg></div>

<span class="highlighted-mobile">hEMS Output Voltage (nominal)</span>

<span class="bess-2mva-row">600 Vac, 3ph</span>

<span class="bess-hmva-row hidden">600 Vac, 3ph</span>

<span class="bess-1mva-row hidden">600 Vac, 3ph</span>


<span class="highlighted-mobile">DC/AC Converter Output</span>

<span class="bess-2mva-row">4@500kVA / 400kW</span>

<span class="bess-hmva-row hidden">3@500kVA / 400kW</span>

<span class="bess-1mva-row hidden">2@500kVA / 400kW</span>


<span class="highlighted-mobile">Energy Storage Capacity</span>

<span class="bess-2mva-row">538kWh</span>

<span class="bess-hmva-row hidden">403kWh</span>

<span class="bess-1mva-row hidden">269kWh</span>


<span class="highlighted-mobile">Peak Battery Power (6C)</span>

<span class="bess-2mva-row">3.2MW</span>

<span class="bess-hmva-row hidden">2.4MW</span>

<span class="bess-1mva-row hidden">1.6MW</span>


<span class="highlighted-mobile">Max Continuous Charge /</br>
Discharge Rate (3C/3C)</span>

<span class="bess-2mva-row">1.6MW</span>

<span class="bess-hmva-row hidden">1.2MW</span>

<span class="bess-1mva-row hidden">800kW</span>


Specification1.5MW DC Connected1.1MW DC Connected750kW DC Connected
hEMS Output Voltage (nominal)810–850VDC810–850VDC810–850VDC
DC/AC Converter Output4@375kW3@375kW2@375kW
Energy Storage Capacity497kWh373kWh249kWh
Peak Battery Power (6C)3MW2.2MW1.5MW
Max Continuous Charge / Discharge Rate (3C/3C)1.5MW1.1MW750kW

<span class="bess-dcmain-head">Specification</span>

<span class="bess-hmw-row row-head">1.5MW DC Connected</span>

<span class="bess-1mw-row row-head hidden">1.1MW DC Connected</span>

<span class="bess-7kw-row row-head hidden">750kW DC Connected</span>

<div id="dc-toggle"><svg xmlns="http://www.w3.org/2000/svg" width="20" height="11" viewBox="0 0 20 11" fill="none"><path d="M10 11L-9.45698e-07 1.58893e-07L20 1.90735e-06L10 11Z" fill="#FFF"/></svg></div>

<span class="highlighted-mobile">hEMS Output Voltage (nominal)</span>

<span class="bess-hmw-row">810–850VDC</span>

<span class="bess-1mw-row hidden">810–850VDC</span>

<span class="bess-7kw-row hidden">810–850VDC</span>


<span class="highlighted-mobile">DC/AC Converter Output</span>

<span class="bess-hmw-row">4@375kW</span>

<span class="bess-1mw-row hidden">3@375kW</span>

<span class="bess-7kw-row hidden">2@375kW</span>


<span class="highlighted-mobile">Energy Storage Capacity</span>

<span class="bess-hmw-row">497kWh</span>

<span class="bess-1mw-row hidden">373kWh</span>

<span class="bess-7kw-row hidden">249kWh</span>


<span class="highlighted-mobile">Peak Battery Power (6C)</span>

<span class="bess-hmw-row">3MW</span>

<span class="bess-1mw-row hidden">2.2MW</span>

<span class="bess-7kw-row hidden">1.5MW</span>


<span class="highlighted-mobile">Max Continuous Charge /</br>
Discharge Rate (3C/3C)</span>

<span class="bess-hmw-row">1.5MW</span>

<span class="bess-1mw-row hidden">1.1MW</span>

<span class="bess-7kw-row hidden">750kW</span>


FeatureSpecification
Genset operational data monitoring, alerts, and protectionPlug-and-Play Ready
Localized DataDriller's Cabin & Other HMIs
Online Data RoomYes - 24/7 Cloud Access
Data AuditingMonthly Report & Logged Data
Marine Grade BatteriesDNVGL-CG-0339 Certificate Available or Equivalent
Thermal Runaway ProtectionPassive: Cell-level; DNV-GL Pt.6 Ch.2; NMA 2016 Circular
Short Circuit ProtectionBattery Side & Output Side
Emergency Stop CircuitHard-Wired
Disconnect Switchgear RatingFull Load
Shock & vibration DampeningMil-Std-810G Category 4
Standard HVAC (Ambient Temp.)-20°C to 40°C
Ruggedized HVAC (Ambient Temp.)-45°C to 55°C
FeatureSpecification
Genset operational data monitoring, alerts, and protectionPlug-and-Play Ready
Localized DataDriller's Cabin & Other HMIs
Online Data RoomYes - 24/7 Cloud Access
Data AuditingMonthly Report & Logged Data
Marine Grade BatteriesDNVGL-CG-0339 Certificate Available or Equivalent
Thermal Runaway ProtectionPassive: Cell-level; DNV-GL Pt.6 Ch.2; NMA 2016 Circular
Short Circuit ProtectionBattery Side & Output Side
Emergency Stop CircuitHard-Wired
Disconnect Switchgear RatingFull Load
Shock & vibration DampeningMil-Std-810G Category 4
Standard HVAC (Ambient Temp.)-20°C to 40°C
Ruggedized HVAC (Ambient Temp.)-45°C to 55°C

YOUR COMPETITIVE EDGE

Today’s oil and natural gas producers demand innovative solutions 
for peak performance. Leading-edge EnPower products from Ensign 
are the answer.

Our state-of-the-art technology will optimize performance, reduce costs, and keep your rigs in service.