energy storage - 9: richard riley, highview

© Highview Enterprises Limited, 2015

Liquid Air Energy Storage (LAES)Pre-Commercial Demonstrator


Agenda

1. Highview: a brief history2. Overview of LAES3. The Liquid Air Energy Storage

pre-commercial demonstrator4. Looking forward


Company Timeline

FutureResearch began at University of Leeds.

The power recovery cycle demonstrated in lab-scale tests.

2005

2008

Installation of power recovery cycle in pilot plant.

2010

Installation of complete pilot CryoEnergy Storage plant.

2011

Highview enters into a license agreement with General Electric.

2013 Highview and Advanced Emissions Solutions Inc. of Denver Colorado sign a licence and investment deal for North America.

2014

2014

Highview in collaboration with Viridor, awarded funding for a 5MW LAES demonstration project by the UK Government.

2015

Frost & Sullivan awards Highview with Global Large-Scale Energy Storage Technology Innovation Award.

Highview signs co-operation agreements with the Messer group and Basil Read Energy of South Africa.

2012

The new GigaPlant 1.2GWh/200MW.


How Does LAES work?

1. Charge

2. Store 3. Discharge

1. Charge: Offpeak or excess electricity is used to power an air liquefier, which produces liquid air.

2. Store: The liquid air is stored in a tank(s) at low pressure.

3. Discharge: To recover power the liquid air is pumped to high pressure, evaporated and heated. The high pressure gas drives a turbine to generate electricity.


Energy Storage – Different Needs


Energy Storage – Main Technologies

Benefit Time

End user

Distribution

Transmission

Utility System

Independent operators

Energy ($/kWh)

Power ($/kW)

Reliability ($/kW)

Operations ($/kWh)

DESS

Hou

rsM

ins

Sec

Energy mng.

SystemCapacity

AncillaryServices

10s kW 100s kW 10s MW 100s MW

RenewableSmoothing

T&D System Support

T&D Investement Deferral

RenewableIntegration

Energy Arbitrage

Reliability Liquid Air

Flywheels

Super Capacitors

CAES

PumpedHydro

Battery


LAES – Standard Configuration

Compression

Cleaning High Grade Cold Store

Hot Thermal

Store

Refrigeration LAIR Storage

Evaporation ExpansionPower

OutPower

In

Air In Air Out

CHARGE STORE DISCHARGE

60%AC/AC


LAES: Technology Benefits

• LAES uses existing mature components (liquefier, liquid air storage, power turbine), with proven performance, cost, lifetime (25 year+).

• Suitable for large energy stores from about 20MWh to >1GWh, not restricted by geography.

• 60% efficiency in stand alone mode.

• Integrates well with other industrial process plant (utilising waste heat/cold) to enhance performance e.g. 70%+.

• Costs/economics improve with scale (50MW/200MWh <£1,000/kW <£250/kWh).

• Can be integrated at renewable site, but more valuable as a system resource for enabling wider renewable deployment.

• The system is ready for deployment at commercial scale (>5MW/15MWh) in industrial or utility applications.

350kW/2.5MWh

20MW/80MWh

50MW/200MWh

500MW/2,000MWh


Demonstration of Commercial Operation

£8m funding to build a 5MW, demonstrator to show:•Economic performance•Operability•Reliability


Site located near Manchester, UK


2. Discharge: To recover power the liquid nitrogen is pumped to high pressure, evaporated and heated. The high pressure gas drives a turbine to generate electricity.

Liquid nitrogen trucked to site

1. Liquid Nitrogen Delivered: stored in tanks until required. Saves cost of liquefier.

2. Discharge1. Liquid Nitrogen Delivered


CAD of Highview’s LAES Plant at Viridor’s Landfill Gas Generation Site in Greater Manchester, UK.

4.

2.

6.

3.

1.

5.

7.

1. Cryogenic/liquid nitrogen storage tanks2. Cryogenic pump3. Evaporator heat exchangers4. Turbine/power recovery unit

8.

5. Interstage heat exchangers6. Thermal storage tanks7. Landfill gas engines8. Electrical switch gear

LAES Pre-Commercial Demonstrator


High-Grade Cold Store

• Bolt-on to main installation• Demonstration of cold

capture at scale


The site today


How has the DECC programme helped us?

The benefits are already apparent:

• Engagement with the supply chain

• Alignment of specifications

• Understanding of ‘soft costs’

• Accelerated innovation


Traction in the Market: 2015 Feasibility Studies

Since funding announcement:• Global licence with GE for peaker application• North America Licence with ADA-ES• Total new investment of >£4m• A number of feasibility studies launched:


Conceptual GigaPlant 200 MW / 1.2 GWh

4 x 2,500 tpdliquefiers

2 x 7,000 tonne liquid air tanks

Heat storage

High gradecold storage

Cryo pumps8 x 25MW turbines

Evaporators

energy storage - 9: richard riley, highview

Environment