Ben Godfrey Innovation & Low Carbon Networks Engineer Energy - - PowerPoint PPT Presentation

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ben godfrey innovation low carbon networks engineer
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Ben Godfrey Innovation & Low Carbon Networks Engineer Energy - - PowerPoint PPT Presentation

Oct 28, 2023 129 likes •374 views

Energy Storage for Distribution Networks Ben Godfrey Innovation & Low Carbon Networks Engineer Energy Storage for Distribution Networks Who Are We? 7.8 Million customers over a 55,500 sq kms service area Our network consists of

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Energy Storage for Distribution Networks Ben Godfrey Innovation & Low Carbon Networks Engineer

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Energy Storage for Distribution Networks

  • 7.8 Million customers over a 55,500 sq kms service area
  • Our network consists of 221,000 kms of overhead lines

and underground cables, and 185,000 substations

  • LV to 132kV Network ownership

Who Are We?

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Distribution Network Challenges

Energy Storage for Distribution Networks

Voltage Thermal Fault Level Harmonic Reverse Power Flow

Changing Load and Generation Mix

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Flexible Approaches to Low Carbon Optimised Networks

Energy Storage for Distribution Networks

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Benefits of Energy Storage Systems

Energy Storage for Distribution Networks

ENERGY STORAGE SYSTEM Grid Voltage Control Real Power Control Energy Level Control Voltage Thermal Fault Level Harmonic Reverse Power

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Equipment Deployed

Energy Storage for Distribution Networks

100 kWh Base Unit 50(100) kW Inverter Site Controller DC Switchgear

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Existing Distribution Sites

Energy Storage for Distribution Networks Colour to match existing

Bespoke GRP 2600 mm W x 1800 mm D x 2750 mm H

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Installed Layout

Energy Storage for Distribution Networks

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Installed Layout

Energy Storage for Distribution Networks

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Installed Layout

Energy Storage for Distribution Networks

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Physical Installation Challenges

Energy Storage for Distribution Networks

  • Large Form Factor
  • Difficult to manoeuvre
  • DC wiring knowledge gaps
  • Fan Noise
  • Switching Frequency Noise
  • Environmental Conditions
  • Heat Dissipation
  • Electrical Protection (G59)
  • Modes of Failure
  • Harmonic Content
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DNO Usage Profile

Energy Storage for Distribution Networks

50 100 150 200 250 1 9 17 25 33 41 49 57 65 73 81 89 97 105 113 121 129 137 145 153 161 169 177 185 193 201 209 217 225 233 241 249 257 265 273 281 289 297 305 313 321 329 337 345 353 361

250A Circuit

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DNO Usage Profile

Energy Storage for Distribution Networks

0.00% 2.00% 4.00% 6.00% 8.00% 10.00% 12.00% 14.00% 16.00% 50 100 150 200 250

250A Circuit 0.31%

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Sharing the Benefits

Energy Storage for Distribution Networks

Triad Tariff Day/ Night Tariff Red Rate Duos STOR FCDM FFR Quality

  • f

Supply Reinforc ement Deferral Security

  • f

Supply

Supplier National Grid Distribution Network

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Peak Shaving (24 hours)

Energy Storage for Distribution Networks

  • 40
  • 20

20 40 60 80 100 13/09/2014 13/09/2014 04:00 13/09/2014 08:00 13/09/2014 12:00 13/09/2014 16:00 13/09/2014 20:00

Power (kW)

Thousands

AMBRIDGE GROVE

Sum of Energy storage unit active power Sum of Sub active power excluding energy storage Sum of Total mean busbar active power - inc energy storage

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Peak Shaving (week)

Energy Storage for Distribution Networks

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Frequency Regulation (9 hours)

Energy Storage for Distribution Networks

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Combined Operation Results

  • 0.25
  • 0.15
  • 0.05

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Cumulative ESS output (MW/MVAR) Feeder Load (MW/MVAR)

ESS Combined Operation for 19/01/2015

Sum of Feeder active power, inc ESS output (MW) Sum of Feeder active power, excluding ESS output (MW) Sum of Cumulative ESS active output (MW)

Note 3 Note 4 Note 1 Note 2

Energy Storage for Distribution Networks

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SLIDE 19
  • 0.25
  • 0.15
  • 0.05

0.05 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0

Cumulative ESS output (MW/MVAR) Feeder Load (MW/MVAR)

ESS Combined Operation for 20/01/2015

Sum of Feeder active power, inc ESS output (MW) Sum of Feeder active power, excluding ESS output (MW) Sum of Cumulative ESS active output (MW)

Note 1 Note 2 Note 3 Note 4

Combined Operation Results

Energy Storage for Distribution Networks

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Project Learning

  • Optimum charge and discharge windows
  • Available triggers for charging regime
  • DNO connection requirements for ancillary grid service
  • peration
  • Best placement of storage on the system
  • Lifespan of battery versus running operation
  • Integration of ESSs with existing control environments
  • Improvements for equipment specifications
  • Input to UK-wide Good Practice Guide on storage
  • WPD Policy design for installation of battery storage facilities

Energy Storage for Distribution Networks

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Project Benefits

Energy Storage for Distribution Networks

  • Carbon offsetting through storage systems
  • Reduction in I2R system losses
  • Improvement in system efficiency
  • Voltage support
  • Reinforcement deferral
  • Reduced risks of stranded assets as deployment of battery

storage gives options to delay reinforcement investment until demand trends are established

  • Power quality improvements
  • Facilitation of more Low Carbon Technologies
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Q&A?

Energy Storage for Distribution Networks

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Energy Storage for Distribution Networks

wpdinnovation@westernpower.co.uk www.westernpowerinnovation.co.uk

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Ben Godfrey

Western Power Distribution Innovation & Low Carbon Networks Engineer T: 07894258687 E: bgodfrey@westernpower.co.uk