Demand Side Response (DSR) reduces electrical usage during peak demand periods to help avoid using expensive power stations. DSR programs involve reducing consumption through methods like on-site generation, adjusting production schedules, and optimizing building management systems and lighting. DSR provides benefits like financial savings, supporting renewable energy, and reducing carbon emissions. It is a growing resource as the electricity network transforms and more intermittent renewable sources are added.

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Demand Side Response

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Demand Side Response (DSR) is any method
of reducing electrical use, in response to
Peaking demand on the National Grid
Allows system operators such as National
Grid to avoid using expensive and polluting
“peaking” power stations
What is Demand side Response (DSR) ?
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Where existing backup generators are on-site or
planned, they can be used to offset site demand
when needed, or used to export back on to the grid
Rescheduling production runs and temporary build
up of inventory can dramatically cut consumption at
peak times
Process optimisation Onsite generation
A typical DSR programme will also consider:
Building Management Systems (BMS)
Existing systems used for intelligent and
automated control
Air handling
Short term change to temperature set point
doesn’t affect comfort and can reduce a
building’s consumption by up to 20% *
Lighting
Shutting off or dimming certain lights for a short
time can cut consumption by up to 15% *
What does a programme look like?
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* Based on trails with customers

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From simple manual turn-down or load shedding…
…to fully automated site load replacement and export back to grid using on-site generation
The level of participation is up to you?
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Short Term Operating Reserve (STOR)
Capacity Mechanism
DSBR
DNO Programmes
Frequency Response
Triad/DuoS Management
National Grid
DECC
National Grid
Individual DNOs
National Grid
Suppliers
Programme Operator
This creates a growing number of opportunities
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Assess site(s) and sign no risk
DR Framework
Customer now operational,
with SSE and KiWi Power
managing events, payments
and reporting
We carry out full site audits,
designs customer
programme, and installs
smart meters and controls to
execute DR, and train staff
Stage 2:Stage 1:Stage 1:
Engagement
Initial assessment
Sign-up
Stage 2:
Site audit
Programme design
Install, test and train
Stage 3:
Participation
Payments
Report and review
DSR programme journey
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Why do we need Demand
Side Response?
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UK electricity demand
continues to increase
Year
TWhperyear
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Source: 2008 BRE Report Changing Energy Use

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e.g. Didcot Power Station
closed March 2013 - 2000 MW
And 25% of capacity
shutting down
Nearly 30GW of
capacity reductions
already announced
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Source: DECC – Planning our Electric Future
white paper: Affordable and Low Carbon Electricity

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More renewables are
required to meet the UK’s
growing Energy needs
The impact is greater
devolution, complexity
and intermittency of
supply…
renewables means less op
Which places a greater
emphasis on Demand
Side measures.
US Electricity Generation
UK electricity generation
Renewables would need to be the largest single source of
UK electricity in 2020
More renewables are
required to meet the UK’s
growing energy needs.
The impact is greater
devolution, complexity and
intermittency of supply….
All of which requires a
smarter network and
balancing.
Greater uncertainty or
intermittency in supply from
renewables means less
opportunity for Network
balancing from an
increasingly large proportion
of generation capacity…
Which places a greater
emphasis on Demand Side
measures.
The impact of renewables
32%
13%
6%2%1%
46%
2009
Coal Nuclear
Renewables Other sources
Oil Gas
22%
8%
31%
9%
1%
29%
2020
0
50
100
150
200
250
300
350
2008 2020
Other
Coal
Gas
Neuclear
Renewables
DECC
TWh
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Sources: http://news.bbc.co.uk/1/hi/sci/tech/8150919.stm
and Key Issues for the New Parliament 2010 –
Balancing the UK Energy Supply

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Benefits of Demand Side
Response
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Financial Benefits: Participation can generate significant new revenue streams
No Cost: There is no cost to participants or any interruption to service (depending on the level of
participation sought)
Hedging Against Increased Energy Costs: Offset increased energy costs through increased DR
payments
Evaluate/Maintain Operational Readiness: Continued monitoring and activation of controls and
generation assets ensures infrastructure is operationally sound
Reduce CO2, support renewable generation: Reduce costs through CRC, improve Green
credentials as a result of reduced consumption at peak and support intermittent renewable
generation
Real-Time Energy Monitoring: Real-time, multi-site smart metering is installed and access is
provided through SSE powered by KiWi Powe’s Customer Portal, improving understanding of
energy consumption up to asset level
Financial Benefits: Participation can generate significant new revenue streams
The benefits to you
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The benefits to the wider community
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Reduce CO2: Participants immediately help make the UK electricity network less carbon
intensive and greener
UK’s Green Programme: Helps with integration of renewable energies such as wind and
solar PV on to the GRID
Financial Benefits: OFGEM estimates* that DSR could save the UK £800m annually on
transmission costs, and £266m on peak generation capacity –equivalent to £40 saving on
every annual bill
Source: *Demand Side Response : A discussion
paper - https://www.ofgem.gov.uk/ofgem-
publications/57026/dsr-150710.pdf

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• Peaking Power is typically 5 x as polluting as baseload
• DSR saves 400 to 700 grammes of carbon per kWh
• Studies indicate DSR could save 1.2m tonne of CO2 emissions annually by 2030
• Renewable energy sources are intermittent and DSR balances the grid
• The information provided by SSE powered by KiWi Power’s platform provides real-time energy
intelligence and technology to further reduce consumption
• Turning down demand at peak times is substantially cheaper than burning fossil fuels at peaking power
stations
• OFGEM estimates that DSR could save the UK £800m annually on transmission costs, and £266m on
peak generation capacity
DSR is cleaner than generation:
DSR is cheaper than generation:
DSR supports renewable energy and energy efficiency:
Wider benefits to DSR
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Source: Demand Side Response : A discussion
paper - https://www.ofgem.gov.uk/ofgem-
publications/57026/dsr-150710.pdf

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Case Studies
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• Customer since 2012
• Multiple standby generators
• Remote start/stop
• Declared volume: 1MW
(rising to 3MW in April 2014)
• Successful events: 21
• Average event length: 66 min
• Total delivered volume: 26559 kWh
Colchester Hospital
Our Customers
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• Customer since 2012
• Multiple standby generators
• Combined heat and power (CHP)
• Remote start/stop
• Declared volume: 4.5MW
• Successful events: 17
• Average event length: 80 min
• Total delivered volume: 80223 kWh
Lister Hospital
Our Customers
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Energy Monitoring
Platform
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Our operations centre provides real-time
monitoring of National Grid and all UK DNO’s
We also manage real-time data collection from over
650 meter points, making information available to
customers through our Customer Portal
Smart technology
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Log in to see all sites
and select from
screen menu
…drill further to view
and compare
historical
consumption for each
meter….
…drill down into live,
minute-by-minute kW
consumption for each
site/meter point…
…receive reports for
every DR event, with
full details and
payment
reconciliation.
Customer Portal
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Managing market complexity
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The significant transformation in the UK energy
market has brought about a large amount of new
policy and regulatory developments, many of
which are still on-going
Our expertise is in understanding and influencing
these policy decisions to benefit it’s Demand Side
Response clients to open participation to
customers
Driving an evolving market
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From STOR, through DSBR and DNO Programmes,
to Capacity Mechanism and beyond – more DSR is
required to ‘keep the lights on’ , and we are best
placed to guide and partner you on the journey
The market for Demand Side Response exists
today, and is growing. There are many potential
markets, each with their own operational criteria
and more are coming
From niche and complex to critical
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Further information contact:
07917212193
Wayne.hall@ssecontracting.com
www.sseenterprise.co.uk
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