This document discusses how improving energy efficiency and increasing renewable energy generation can help address issues with the UK's energy system. It notes that while renewable capacity is growing, it only accounts for about a quarter of electricity generation currently. Improving building insulation and switching to more efficient lighting, heating, and cooling can significantly reduce energy consumption to better match intermittent renewable supplies. Combining different technologies like solar, efficient heat pumps, and combined heat and power can maximize the benefits and allow renewables to meet a larger share of electricity demand. A case study distribution center was used as an example to illustrate how a multi-technology approach could achieve major energy and carbon savings.

1. making sustainability work
Helen Troup, EMEX London 2017
Energy productivity through efficiency & renewables

2. 01 02 03
The problem
with
renewables
Potential
solutions
What you
could
achieve
Energy productivity through efficiency & renewables

3. 01 02 03
The problem
with
renewables
Potential
solutions
What you
could
achieve
Energy productivity through efficiency & renewables

4. The problem: Not enough, not at the right time

5. UK renewable generation capacity grows year on year
Source: BEIS, DUKES 2017
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5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
2009 2010 2011 2012 2013 2014 2015 2016
Totalinstalledcapacity(MW)
Plant Biomass 3
Anaerobic Digestion
Animal Biomass (non-AD) 2
Energy from waste
Sewage sludge digestion
Landfill gas
Large scale Hydro
Small scale Hydro
Solar photovoltaics
Shoreline wave / tidal
Offshore Wind
Onshore Wind

6. Still, it’s only a quarter of total UK electricity generation
Source: BEIS Annual Energy Report, March 2017
Gas
43%
Nuclear
21%
Coal
9%
Oil & other
3%
Renewables
24%
% in grid mix

7. Supply and demand don’t always match
0
5,000
10,000
15,000
20,000
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35,000
40,000
0
2,000
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0:00:32
0:35:31
1:10:32
1:45:32
2:20:33
2:55:31
3:30:32
4:05:32
4:40:33
5:15:31
5:50:32
6:25:32
7:00:32
7:35:31
8:10:34
8:45:33
9:20:34
9:55:31
10:30:31
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11:40:33
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12:50:32
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15:10:31
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16:55:32
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18:40:31
19:15:32
19:50:31
20:25:32
21:01:13
21:36:13
22:11:13
22:46:14
23:20:32
23:55:31
Load(kW)
Renewablesoutput(kW)
Timestamp
Wind Solar Biomass Demand

8. 01 02 03
The problem
with
renewables
Potential
solutions
What you
could
achieve
Energy productivity through efficiency & renewables

9. Solution: reduce consumption and match generation
0
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70
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23:30
Half-hourlyelectricityconsumption(kWh)
Wind Solar PV Demand

10. Solution: Reduce consumption

11. Efficiency can improve renewables performance

12. 01 02 03
The problem
with
renewables
Potential
solutions
What you
could
achieve
Energy productivity through efficiency & renewables

13. Example 1: Light industrial unit
Insulation
Shutter
doors
Air source
heat pumps

14. Heat pumps are fridges in reverse
Extract heat from
environment
– air, water, ground
Use
power
to raise
temp.
Deliver useful heat

15. Example 2: Distribution centre
ASOS’s Eurohub in Berlin, Germany
(source: ASOS)

16. Reduce demand and match supply
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23:00
Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas

17. Improving thermal performance - a quick win

18. Improving thermal performance - a quick win for multiple
resources
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas
20%
saving on
heating
15%
saving on
power for
cooling

19. Ensure heat and cooling is well-distributed

20. Ensure heat and cooling is well-distributed
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas
Further
~20% saving
on heating

21. Efficient lighting is a no-brainer

22. Efficient lighting is a no-brainer
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas
~40%
saving on
power

23. Sensors allow for further savings

24. Sensors allow for further savings
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas
Further
~30% saving
on power

25. Before and after
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity - before Gas - before Electricity - after Gas - after

26. Solar can provide 33% of power demand
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Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity Gas Solar PV output

27. Combine technologies to maximise benefit
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Generation(kWh)
Consumption(kWh)
Timestamp
Distributioncentre energy profile
Electricity demand Solar PV output CHP electrical output

28. Case study – Saxon Weald

29. making sustainability work
Making sustainability work
Helen Troup
helen.troup@carbonsmart.co.uk
0207 048 0450
www.carbonsmart.co.uk