Sarah Ward Head: Energy & Climate Change City of Cape Town South Africa
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- Myron Webster
- 5 years ago
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1 Sarah Ward Head: Energy & Climate Change City of Cape Town South Africa
2 Doing more with less
3 Cape Town: Economic verses electricity sales growth
4 MWh Cape Town - Electricity consumption
5 GWh Cape Town Electricity sales by tariff Domestic Small Power User Large Power User Municipal / / / / / / /13
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7 Energy Committee Sectn 79 (11 Councillors) (since mid 2008) Exec Management Team subcommittees economic cluster political administrative Work stream 1: Energy Security, Resource Efficiency Energy and Climate Change Unit Work stream 2: Climate Resilience Disaster Risk Management Work stream 3: Communication and education
8 Energy and Climate Action Plan objectives
9 Energy efficiency in Council operations: Leading by example Current savings: R18m/year R109m/5 years Investment: R58m
10 Energy and Climate Action Plan objectives
11 Internal Energy Management Policy Resource Efficient Development Policy
12 Public Campaigns and Programmes working with the community
13 Benefit from behaviour Cape Town s Electricity Saving Campaign Invest-to-save Low cost No-cost Cost of behaviour
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15 The effects of wasting electricity were demonstrated to Capetonians using community press, community centres, the internet, as well as by harnessing tactical opportunities.
16 Cape Town s Solar Water Heater Accreditation Programme
17 SWH programme: Consumer Research (May 2013) Likely purchasers of SWH in Cape Town: LSM 7-10 (income >R10 255/month), resident homeowners, no SWH homeowners 95% confidence level
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22 Solar water heater programme: financial benefits for households, city economy For each 100,000 installed R 300million p.a. that would have been paid to Eskom kept in City When SWHs are paid off = ~R800million/a savings in households About R1Bn invested in local solar water heater business Electricity savings of MWh / annum (3% of total current consumption) / tons carbon/ annum
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24 Energy Efficiency Forum for commercial sector Supported by: University of Cape Town, Provincial Government of the Western Cape, Green Building Council of South Africa, Cape Town Partnership, Cape Peninsula University of Technology, Accelerate Cape Town
25 EE Forum Collaboration between the City of Cape Town, Eskom, SAPOA Started in 2009, now has over 1500 registered members 3 meetings a year Technical support
26 EE Forum Awards 2012 V&A Waterfront; Vunani Properties 2013 Head offices and franchises category: Woolworths Single building category: Cavendish Square New Buildings category: Hotel Verde
27 V&A Waterfront Investment of R22 million saving of 11,3 GWh/a or 15,5%; payback under 5 years energy management system air-conditioning lighting controls variable speed drives on pumps and motors credible metering and billing systems targets in staff performance contracts Sustainability Committee
28 Woolworths cut electricity by over 31% below 2004 benchmark. building management computerised system = centralised control energy efficiency part of key performance areas of every business unit energy champions staff awareness programmes Share information with competitors
29 Hotel Verde at airport Three vertical-axis wind turbines Elevators with regenerative braking Northern facing windows shaded by photovoltaic panels Geothermal heating / air-con system coupled to heat pumps for central heating/cooling and hot water Energy generating gym equipment Sustainability Committee
30 Hotel Verde - Guest Behaviour Sustainable art!! Guests earn Verdinos which can be used anywhere in the Hotel - earned through: o re-using towels o avoiding air-conditioning o using gym equipment o jogging around the eco-trail; cycle to the hotel o arriving with public transport
31 Revenue impacts on municipalities of EE and PV
32 Payback Period (years) Payback Period (years) Small scale embedded gen Payback periods as price decreases Residential % drop in PV 4% drop in PV Commercial 0 Install now Install in 5 years Install in 10 years % drop in PV 4% drop in PV 0 Install now Install in 5 years Install in 10 years 0
33 High Penetration % Revenue loss for interventions (op revenue) over 10 years Loss % (operating revenue) 2.0% 0.0% -2.0% -4.0% -6.0% -8.0% -10.0% -12.0% -14.0% -16.0% % Res PV no fixed charge 0.00% -0.05% -0.16% -0.44% SWHs 0.00% -0.38% -1.31% -3.58% Other res EE* 0.00% -0.18% -0.62% -1.71% Comm PV no fixed charge 0.00% -0.11% -0.38% -1.04% Commercial EE 0.00% -0.08% -0.28% -0.77% Ind PV no fixed charge 0.00% -0.75% -2.79% -7.74% Industr EE 0.00% -0.13% -0.44% -1.20% Landfill gas 0.00% 0.00% 0.00% 0.00% Load bal. 0.00% 0.00% 0.00% 0.00% Street & Traffic lights 0.79% 0.79% 0.82% 0.88% All interv. (no fixed Charge) 0.79% -0.89% -5.13% %
34 Summary of impact from EE and RE on business as usual Year 3: Between.6% - 1.4% Year 5: Between 2.3%-5.3% Year 10: Between 4%-15% What does this impact mean to a municipality?
35 Poverty Cape Town Electricity component of budget 37% (total income) 21.6% (bulk purchases) 15.4% of the revenue generated stays in the City Broken up into 3.7% to cross subsidise City and 11.7% to run the electricity dept
36 Summary: Mitigation strategies to cope with revenue loss Decoupled tariff (energy and fixed charge) Time of use tariff if possible Central buyers office (NetFIT) Efficient munic business processes decrease expenditure; changing the businesses Growth Fixed charge for PV installations probably won t work
37 Cape Town Global Earth Hour Capital 2014
38 Thank You Become an EE Forum member and enter the awards by visiting the website at