logging in or signing up THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING-Nov2010 robinthomson Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 25 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: August 29, 2011 This Presentation is Public Favorites: 0 Presentation Description THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING Comments Posting comment... By: HaroldJoh (8 month(s) ago) Try http://www.healthyhomediagnostics.com if you need a solar water heater in Durham. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript PRESENTATION THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING DATE NOVEMBER 2010: PRESENTATION THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING DATE NOVEMBER 2010 PRESENTED BY: SESSA SOLAR WATER HEATING “The only constant is change…” Isaac Asimov : “The only constant is change…” Isaac Asimov “One hour of solar radiation is equivalent to the total energy consumed by the world in a year” Vivian AlbertsAbout SESSA: About SESSA Official mouth piece for championing the age of renewables Solar Water Heating Division – 459 members Green Economic Empowerment Partnering with Eskom: Solar Water Heating Programme Non Profit Organisation Solar information hub Members from industry, science, research, development, associations, government, parastatals and the general public Founded in 1974MORE THAN A NUMBER: MORE THAN A NUMBER Membership base: quality rather than quantity 492 463LIVING BEYOND OUR CARBON BUDGET: save with SWH : LIVING BEYOND OUR CARBON BUDGET: save with SWH Up to 50% of electricity consumed is due to water heating 90% of our electricity is from coal-fired power stations The average household can reduce CO2 emissions by as much as 20% by installing a solar geyser system SA is 14 th highest emitter of greenhouse gases Power supply crisis: must diversify the local energy mix Energy price hikes Parastatals challenged to provide energy of security South Africa has optimal solar radiation: solar park Upington“The Carbon Footprint of Everything”: Mike Berners-Lee: “ The Carbon Footprint of Everything”: Mike Berners-LeeTHE AMBASSADOR: THE AMBASSADOR -noun an independent & authorised messenger or representative Independence of office important Manage and add value to the SESSA SWH membership base Position SWH as the clean-tech information portal and solar hub Facilitate the creation and maintenance of appropriate SWH standards for products, systems, methods and training ensure that the standards are communicated, understood and upheld Increase the use of renewable energy with informal education, demonstration and information dissemination to end-users and other decision makers at all levelsBELONGING TO A SOLAR TRIBE: BELONGING TO A SOLAR TRIBE Membership driven by a sense of pride & ownership of SESSA’s core brand values Code of conduct: all members of the SESSA Solar Water Heating Division are required to sign a code of the aims of which are to assist in co-operating, developing, instituting, maintaining and promoting a code of good conduct and practices for the division’s membership Weakest armies are conscripted armies Beyond the rebate debate Pursue visionMISSION: MISSION SESSA SWH is a non-profit organisation dedicated to growing the solar water heating industry in Southern Africa by building the quality of membership of the organisation; enhancing standards and good business practice; supporting a renewable energy supply mix; raising awareness about the environmental and socio-economic benefits of solar water heatingVISION: VISION Installing one square metre of solar collector per person by the year 2020WHAT is a solar hot water system?: WHAT is a solar hot water system? Use of the sun’s energy to heat water Made up of a geyser (tank) and collector (panel) Flat plate or evacuated tube collectorsWHY solar water heating?: WHY solar water heating? Up to 50% of electricity consumed is due to water heating South Africa has optimal solar radiation conditions 90% of our electricity is from coal-fired power stations SA energy mix from renewables: 10 000 gigawatt hours by 2013 23% of that mix from solar water heating Greater energy efficiency = benefit for all SA electricity generated mostly from coal SA is 14 th highest emitter of greenhouse gases Each SWH unit can prevent approximately 4.5 tons of CO2 Power supply crisis: must diversify the local energy mix SA’s committed to a target of reducing emissions by 34% by 2020THE BIG WARM A very good reason to mix things up and look to the sun: THE BIG WARM A very good reason to mix things up and look to the sunGLOBAL CARBON FOOTPRINT OF VARIOUS SECTORS: GLOBAL CARBON FOOTPRINT OF VARIOUS SECTORS IT: 3% CEMENT: 5% MEAT: 20% AVIATION: 2% BUILDINGS: 40% TECHNOLOGY…: TECHNOLOGY…FLAT PLATE COLLECTORS: FLAT PLATE COLLECTORSEVACUATED TUBE SYSTEM: EVACUATED TUBE SYSTEMACTIVE : ACTIVE Active: uses a pump to circulate the fluid/water between the collector and the storage tankPASSIVE: PASSIVE Passive: uses natural convection thermosiphon) to circulate the fluid/water between the collector and the storage tankSPLIT SYSTEMS: SPLIT SYSTEMS Split system installation: only collector is visible Can be passive or pumpedCLOSE COUPLED SYSTEMS: CLOSE COUPLED SYSTEMSWhat is the proper orientation of the collector: What is the proper orientation of the collector North-facing in the Southern hemisphere Up to 40˚ East or WestDirect (open) versus Indirect (closed) systems: Direct (open) versus Indirect (closed) systems Direct system Indirect systemTO FLY DIRECT OR INDIRECT: TO FLY DIRECT OR INDIRECT Direct: the collector heats the water directly and the water then circulates between The collector and the storage tank A direct system can only be used in areas Which are frost and lime free, without treated or borehole water Indirect: the water is stored in the storage tank, and is heated by a heat transfer fluid This is heated in the collector and flows around a jacket which surrounds The tank and thereby heats the water. An indirect system can be used in all conditions .DOMESTIC SYSTEM : DOMESTIC SYSTEMWhat happens when there is not enough sun?: What happens when there is not enough sun? Relies on solar radiation; exceptional quality in SA Solar radiation highest in the world: index of 2900 (Mojave Desert) Better insulation Hotter for longer Electrical backup on more advanced systemsWhat size geyser do I need?: What size geyser do I need?What keeps solar water hot overnight?: What keeps solar water hot overnight? Insulation results in greater heat retention Minimum heat losses at nightEXPRESSING ENERGY SAVINGS: EXPRESSING ENERGY SAVINGS “As much as 40 – 50% of your entire electricity bill” Reduce electricity used by your geyser by as much as 70% Due to system variation, make qualitative claims On a bill of R1000.00 = fly to CT ex JHB, access to the “Sharkie Zone”, Ushaka Marine World & all Super 14 Games or a bottle of Moet & Chandon Brut Imperial Non Vintage (Makro)! Save an average of 2 000 kWh of electricity, thus preventing 1000 kg of coal being burnt and the release of 3700 kg of carbonHow long will the system last?: How long will the system last?How long is the payback period?: How long is the payback period? 5 – 8 years Life Cycle costing is used to justify the purchase Negligible as part of a mortgage over 30 yrs Shorter pay-back; consecutive price hikes of 25% next three years Dependent on: Electricity cost Usage pattern Type of system installed Volume of consumptionHow do I decide on a supplier?: How do I decide on a supplier? Only use SESSA SWH members – find us on www.sessa.org.za Qualify for an Eskom rebate Eskom will approve the installation Eskom achieved exponential uptake of domestic solar systems SABS approved and track record www.eskomidm.co.za www.sessa.org.za for all your South African Sustainable Energy questionsFitting timers on a conventional system: Fitting timers on a conventional system Allows maximum savings Cuts power during sunshine and sleep hours Recommended times: Between 3am and 6am Between 3pm and 6pmTo rebate or not to rebate?: To rebate or not to rebate? Rebate rate depends on capability and performance of the system Larger systems save more electricity and result in a larger rebate A rebate will not be paid before the supplier, installer or the system have been registered with the Eskom programme Upon receipt of the correct documentation, the rebate is processed and paid in approximately 8 weeks Example rebate amounts: 150 litre system costs you R 21 000: rebate = R 5 400 250 litre system costs you R 31 000: rebate = R 8 000ATTRACTING SOLAR UPTAKE: ATTRACTING SOLAR UPTAKELONG WALK TO “GREENDOM”: low-carbon path: LONG WALK TO “GREENDOM”: low-carbon path Government pursues energy mix from renewables of 10 000 gigawatt hours by 2013 23% from SWH 300 000 green collar jobs in next 10 yrs, 20 000 in the next 2 yrs 5 million jobs in the next decade One million solar systems by 2014 SA committed to a target of reducing emissions by 34% by 2020 SWH less stress on grid SA could potentially save up to 3000MW of capacity -the equivalent of one coal fired power stationFORM FOLLOWS FUNCTION: FORM FOLLOWS FUNCTIONBRANDING FOR GOOD: how daring is your caring?: BRANDING FOR GOOD: how daring is your caring? Using sustainable low-carbon technologies as a springboard for innovation and brand presence Your are part of green energy revolution Encourage SWH as chosen medium of sustainable innovation Green Economic Empowerment complimenting Black Economic Empowerment Branded SWH offering real opportunity for market differentiation and social responsibilitySUNWATER FOR LIFE: SUNWATER FOR LIFE Green collar jobs (training supported through installation) Renewable Energy Certificates Reduced system cost installation Economic stability through an improved energy mix The advancement of previously disadvantaged communities Avoid local environmental degradation and other externalities of energy supplyGeotagging installations: Geotagging installations *150l displaces the following approximately annually: CO2 1. 6t Coal 821kg Water 2.07 kilolitres SO2 14.4kg NOx 6.4kg *As obtained from Eskom Corporate Technical ReportSWH AS A VEHICLE FOR DOING GOOD : SWH AS A VEHICLE FOR DOING GOODGREEN ECONOMIC EMPOWERMENT: GREEN ECONOMIC EMPOWERMENT Low carbon technologies and sustainable Sustainability and economic success not mutually exclusive Using sustainability as vehicle for innovation and brand presence 12 residents trained to install and maintain the solar water heaters Placed on a monthly retainer through SDA for maintenance SDA together with local community members planted 100 trees for ecological sustainability 6 computers donated to local primary school350.org : 350.orgSESSA SWH MAKES THE NY TIMES: SESSA SWH MAKES THE NY TIMESALEXANDRA AND SUNWATER FOR LIFE: ALEXANDRA AND SUNWATER FOR LIFENEWSLETTER: The Collector a medium for good work: NEWSLETTER: The Collector a medium for good workAFFILIATIONS: AFFILIATIONSWE HAVE THE POWER: WE HAVE THE POWERTowards our 2020 vision of 1 square metre of collector per person: Towards our 2020 vision of 1 square metre of collector per person Thank You! 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THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING-Nov2010 robinthomson Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 25 Category: Science & Tech.. License: All Rights Reserved Like it (0) Dislike it (0) Added: August 29, 2011 This Presentation is Public Favorites: 0 Presentation Description THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING Comments Posting comment... By: HaroldJoh (8 month(s) ago) Try http://www.healthyhomediagnostics.com if you need a solar water heater in Durham. Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript PRESENTATION THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING DATE NOVEMBER 2010: PRESENTATION THE SUN IS ALWAYS GREENER: THE CASE FOR SOLAR WATER HEATING DATE NOVEMBER 2010 PRESENTED BY: SESSA SOLAR WATER HEATING “The only constant is change…” Isaac Asimov : “The only constant is change…” Isaac Asimov “One hour of solar radiation is equivalent to the total energy consumed by the world in a year” Vivian AlbertsAbout SESSA: About SESSA Official mouth piece for championing the age of renewables Solar Water Heating Division – 459 members Green Economic Empowerment Partnering with Eskom: Solar Water Heating Programme Non Profit Organisation Solar information hub Members from industry, science, research, development, associations, government, parastatals and the general public Founded in 1974MORE THAN A NUMBER: MORE THAN A NUMBER Membership base: quality rather than quantity 492 463LIVING BEYOND OUR CARBON BUDGET: save with SWH : LIVING BEYOND OUR CARBON BUDGET: save with SWH Up to 50% of electricity consumed is due to water heating 90% of our electricity is from coal-fired power stations The average household can reduce CO2 emissions by as much as 20% by installing a solar geyser system SA is 14 th highest emitter of greenhouse gases Power supply crisis: must diversify the local energy mix Energy price hikes Parastatals challenged to provide energy of security South Africa has optimal solar radiation: solar park Upington“The Carbon Footprint of Everything”: Mike Berners-Lee: “ The Carbon Footprint of Everything”: Mike Berners-LeeTHE AMBASSADOR: THE AMBASSADOR -noun an independent & authorised messenger or representative Independence of office important Manage and add value to the SESSA SWH membership base Position SWH as the clean-tech information portal and solar hub Facilitate the creation and maintenance of appropriate SWH standards for products, systems, methods and training ensure that the standards are communicated, understood and upheld Increase the use of renewable energy with informal education, demonstration and information dissemination to end-users and other decision makers at all levelsBELONGING TO A SOLAR TRIBE: BELONGING TO A SOLAR TRIBE Membership driven by a sense of pride & ownership of SESSA’s core brand values Code of conduct: all members of the SESSA Solar Water Heating Division are required to sign a code of the aims of which are to assist in co-operating, developing, instituting, maintaining and promoting a code of good conduct and practices for the division’s membership Weakest armies are conscripted armies Beyond the rebate debate Pursue visionMISSION: MISSION SESSA SWH is a non-profit organisation dedicated to growing the solar water heating industry in Southern Africa by building the quality of membership of the organisation; enhancing standards and good business practice; supporting a renewable energy supply mix; raising awareness about the environmental and socio-economic benefits of solar water heatingVISION: VISION Installing one square metre of solar collector per person by the year 2020WHAT is a solar hot water system?: WHAT is a solar hot water system? Use of the sun’s energy to heat water Made up of a geyser (tank) and collector (panel) Flat plate or evacuated tube collectorsWHY solar water heating?: WHY solar water heating? Up to 50% of electricity consumed is due to water heating South Africa has optimal solar radiation conditions 90% of our electricity is from coal-fired power stations SA energy mix from renewables: 10 000 gigawatt hours by 2013 23% of that mix from solar water heating Greater energy efficiency = benefit for all SA electricity generated mostly from coal SA is 14 th highest emitter of greenhouse gases Each SWH unit can prevent approximately 4.5 tons of CO2 Power supply crisis: must diversify the local energy mix SA’s committed to a target of reducing emissions by 34% by 2020THE BIG WARM A very good reason to mix things up and look to the sun: THE BIG WARM A very good reason to mix things up and look to the sunGLOBAL CARBON FOOTPRINT OF VARIOUS SECTORS: GLOBAL CARBON FOOTPRINT OF VARIOUS SECTORS IT: 3% CEMENT: 5% MEAT: 20% AVIATION: 2% BUILDINGS: 40% TECHNOLOGY…: TECHNOLOGY…FLAT PLATE COLLECTORS: FLAT PLATE COLLECTORSEVACUATED TUBE SYSTEM: EVACUATED TUBE SYSTEMACTIVE : ACTIVE Active: uses a pump to circulate the fluid/water between the collector and the storage tankPASSIVE: PASSIVE Passive: uses natural convection thermosiphon) to circulate the fluid/water between the collector and the storage tankSPLIT SYSTEMS: SPLIT SYSTEMS Split system installation: only collector is visible Can be passive or pumpedCLOSE COUPLED SYSTEMS: CLOSE COUPLED SYSTEMSWhat is the proper orientation of the collector: What is the proper orientation of the collector North-facing in the Southern hemisphere Up to 40˚ East or WestDirect (open) versus Indirect (closed) systems: Direct (open) versus Indirect (closed) systems Direct system Indirect systemTO FLY DIRECT OR INDIRECT: TO FLY DIRECT OR INDIRECT Direct: the collector heats the water directly and the water then circulates between The collector and the storage tank A direct system can only be used in areas Which are frost and lime free, without treated or borehole water Indirect: the water is stored in the storage tank, and is heated by a heat transfer fluid This is heated in the collector and flows around a jacket which surrounds The tank and thereby heats the water. An indirect system can be used in all conditions .DOMESTIC SYSTEM : DOMESTIC SYSTEMWhat happens when there is not enough sun?: What happens when there is not enough sun? Relies on solar radiation; exceptional quality in SA Solar radiation highest in the world: index of 2900 (Mojave Desert) Better insulation Hotter for longer Electrical backup on more advanced systemsWhat size geyser do I need?: What size geyser do I need?What keeps solar water hot overnight?: What keeps solar water hot overnight? Insulation results in greater heat retention Minimum heat losses at nightEXPRESSING ENERGY SAVINGS: EXPRESSING ENERGY SAVINGS “As much as 40 – 50% of your entire electricity bill” Reduce electricity used by your geyser by as much as 70% Due to system variation, make qualitative claims On a bill of R1000.00 = fly to CT ex JHB, access to the “Sharkie Zone”, Ushaka Marine World & all Super 14 Games or a bottle of Moet & Chandon Brut Imperial Non Vintage (Makro)! Save an average of 2 000 kWh of electricity, thus preventing 1000 kg of coal being burnt and the release of 3700 kg of carbonHow long will the system last?: How long will the system last?How long is the payback period?: How long is the payback period? 5 – 8 years Life Cycle costing is used to justify the purchase Negligible as part of a mortgage over 30 yrs Shorter pay-back; consecutive price hikes of 25% next three years Dependent on: Electricity cost Usage pattern Type of system installed Volume of consumptionHow do I decide on a supplier?: How do I decide on a supplier? Only use SESSA SWH members – find us on www.sessa.org.za Qualify for an Eskom rebate Eskom will approve the installation Eskom achieved exponential uptake of domestic solar systems SABS approved and track record www.eskomidm.co.za www.sessa.org.za for all your South African Sustainable Energy questionsFitting timers on a conventional system: Fitting timers on a conventional system Allows maximum savings Cuts power during sunshine and sleep hours Recommended times: Between 3am and 6am Between 3pm and 6pmTo rebate or not to rebate?: To rebate or not to rebate? Rebate rate depends on capability and performance of the system Larger systems save more electricity and result in a larger rebate A rebate will not be paid before the supplier, installer or the system have been registered with the Eskom programme Upon receipt of the correct documentation, the rebate is processed and paid in approximately 8 weeks Example rebate amounts: 150 litre system costs you R 21 000: rebate = R 5 400 250 litre system costs you R 31 000: rebate = R 8 000ATTRACTING SOLAR UPTAKE: ATTRACTING SOLAR UPTAKELONG WALK TO “GREENDOM”: low-carbon path: LONG WALK TO “GREENDOM”: low-carbon path Government pursues energy mix from renewables of 10 000 gigawatt hours by 2013 23% from SWH 300 000 green collar jobs in next 10 yrs, 20 000 in the next 2 yrs 5 million jobs in the next decade One million solar systems by 2014 SA committed to a target of reducing emissions by 34% by 2020 SWH less stress on grid SA could potentially save up to 3000MW of capacity -the equivalent of one coal fired power stationFORM FOLLOWS FUNCTION: FORM FOLLOWS FUNCTIONBRANDING FOR GOOD: how daring is your caring?: BRANDING FOR GOOD: how daring is your caring? Using sustainable low-carbon technologies as a springboard for innovation and brand presence Your are part of green energy revolution Encourage SWH as chosen medium of sustainable innovation Green Economic Empowerment complimenting Black Economic Empowerment Branded SWH offering real opportunity for market differentiation and social responsibilitySUNWATER FOR LIFE: SUNWATER FOR LIFE Green collar jobs (training supported through installation) Renewable Energy Certificates Reduced system cost installation Economic stability through an improved energy mix The advancement of previously disadvantaged communities Avoid local environmental degradation and other externalities of energy supplyGeotagging installations: Geotagging installations *150l displaces the following approximately annually: CO2 1. 6t Coal 821kg Water 2.07 kilolitres SO2 14.4kg NOx 6.4kg *As obtained from Eskom Corporate Technical ReportSWH AS A VEHICLE FOR DOING GOOD : SWH AS A VEHICLE FOR DOING GOODGREEN ECONOMIC EMPOWERMENT: GREEN ECONOMIC EMPOWERMENT Low carbon technologies and sustainable Sustainability and economic success not mutually exclusive Using sustainability as vehicle for innovation and brand presence 12 residents trained to install and maintain the solar water heaters Placed on a monthly retainer through SDA for maintenance SDA together with local community members planted 100 trees for ecological sustainability 6 computers donated to local primary school350.org : 350.orgSESSA SWH MAKES THE NY TIMES: SESSA SWH MAKES THE NY TIMESALEXANDRA AND SUNWATER FOR LIFE: ALEXANDRA AND SUNWATER FOR LIFENEWSLETTER: The Collector a medium for good work: NEWSLETTER: The Collector a medium for good workAFFILIATIONS: AFFILIATIONSWE HAVE THE POWER: WE HAVE THE POWERTowards our 2020 vision of 1 square metre of collector per person: Towards our 2020 vision of 1 square metre of collector per person Thank You!