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STANDARD RESIDENTIAL ROOFTOP SOLAR ENERGY GENERATION

STANDARD RESIDENTIAL ROOFTOP SOLAR ENERGY GENERATION. BG SOLAR (PTY) LTD 2012-2013. INDEX. INTRODUCTION OPTIONS & PRICING GUIDE AMBER UP TO 25m2, 1-2 ROOMS TYPICAL RURAL HOUSE TOPAZ UP TO 50m2, 1-2 BEDROOMS TYPICAL RDP HOUSE OPAL UP TO 100m2, 1-2 BEDROOMS

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STANDARD RESIDENTIAL ROOFTOP SOLAR ENERGY GENERATION

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  1. STANDARD RESIDENTIAL ROOFTOP SOLAR ENERGY GENERATION BG SOLAR (PTY) LTD 2012-2013

  2. INDEX • INTRODUCTION • OPTIONS & PRICING GUIDE • AMBER • UP TO 25m2, 1-2 ROOMS • TYPICAL RURAL HOUSE • TOPAZ • UP TO 50m2, 1-2 BEDROOMS • TYPICAL RDP HOUSE • OPAL • UP TO 100m2, 1-2 BEDROOMS • TYPICAL LOW-COST HOUSE • SAPPHIRE • UP TO 200m2, 2-3 BEDROOMS • TYPICAL TOWNHOUSE • EMERALD • UP TO 300m2, 2-4 BEDROOMS • TYPICAL CLUSTER HOUSE • RUBY • UP TO 500m2, 3-5 BEDROOMS • TYPCIAL ESTATE HOUSE • DIAMOND • UP TO 1,000m2, 5+ BEDROOMS • UPPER-END HOUSE, MANSION

  3. INTRODUCTION • Standard approach to creating broadest range of models. • All models designed around most-generous energy budgets – from matching the national average at the lower-end models to 20 x the national average at the higher-end models. • Getting off the grid should not force one to change his/hers ways of consuming electricity • Simple to understand and build, only 6 principal components used in every model: • Solar panels (PV modules) – 125Wpp or 250Wpp each, depending on the maximum allowed roof load rate (4kg/m2 to 8kg/m2), set onto brackets into a linear array (from 2 set adjacent to 48 panels set in 4 rows) • MPPT controller/charger (increase of energy harvest yield by 30-40%) • Inverter/charger (charger part optional for backup-charging) • Batteries, choice of PbSO4 or LiFePO4 (3 years or 20+ years life-cycle) • DC and AC cabling, mounting brackets, battery racks and shelves • Backup (choice of Eskom power or AC generator to provide backup power) • Large number of close proximity houses can be linked into a private “equalising” DC grid, effectively optimising the battery DoD, improving the life-cycle of the lead-acid batteries by 20-60% (from typical 3 years to 5+ years) • Flexible rooftop installation, either on a 30 degree sloping roof (tiles or corrugated sheets) or on flat-roofs (solid roof) • Single entry into the house’s SABS compliant DB, provides standard 1-phase 230V 50Hz power at up to 60A • Optional custom configuration 3-phase 400V 50Hz power can scale up to 300A per phase • Fully protected against lightning strike, overload, overheating, shorting, earthing etc.

  4. OPTIONS & PRICING GUIDE 11 models to choose from: Note: The above pricing isindicative, indexed at R8.70:USD1.00, exclusive of VAT, presented for the purpose of reference only, does not constitute an offer or solicit sales and does not impose a contractual obligation to purchase.

  5. AMBER • Designed to provide SABS standard 230V50Hz power to a typical RURAL house of up to 25m2 and consisting of 1-2 rooms. • 250Wpp array made of 2 x 125Wpp or 1 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • Integrated MPPT controller + charger + 1kW power inverter + 12V200Ah PbSO4 battery (6 x 2V200Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) • Daily energy harvest of 1kWh (minimum 750Wh in winter and up to 1.5kWh in summer) • Guaranteed to power the following house appliances (all can be used concurrently): • 2 to 6 x 11W ES lights, 2 can be left on over night • 1 x TV + DVD player or satellite decoder • 2 to 3 x cell-phone chargers • 1 x 110L under-counter fridge/freezer or up to 130L chest deep-freezer

  6. TOPAZ • Designed to provide SABS standard 230V50Hz power to a typical RDPhouse of up to 50m2 and having 1-2 bedrooms. • 500Wpp array made of 4 x 125Wpp or 2 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 1kW power inverter enclosed in a IP54 enclosure separate from the battery • The 24V200Ah PbSO4 battery (12 x 2V200Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) enclosed in own IP54 enclosure • Daily energy harvest of 2kWh (minimum 1.5kWh in winter and up to 2.5kWh in summer) • Guaranteed to power the following house appliances (not concurrently useable): • 4 to 6 x 11W ES lights, 2 can be left on over night • 1 x up to 32” LCD TV, DVD player and satellite decoder * • 2 to 3 x cell-phone chargers • 1 x 110L under-counter fridge/freezer or up to 130L chest deep-freezer • 1 x small microwave oven * • 1 x kettle * • 1 x steam iron * • 1 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer * * These appliances can only be used one at a time – failure to adhere to the stated limitation will cause the inverter’s built-in electronic circuit breaker to trip, requiring manual reset.

  7. OPAL • Designed to provide SABS standard 230V50Hz power to a typical LOW-COSThouse of up to 100m2 in size and having 1-2 bedrooms. • 1kWpp array made of 8 x 125Wpp or 4 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 2kW power inverter enclosed in a IP54 enclosure separate from the battery • The 48V200Ah PbSO4 battery (24 x 2V200Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) enclosed in own IP54 enclosure • Daily energy harvest of 4kWh (minimum 3kWh in winter and up to 5kWh in summer) • Guaranteed to power the following house appliances (not concurrently useable): • 5 to 10 x 11W ES lights, 4 can be left on over night • 1 x up to 42” LCD TV, DVD player and satellite decoder • 2 to 3 x cell-phone chargers • 1 x up to 230L fridge/freezer or up to 250L chest deep-freezer • 1 x small microwave oven * • 1 x kettle * • 1 x steam iron * • 1 x vacuum cleaner (not to exceed 800W) * • 2 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer * • 1 x Automatic washing machine (strictly no dry function) ** * These appliances can only be used one at a time – failure to adhere to the stated limitation will cause the inverter’s built-in electronic circuit breaker to trip, requiring manual reset. ** The washing machine must be at least A+ energy rated and connected to both hot and cold water source – no energy is provided for heating the water with electricity

  8. SAPPHIRE • Designed to provide SABS standard 230V50Hz power to a typical TOWNHOUSEof up to 200m2 in size and having 2-3 bedrooms. • 2kWpp array made of 8 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 3kW power inverter enclosed in a IP54 enclosure separate from the battery • The 48V400Ah PbSO4 battery (24 x 2V400Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) enclosed in own IP54 enclosure • The 48V200Ah LiFePO4 battery (16 x 3.2V200Ah cells), guaranteed to endure over 8,000 charge-discharge cycles (minimum 20 years of useful life expectancy, practical limit of 25+ years) enclosed in own IP54 enclosure • Daily energy harvest of 8kWh (minimum 6kWh in winter and up to 10kWh in summer) • Guaranteed to power the following house appliances (not concurrently useable): • 10 to 15 x 11W ES lights, 4 can be left on over night • 1 x up to 50” LCD TV, DVD player and satellite decoder • 2 to 5 x cell-phone or other chargers / power adaptors • 1 x up to 320L fridge/freezer or up to 300L chest deep-freezer • 1 x microwave oven (including grill/convection) * • 1 x sandwich maker* • 1 x kettle * • 1 x steam iron * • 1 x vacuum cleaner (not to exceed 1200W) * • 2 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer * • 1 x Automatic washing machine (strictly no dry function) ** • 1 x Dishwasher ** * These appliances can only be used one or maximum two at a time – failure to adhere to the stated limitation will cause the inverter’s built-in electronic circuit breaker to trip, requiring manual reset. ** The washing machine and the dishwasher must be at least A+ energy rated and connected to both hot and cold water sources – no energy is provided to heat the water with electricity

  9. EMERALD • Designed to provide SABS standard 230V50Hz power to a typical CLUSTER house of up to 300m2 in size and having 2-4 bedrooms. • 3kWpp array made of 12 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 5kW power inverter enclosed in a IP54 enclosure separate from the battery • The 48V500Ah PbSO4 battery (24 x 2V500Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) enclosed in own IP54 enclosure • The 48V300Ah LiFePO4 battery (16 x 3.2V300Ah cells), guaranteed to endure over 8,000 charge-discharge cycles (minimum 20 years of useful life expectancy, practical limit of 25+ years) enclosed in own IP54 enclosure • Daily energy harvest of 12kWh (minimum 10kWh in winter and up to 15kWh in summer) • Guaranteed to power the following house appliances (not concurrently useable): • 20 to 30 x 11W ES lights, 10 can be left on over night • 1 x up to 50” LCD TV, DVD player and satellite decoder, up to 2 x 32” LCD TV in bedrooms • 2 to 5 x cell-phone or other chargers / power adaptors • 1 x up to 620L fridge/freezer (double-door) and up to 300L chest deep-freezer • 1 x microwave oven (including grill/convection) * • 1 x sandwich maker* • 1 x kettle * • 1 x steam iron * • 1 x vacuum cleaner (not to exceed 1800W) * • 2 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer * • 1 x Automatic washing machine (strictly no dry function) ** • 1 x Dishwasher ** • 1 x 0.75hp swimming pool pump and 2x55W pool light • 1 x 0.5hp Jacuzzi pump ** * These appliances can only be used one or maximum two at a time – failure to adhere to the stated limitation will cause the inverter’s built-in electronic circuit breaker to trip, requiring manual reset. ** The washing machine and the dishwasher must be at least A+ energy rated and connected to both hot and cold water sources – no energy is provided to heat the water with electricity

  10. RUBY • Designed to provide SABS standard 230V50Hz power to a typical ESTATE house of up to 500m2 in size and having 3-5 bedrooms. • 5kWpp array made of 20 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 5kW power inverter enclosed in a IP54 enclosure separate from the battery • The 48V800Ah PbSO4 battery (24 x 2V800Ah deep-cycle cells), guaranteed to endure over 1,200 charge-discharge cycles (over 3 years of useful life expectancy, practical limit of 5+ years) enclosed in own IP54 enclosure • The 48V520Ah LiFePO4 battery (32 x 3.2V260Ah cells), guaranteed to endure over 8,000 charge-discharge cycles (minimum 20 years of useful life expectancy, practical limit of 25+ years) enclosed in own IP54 enclosure • Daily energy harvest of 20kWh (minimum 15kWh in winter and up to 25kWh in summer) • Guaranteed to power the following house appliances (typical use): • 20 to 30 x 11W ES lights, 10 can be left on over night • 1 x up to 50” LCD TV, DVD player and satellite decoder, up to 2 x 32” LCD TV in bedrooms • 2 to 5 x cell-phone or other chargers / power adaptors • 1 x up to 620L fridge/freezer (double-door) and up to 300L chest deep-freezer • 1 x microwave oven (including grill/convection) • 1 x sandwich maker • 1 x kettle • 1 x steam iron • 1 x vacuum cleaner (not to exceed 2000W) • 2 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer • 1 x Automatic washing machine (strictly no dry function) * • 1 x Dishwasher * • 1 x 0.75hp swimming pool pump and 2x55W pool light • 1 x 0.5hp Jacuzzi pump * • 1 x 9000 Btu split-unit air-conditioning (careful use – danger of depleting the daily budget!) * These appliances must be at least A+ energy rated and connected to both hot and cold water sources – no energy is provided to heat the water with electricity – failure to adhere to this limitation will result in rapid depletion of the energy budget.

  11. DIAMOND • Designed to provide SABS standard 230V50Hz power any MANSION of size exceeding 1000m2 and having 5+ bedrooms. • 10kWpp array made of 2 x 20 x 250Wpp (-0% / +10%) panels with NOCT = 63deg C, designed for the harsh South African sun. • MPPT controller + charger + 3 phase 15kW power inverter enclosed in a IP54 enclosure separate from the battery • The 48V1400Ah LiFePO4 battery (32 x 3.2V700Ah cells), guaranteed to endure over 8,000 charge-discharge cycles (minimum 20 years of useful life expectancy, practical limit of 25+ years) enclosed in own IP54 enclosure • Daily energy harvest of 40kWh (minimum 35kWh in winter and up to 45kWh in summer) • Guaranteed to power the following house appliances (typical use): • 30 to 50 x 11W ES lights, 10 can be left on over night • 2 x up to 50” LCD TV, DVD player and satellite decoder, up to 4 x 32” LCD TV in bedrooms • 2 to 5 x cell-phone or other chargers / power adaptors • 1 x up to 620L fridge/freezer (double-door), 1 x up to 250L fridge/freezer and up to 300L chest deep-freezer • 2 x microwave oven (including grill/convection) • 1 x sandwich maker • 2 x kettle • 1 x steam iron • 1 x vacuum cleaner (any size) • 2 x Laptop or Desktop computer with LCD screen, 1 x colour inkjet M/F printer • 1 x Automatic washing machine (with dry function) * • 1 x Dishwasher * • 1 x 1hp swimming pool pump and 2x55W pool light • 1 x 0.5hp Jacuzzi pump * • Up to 4 x 9000 Btu split-unit air-conditioning or 1 x 24,000 Btu and 2 x 9000 Btu (careful use – danger of rapid depleting the budget) * These appliances must be at least A+ energy rated and connected to both hot and cold water sources – no energy is provided to heat the water with electricity – failure to adhere to this limitation will result in rapid depletion of the energy budget.

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