Hilton Hunkin Senior Application Engineer SMA Solar Technology South Africa

Hilton Hunkin Senior Application Engineer SMA Solar Technology South Africa

Sunny Island Load Shedding Flexible energy self-storage: Covering zero export to grid SUNNY ISLAND ON GRID, OFF GRID APPLICATION: UNDER NRS097-2-1, SOUTHAFRICA SMA Solar Technology AG

SMART SOLUTIONS : South Africa SMA s Energy Management and Storage Solutions Basic System Intelligent System Integrated Storage System Flexible Storage System Commercial System Sunny Boy Energy Management Inverter integrated battery PV inverter and battery inverter Energy Management Only Sunny Boy Self consumption: up to 30% Reduction of energy costs up to 30% Home Manager + RC socket Self consumption: up to 45% Reduction of energy costs up to 45% SB Smart Energy Self consumption: up to 55% Reduction of energy costs up to 52% 8 Different solutions for different customer requirements SB + Sunny Island Self consumption: up to 65% Reduction of energy costs up to 57% Energy Manager + I/Os Self consumption: No feedin Significant reduction of energy costs 8 Energy Management will drive the solar business in most countries worldwide 3

SMART SOLUTIONS : South Africa SUNNY ISLAND for increased self-consumption SB SE: Combination of PV Inverter and Battery Bi-directional grid connected battery storage system: Flexible capacity Blackout: Sunny Island creats an island grid -> Loads are served by battery and available solar power. Link Internet: http://www.sma.de/en/home-systems/solar-system-smart.html http://files.sma.de/dl/20472/fss-is-en-40w.pdf Video: https://www.youtube.com/watch?v=phkzx2kpjbg Hilton Hunkin, SMA South Africa Bi-directional grid connected battery storage system: Capacity 2kWh Blackout: SB Smart Energy stopps working -> No power from battery system Link Internet: http://www.sma.de/en/home-systems/solar-systemsmart.html Video: https://www.youtube.com/watch?v=phcvuyffzmg 4

SMART HOME OPTIONS : South Africa Sunny Island : Technical Data Requirements : Standard home Approach with SUNNY ISLAND Home Manager: Load manager to increase self consumption Applicable weather data for all countries worldwide Regulations for EMC / Communication in ZA: Sunny Island: Grid management unit Regulation for utility interface : In line with NRS097-2- 1:2010 In line with New NRS097-2- 1:2013 5

SMART HOME OPTIONS : South Africa SMA Sunny Homer Manager Technical Data Interfaces SMA Bluetooth / Speedwire Quantity of inverters max. 12 Quantity of RC sockets max. 10 > Innovative Intelligent load management e.g. via SMA radio-controlled sockets > Easy-to-Use Plug & play commissioning and free standard access to Sunny Portal > Transparent Overview of all electric energy flows in the home > Flexible Easily combinable with SMA Smart Home components Accessories > SMA radio-controlled socket > SMA Energy Meter 8 The control center for smart energy management 6

SMART HOME OPTIONS : South Africa SMA Sunny Homer Manager > High performance - 3-phase reading, bidirectional meter with SMA Speedwire interface for 3-/1-phase measuring > Support of current transformers for application >63 A > Standard Ethernet cable for fast Speedwire communication > Flexible - Compact housing Technical Data Interfaces Speedwire > Easily and flexibly combined with SMA Smart Home components > Quick plug and play installation and graphic Visualization of current measurement data in SUNNY PORTAL 8 Universal applicability independent from the existing metering system 7

SMART HOME OPTIONS : South Africa Basic Solution for Intelligent Energy Management Basic Solution for Intelligent Energy Management Use energy at the times when you produce it Switch your household appliances on at the right moment Control the machines (washing machine, dishwasher etc.) via radiocontrolled sockets 8

SMART HOME OPTIONS : South Africa Optimization of Self -Consumption > Live display of all energy flows in the home > Display shows recommended actions based on anticipated PV generation, load profile, and electricity rates > Straightforward overview for customers who can adjust their behavior accordingly 8 Recommended actions result in higher yield due to increased self-consumption

SMART HOME OPTIONS : South Africa Basic Solution for Intelligent Energy Management Sunny Home Manager Limitation of feed-in to a certain limit Example: 10% Limit Load PV-Generator 90% 50% 100% Sunny Home Manager Consumption meter 100% 60% 100% 60% 10% SUNNY BOY PV production meter Feed-in meter Grid utility 10

SOUTH AFRICA SUNNY ISLAND Application Examples : Straight Off Grid System Straight Off-Grid System PV array PV inverter Battery inverter Load Battery 1.Sunny Island forms and controls the stand-alone grid (battery, generator and load management) 2.PV array and PV inverter supply the stand-alone grid (AC-coupled) with electricity 3.Battery stores electricity 1 1

SOUTH AFRICA SUNNY ISLAND Application Examples : Off Grid System and Combustion Generator PV array PV inverter Combustion generator Battery inverter Load Battery > Sunny Island forms and controls the stand-alone grid (battery, generator and load management) > PV array and PV inverter supply the stand-alone grid (AC-coupled) with electricity > When the battery is empty, the combustion generator supplies the loads and charges the battery (grid-forming) 1 2

SOUTH AFRICA SUNNY ISLAND Application Examples : Off Grid System and Public Grid Off-Grid System and Public Grid PV array PV inverter Public grid Battery inverter Load Battery > Sunny Island forms and controls the stand-alone grid (battery, generator and load management) > PV array and PV inverter supply the stand-alone grid (AC-coupled) with electricity > When the battery is empty, the public grid supplies the loads and charges the battery. 1 3

SOUTH AFRICA SUNNY ISLAND Application Examples : Straight Back up System Battery inverter Power distribution grid Load Battery 1.In normal operation, the public grid supplies the loads and charges the battery 2.If the grid fails, the Sunny Island forms a stand-alone grid after a maximum of 30 ms, and supplies the loads 3.Hold-up time depends on battery capacity

SOUTH AFRICA SMA FLEXIBLE STORAGE SYSTEM WITH BATTERY-BACKUP FUNCTION Application Examples : Single Phase On line - Back Up Solution If the grid fails, the Sunny Island forms a stand-alone grid after a maximum of 30 ms, and supplies the loads Using the SMA Energy Meter reverse Power is controlled with Zero Export of power.

SMART COMMERCIAL OPTION : South Africa Commercial : Technical Data Cluster Controller : Active and Reactive Power Limitation control Applicable for all application with Genset Control Regulations for EMC / Communication in ZA: Sunny Island: Grid management unit Regulation for utility interface : In line with NRS097-2-1:2010 In line with New NRS097-2-1:2013 1 6

SMART COMMERCIAL OPTION : South Africa Zero Exporting Commercial : PV Plant

SMART COMMERCIAL OPTION : South Africa Zero Exporting Commercial : PV Plant AC-Distibution AC Grid connection 25 m Measurement data acquisition Setpoint transmission NAP

SMART COMMERCIAL OPTION : South Africa Technical Data : Measuring load Consumption 19

Commercial Application : South Africa Basic Solution for Intelligent Energy Management Example: 25% Limit Load PV-Generator 75 45% % 100% Sunny Home Manager Consumption meter 100% 70% 70% 100% 25% Sunny Tripower PV production meter Feed-in meter Grid utility 20

Commercial Application : South Africa Basic Solution for Intelligent Energy Management Example: 0% Limit Load PV-Generator 100 0% % 100% Sunny Home Manager Consumption meter 100% 0% 0% 100% 0% Sunny Tripower PV production meter Feed-in meter Generator 21

SOUTH AFRICA SMA FLEXIBLE STORAGE SYSTEM WITH BATTERY-BACKUP FUNCTION Application Examples : 3 Phase Back up to single On line - Back Up Solution If the grid fails, the Sunny Island forms a standalone grid after a maximum of 30 ms, and supplies the loads

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