1. 4.0 Markets and Applications

2. Training Overview Introduction to Greenfox Core Concepts of Sirius
Different Sirius models
Market Segments and Applications
Sizing for solar applications
Module Operation and Specifications

3. Solar Sizing
Solar is probably the most complex area where Sirius can be deployed. It is the area with the most variables in both consumption and generation. This document will focus on two types of solar systems. The first is energy storage systems (or surplus recovery systems), the second is off-grid. Off-grid poses the most challenges by far and we will focus extensively on how to optimize the design with Supercapacitors. If solar sizing is done correctly, supercapacitor systems will be significantly lower in both Capex and Opex.

4. Energy Storage Option LG Chem RESU Sunlight OPzS Sirius System Cost
Load details
Lights: Lounge, Kitchen, Entrance, Main BedR, Bedr 2, Bedr 3, 100W LED Flood DNS
Appliances: 55” Plasma TV, 55” LED TV, Fridge-Freezer x 2, Upright Fridge, Upright Freezer, Chest Freezer, DeLonghi Coffee Station, Dishwasher, Washing Machine, Toaster.
Pool Pump 750W
AC – Main Bedroom & Lounge
Underfloor Heating – Main Bathroom
Simulation parameters. Location: Pretoria Tariff: Residential Flat rate R2.22/kW.h Tariff escalation per annum: 10%
LG Chem RESU
Sunlight OPzS
Sirius
System Cost R R R
Rated Battery Capacity
6.5kW.h
23.71kW.h
7.1KW.h
Usable KW.h Daily
5.9kW.h
6.9kW.h
7.1kW.h
Battery Efficiency
87%
62%
99.1%
Monthly Battery Cost
R329.29
R376.92
R126.21
Daily Surplus Recovery
4.4kW.h
5.5kW.h
System Payback
11.3 Years
11.9 Years
10.0 Years
20 Year Saving R R R

5. Off-Grid System LG Chem RESU Sunlight OPzS Sirius System Cost
Load details
Lights: Lounge, Kitchen, Entrance, Main BedR, Bedr 2, Bedr 3, 100W LED Flood DNS
Appliances: 55” Plasma TV, 55” LED TV, Fridge-Freezer x 2, Upright Fridge, Upright Freezer, Chest Freezer, DeLonghi Coffee Station, Dishwasher, Washing Machine, Toaster.
Pool Pump 750W
AC – Main Bedroom & Lounge
Simulation parameters. Location: Pretoria Tariff: Generator as Main Supply Tariff escalation per annum: 10%
LG Chem RESU
Sunlight OPzS
Sirius
System Cost R R R
Rated Battery Capacity
26.0kW.h
67.5kW.h
7.1KW.h
Usable KW.h Daily
23.6kW.h
40.5kW.h
14.2kW.h
Battery Efficiency
87%
62%
99.1%
Battery & Elec Monthly
R875.00
R800.00
R350.21
System Payback
10.3 Years
9.8 Years
8.4 Years
20 Year Saving R R R

6. Learnings
Connecting multiple batteries in Parallel Check for voltage differences, as little as 1V difference can have a battery OC to equalize. Connecting units in series Charge up all the batteries to Vmax in parallel before connecting them in series Ideally a battery balancer should be connected as well Remember to remove equalization charge on chargers Capacitors do not enjoy OV Do not drain past 44.0V and leave for later If the balancing stops working, the charge retention is also gone. It will lose its charge in a few days. At 36V the safety contactor stops working in the normally open position. If you want to fly a battery you can do it for safety, but you are opening up the battery on the other Temperatures below 0°C Below 0°C capacitors lose surface area due to the shrinkage. If supercapacitors operate in extremely cold conditions, you will lose a bit of capacity. There is no permanent damage, as soon as the capacitor heats up again the surface area expands back to normal size.