Battery Storage
Five Tips for setting up a Solar Battery Storage
1. Adding a Battery to my existing Solar System
2. Sizing a Battery system
3. Pricing a Battery System
4. Single Phase or Three Phase power supply
5. Going totally Off Grid with a Battery Storage System
A Guide to Choosing the Right Solar Battery Storage system – E-Book Download
Adding a Battery to my existing Solar System
Adding a battery to an existing solar system depends on how old your solar system is and what type of inverter you have.
A Solar system over 5 years old would not be worth adding a new battery to. This is because of battery to inverter compatibility issues.
All new components added to a solar system must be current on the Clean Energy Council Australia (CEC) list of approved products.
Any of the solar components on the existing solar system that are not on the CEC list of approved panels, the solar system can’t be added to. Unless everything in the solar system is up-to-date.
In this case, it is better to take off the old system and put on a new system with a new warranty.
With a Hybrid (battery ready) inverter, it is quite straight forward to add battery storage and additional solar panels.
When adding a Battery, additional panels can be added to the solar system, if they are compatible with the existing solar panels.
This helps with charging the battery
AC Coupling Battery Storage to an Existing Solar System
An inverter that is not a Hybrid inverter can be AC coupled with an all-in-one battery system. These systems have their own Hybrid inverter built in, such as the Tesla Powerwall, or the Alpha ESS.
To AC couple an existing solar system,
the original inverter is left in place, that will increase the inverter capacity.
The maximum inverter capacity for a single-phase power supply is 5kW. This means the old inverter will have to be taken off so that the inverter capacity is not exceeded.
With a three-phase power supply, the maximum inverter capacity is 15kW.
These inverter capacity sizes refer to Western Australia, other states have different regulations.
Sizing a Solar Battery System
Sizing up a Battery System depends on two main factors.
1. The amount of Electricity storage required; to provide electricity for nighttime use, or provide power in a blackout for medical devices, refrigeration, internet etc.
2. The amount of solar panels required to provide power to charge up the batteries and supply power for the house during the day.
The type of battery systems chosen depends on the power supply – single or three-phase. This will determine the minimal amount of batteries that can be used.
It would be advisable to start with a 10kWh battery, as this will be enough for the average household’s nighttime usage.
Pricing a Home Battery Storage System
Setting up a Battery Storage system correctly is not cheap, but it is a worthwhile investment towards the future, helping to offset continuing rising electricity costs, as well as provide power for nighttime use and back up power for power outages.
Pricing a Battery Storage system depends on the type of the battery system chosen and the amount of battery storage required.
Visit our Spring Special Home Battery Storage Promotions page. CLICK HERE
FREE SMART METER installed with every Battery System installed until September 1st 2024.
A Smart Meter measures the solar energy production and the household energy consumption so that you can be more energy efficient and save money.
Single or Three Phase power supply
Yes! A single phase power supply is a lot cheaper and easier to set up than a three-phase power supply.
A three-phase power hybrid inverter is around $1100 more expensive than a single phase hybrid inverter. It is also more complicated to set up.
A true three-phase hybrid inverter will supply power from the battery to all three phases in the house.
Some three-phase hybrid inverters will only supply power back to one phase in a three-phase house. This has to be considered when choosing the inverter.
A three-phase power supply can have up to 15kW of inverter capacity and therefore a much larger system can be installed
Going totally Off Grid with a Battery Storage System
A special “Off Grid” inverter is required to go off grid, and the cost can be quite expensive.
In a rural area where there is no local power supply, going Off Grid is a viable option. Paying for Western power to install a transformer can be more expensive than setting up an off grid system.
Going totally Off Grid means sizing your battery storage so that you have enough power during the day and night. It is important to take into consideration battery storage for when the weather is not favourable for solar production.
Setting up an Off Grid system would easily cost $20,000 or more.
Visit our Spring Sale Off-Grid Battery Storage Promotions page
CLICK HERE
Battery Storage Systems
Five main Questions about Solar Battery Storage to Consider
1. Can I add a Battery to my existing Solar System?
2. What type of Battery will I need?
3. What is the price of a Battery System?
4. Does it matter if i have a Single phase or Three phase power supply?
5. Can go totally Off Grid with a Battery Storage System?
Can I add a Battery to my existing Solar System?
Yes and No is the short answer
It depends on how old your existing solar system is and what type of inverter you have.
With a Solar system over 5 years old, it may not be worth adding a new battery to an older solar system.
When adding to an existing solar system, all components of the solar system must be current on the Clean Energy Council Australia (CEC) list of approved products.
This means that if any of the components of the existing solar system that are not on the CEC list, the solar system can’t be added to without bringing everything up to date.
In this case it is better to take off the old system and put on a new system with a new warranty.
If the existing solar system is installed with a Hybrid (battery ready) inverter, then it is quite straight forward to add a battery system and additional solar panels.
When adding a Battery to a Hybrid inverter, additional panels may be added to the solar system to help with charging the battery if they are compatible with the existing solar panels.
AC Coupling a Battery System to an Existing Solar System
If the current inverter is not a Hybrid inverter, then it can be AC coupled with an all-in-one battery system that has its own Hybrid inverter built in, such as the SENEC V3 Home, or the Alpha ESS.
When an AC coupled battery system is connected to an existing solar system,
the original inverter is left in place which increases the inverter capacity for the property.
With a single-phase power supply, the maximum inverter capacity is 5kW, which means the old inverter will need to be taken off so that the inverter capacity is not exceeded.
With a three-phase power supply, this is no problem unless the total inverter size for three-phase exceeds the maximum capacity of 15kW
What size Battery will I need?
Sizing up a Battery System depends on two main factors.
How much Electricity storage is required This can be to provide electricity for night time use when the solar system is not generating power, or to make sure enough power is available in the event of a blackout to provide power for medical devices, refrigeration, internet etc.
The other consideration is the amount of solar panels available to provide power to charge up the batteries and to still supply power for the house during the day.
The type of battery systems chosen and whether it is single or three phase will determine the minimal amount of batteries that can be used.
It would be best to start with a 10kWh battery as this will offset the average households night time electricity usage.
What is the Price of a Battery System
Setting up a Battery Storage system properly is not cheap, but with electricity costs continuing to rise, the price would be best viewed as a worthwhile investment for offsetting electricity bills well into the future, as the cost of electricity continues to rise.
The price really depends on the type of the battery system chosen and the amount of battery storage required.
The prices below don’t include the Solar System or the Battery installation.
Battery installation needs to be assessed for each individual system and then the installation costs can be determined according to the ease or difficulty of the installation.
As a rule of thumb, around $1,000 to $1,500 would be a reasonable estimate for a battery installation.
AC coupled All in One systems
Alpha ESS Single Phase Battery System with a 5kWh battery added to an existing solar system – $4630.
The price for an additional 5kWh battery would be $2812
A German Senec (single or three phase) 5kWh All in one system added to an existing solar system $7300.
A 10kWh battery is the largest battery size for the Senec system, however two or more systems can be coupled together.
DC Hybrid Battery Systems
Fronius 5kW Single Phase Hybrid Inverter with 11Kwh Battery $12564
Sungrow 5kW Single Phase Hybrid Inverter with 9.6Kwh Battery $8032
SAJ 5kW Single Phase Hybrid Inverter with 10Kwh Battery $7286
Does it matter if I have a Single or Three phase power supply?
Definitely! A single phase power supply is a lot cheaper and easier to set up than a three phase power supply.
A three phase power Hybrid Inverter is a around $1100 more expensive than a single phase hybrid inverter and more complicated to set up.
A true three phase hybrid inverter will supply power from the battery to all three phases in the house.
There are some Three Phase Hybrid Inverters that will only supply power back to one phase in a three phase house, so this needs to be considered when choosing the inverter.
Can I go Fully Off Grid with a Battery Storage System?
Yes, you need a special Off Grid inverter and the cost can be quite expensive.
If there is power to your area then you cant disconnect. You can stop using the power but will still pay a supply charge.
If you are in a rural area and there is no local power supply, going Off Grid may be cheaper than paying for Western power to install a transformer to give you power.
Going totally Off Grid means sizing your battery storage supply so that you have enought power during the day and night, also taking into consideration storage for when the weather is not favourable for solar production.
Setting up an Off Grid system could easily cost $50,000 or more.
A smart meter measures the solar energy produced and your household power consumption so that you can be more energy efficient and save money.
FREE SMART METER installed with every Battery System installed until September 1st 2024.
Battery Storage Systems
Five main questions about Solar Battery Storage to consider
1. Can I add a Battery to my existing Solar System?
2. What type of Battery will I need?
3. What is the price of a Battery System?
4. Does it matter if i have a single phase or three phase power supply?
5. Can go totally Off Grid with a Battery Storage System?
A Guide to Choosing the Best Solar Battery Storage System
e-book Download
Can I add a Battery to my Existing Solar System?
Yes and No is the short answer
It depends on how old your existing solar system is and what type of inverter you have.
When adding to an existing solar system, all components of the solar system must be current on the Clean Energy Council Australia (CEC) list of approved products.
If the existing solar system is installed with a Hybrid (battery ready) inverter, then it is quite straight forward to add a battery system and additional solar panels.
When adding a Battery to a Hybrid inverter, additional panels may be added to the solar system to help with charging the battery if they are compatible with the existing solar panels.
AC Coupling a Battery System to an Existing Solar System
If the current inverter is not a Hybrid inverter, then it can be AC coupled with an all-in-one battery system that has its own Hybrid inverter built in,
such as the SENEC V3 Home, or the Alpha ESS.
When an AC coupled battery system is connected to an existing solar system,
the original inverter is left in place which increases the inverter capacity for the property.
With a single-phase power supply, the maximum inverter capacity is 5kW, which means the old inverter will need to be taken off so that the inverter capacity is not exceeded.
With a three-phase power supply, this is no problem unless the total inverter size for three-phase exceeds the maximum capacity of 15kW.
What size Battery will I need?
Sizing up a Battery System depends on two main factors.
How much Electricity storage is required.
This can be to provide electricity for night time use when the solar system is not generating power, or to make sure enough power is available in the event of a blackout to provide power for medical devices, refrigeration, internet etc.
The other consideration is the amount of solar panels available to provide power to charge up the batteries and to still supply power for the house during the day.
It would be best to start with a 10kWh battery as this will offset the average households night time electricity usage.
What is the Price of a Battery System?
Setting up a Battery Storage system properly is not cheap, but with electricity costs continuing to rise, the price would be best viewed as a worthwhile investment for offsetting electricity bills well into the future, as the cost of electricity continues to rise.
The price really depends on the type of the battery system chosen and the amount of battery storage required.
The prices below don’t include the Solar System or the Battery installation.
Battery installation needs to be assessed for each individual system and then the installation costs can be determined according to the ease or difficulty of the installation.
As a rule of thumb, around $1,000 to $1,500 would be a reasonable estimate for a battery installation.
AC coupled All in One systems
Alpha ESS Single Phase Battery System with a 5kWh battery added to an existing solar system – $4630.
A German Senec (single or three phase) 5kWh All in one system added to an existing solar system – $7300.
A 10kWh battery is the largest battery size for the Senec system, however two or more systems can be coupled together.
DC Hybrid Battery Systems
Fronius 5kW Single Phase Hybrid Inverter with 11Kwh Battery $12564
Sungrow 5kW Single Phase Hybrid Inverter with 9.6Kwh Battery $8032
SAJ 5kW Single Phase Hybrid Inverter with 10Kwh Battery $7286
Does it matter if I have a Single or Three Phase power supply?
Definitely! A single phase power supply is a lot cheaper and easier to set up than a three phase power supply.
A three phase power hybrid inverter is a around $1100 more expensive than a single phase hybrid inverter and more complicated to set up.
A true three phase hybrid inverter will supply power from the battery to all three phases in the house.
There are some Three Phase Hybrid Inverters that will only supply power back to one phase in a three phase house, so this needs to be considered when choosing the inverter.
Can I go fully Off Grid with a Battery Storage System?
Yes, but you need a special Off Grid inverter.
If there is power to your area then you cant fully disconnect from the power grid.
You dont have to use the grids power, but you will still pay a supply charge.
If you are in a rural area and there is no local power supply, going Off Grid may be cheaper than paying for Western Power to install a transformer to give you power.
Going totally Off Grid means sizing your battery storage supply so that you have enought power during the day and night, also taking into consideration storage for when the weather is not favourable for solar production.
Setting up an Off Grid system could easily cost $50,000 mark or more depending on how much battery storage you need.
Smart Meter
A smart meter measures the solar energy produced and your household power used so that you can be more energy efficient and save money.
FREE SMART METER installed with every Battery System installed until September 1st 2024.
Need help with setting up a Battery Storage System?
Setting up a Battery Storage System requires careful consideration to make sure you get what you are expecting.
We are located at
Unit 2 / 31 Christable Way, Landsdale, Perth, 6065.
Ph: 93025061 |Mob: 0401405442
sales@evosol.com.au | www.evosol.com.au
Need help with setting up a Battery Storage System?
Setting up a Battery Storage System requires careful consideration to make sure you get what you are expecting.
We are located at
Unit 2 / 31 Christable Way, Landsdale, Perth, 6065.
Ph: 93025061 |Mob: 0401405442
Need help with setting up a Battery Storage System?
Setting up a Battery Storage System requires careful consideration to make sure you get what you are expecting.
We are located at
Unit 2 / 31 Christable Way, Landsdale, Perth, 6065.
