Home battery as energy storage
For our energy storage solutions, we partner with Sessy. We understand that you want to know everything before considering a Sessy home battery! To keep you well informed, we have listed the most frequently asked technical questions, with answers, for you.
What is the output of a Sessy home battery?
The output of the integrated bi-directional inverter in the Sessy home battery solution is 2.2 kW during charging and 1.7 kW during supply. Should a consumer in the home need more, the power grid takes care of that, so you're never short of power. If you install more than one Sessy, the power scales with it.
What is the storage capacity of a Sessy home battery?
A Sessy home battery has a usable storage capacity of 5 kWh*. It is possible to install more Sessy's for a larger storage capacity. Per Sessy, you get 5 kWh of additional capacity.
5kWh from one Sessy is far too little, isn't it?
5kWh is an excellent capacity for an average household to offset evening and night consumption. For larger households and more consumers, Sessy can easily be expanded with more Sessy's. On a 'standard' 3x25A connection, up to 6 Sessy's can be placed with a total capacity of 30 kWh. *
What battery chemistry is used?
Sessy uses iron phosphate cells. This type of cell is also called LFP or LiFePO4 cell. Because of this, the Sessy home battery does not contain conflict minerals such as Cobalt and Manganese. This also makes Sessy safer than devices that contain li-ion (such as cars and electric bikes).
How does Sessy optimize my 'self-consumption'?
The term 'Self-consumption' refers to energy that you generate and use yourself, without sending it to the grid first. Sessy can increase that self-consumption by storing excess energy produced (energy that your solar panels generate, but that you cannot use directly yourself) in your home battery. The moment the solar panels no longer produce enough to cover your home consumption, Sessy deploys the stored energy. In this way, you avoid needing energy from the grid and thus increase your "self-consumption.
A few advantages for you at a glance:
1] Sessy saves energy
2] Is easy to use
3] Is brand-independent and thus can be used in any existing installation
4] Is scalable and thus can be expanded at any time to grow along with your energy needs
5] Is suitable for use with a dynamic energy contract due to smart software
6] 5-year warranty on the inverter, 10-year warranty on the battery!
7] Sessy is a Dutch product
Sessy is the only home battery on the market that pays for itself within its lifetime.
Based on current market conditions, a Sessy has a payback period of between 4 and 6 years (depending on contract type). That is well within the technical lifetime of Sessy and within the 10-year warranty period on the battery.
Specifications
| Battery | 5 kWh usable capacity |
| Power | 2.2 kW charge and 1.7 kW discharge |
| Dimensions (cm, w x h x d). | 44 x 50 x 20cm |
| Weight (Kg) | 46 kg |
| Battery type | Iron phosphate battery |
| Warranty | 5 years on the inverter, 10 years on the battery |
| Operating temperature | 0 - 40 °C |
| Noise level | 30 dB nominal |
| Guaranteed cycles | 6000+ |
| How many Sessy's do I need? | Per 2,000 kWh of consumption, we recommend 1 Sessy |
| Compatibility | Sessy home battery works both 1-phase and 3-phase inverters of any brand |
Be prepared for the future with this home battery from Sessy! For more information, visit sessy.com