# Virtual Battery Allocation for Aggregator

<div align="left"><img src="https://1165931685-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUbDQx7leHsTF4wXWth5S%2Fuploads%2Fgit-blob-3030b66d9131d47e8ff8bb27fd8589ffacb979e6%2Ftips.png?alt=media" alt="" width="169"></div>

* <mark style="color:blue;">This feature is exclusively available in Sweden.</mark>
* <mark style="color:blue;">This feature can only be set up when batteries are configured within the power station.</mark>
* <mark style="color:blue;">The function enables virtual partitioning of ESS into two independent operational units: The virtual battery can participate in CheckWatt VPP's frequency regulation services, Remaining capacity continues to be optimized by Sigen algorithm</mark>

<figure><img src="https://1165931685-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUbDQx7leHsTF4wXWth5S%2Fuploads%2Fgit-blob-ce3343cd39ca6d510dd497e86bc7063c950a6874%2FMSA1CM00078-%E5%82%A8%E8%83%BD%E5%88%86%E8%BA%AB.png?alt=media" alt=""><figcaption></figcaption></figure>

<table><thead><tr><th width="75.55560302734375" align="center">No.</th><th width="245.888916015625">Parameter name</th><th>Description</th></tr></thead><tbody><tr><td align="center">1</td><td>Virtual Battery Allocation for Aggregator</td><td>When set to <img src="https://1165931685-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FUbDQx7leHsTF4wXWth5S%2Fuploads%2Fgit-blob-fba4ade54497da3aaa645eb7c16feff5ac68cbc2%2Fimage%20(1)%20(1)%20(1).png?alt=media" alt="">, configurable parameters for the Aggregator-dispatched virtual battery become available.</td></tr><tr><td align="center">2</td><td>Total Battery Capacity</td><td>Total battery capacity of the energy storage system.</td></tr><tr><td align="center">3</td><td>Virtual Battery Capacity</td><td><p>Configure virtual battery capacity allocated for Aggregator dispatch.</p><p>（Virtual Battery Capacity≤Total Battery Capacity）</p></td></tr><tr><td align="center">4</td><td>Allocation Ratio for Aggregator</td><td>The percentage of virtual battery capacity relative to total battery capacity, quantifying dispatch rights allocation.</td></tr><tr><td align="center">5</td><td>Inverter Rated Max Active Input Power</td><td>Maximum allowable output power of the inverter.</td></tr><tr><td align="center">6</td><td>Inverter Max Active Input Power</td><td><p>Maximum inverter power during virtual battery charging.</p><p>（Inverter Max Active Input Power≤Inverter Rated Max Active Input Power, Inverter Max Active Input Power≥Battery Max Charging Power）</p></td></tr><tr><td align="center">7</td><td>Inverter Rated Max Active Output Power</td><td>Maximum allowable output power of the inverter.</td></tr><tr><td align="center">8</td><td>Inverter Max Active Output Power</td><td><p>Set the maximum inverter output power allocated to the Aggregator-dispatched virtual battery.</p><p>（Inverter Max Active Output Power≤Inverter Rated Max Active Output Power, Inverter Max Active Output Power≥Battery Rated Max Discharging Power）</p></td></tr><tr><td align="center">9</td><td>Battery Rated Max Charging Power</td><td>Maximum allowable charging power of the battery.</td></tr><tr><td align="center">10</td><td>Battery Max Charging Power</td><td><p>Set the maximum inverter output power allocated to the Aggregator-dispatched virtual battery.</p><p>（Battery Max Charging Power≤Battery Rated Max Charging Power, Battery Max Charging Power≤Inverter Max Active Input Power）</p></td></tr><tr><td align="center">11</td><td>Battery Rated Max Discharging Power</td><td>Maximum allowable discharge power of the battery</td></tr><tr><td align="center">12</td><td>Battery Max Discharging Power</td><td><p>Configure the maximum discharge power limit for the Aggregator-dispatched virtual battery.</p><p>（Battery Max Discharging Power≤Battery Rated Max Discharging Power， Battery Max Discharging Power≤Inverter Max Active Output Power）</p></td></tr></tbody></table>

### Virtual Battery Setting

<table><thead><tr><th width="71.111083984375" align="center">No.</th><th width="190.3333740234375">Parameter name</th><th>Description</th></tr></thead><tbody><tr><td align="center">1</td><td>Operational Mode</td><td>Configure virtual battery operating mode.</td></tr><tr><td align="center">2</td><td>Charging Cut-off SOC</td><td>Terminate charging when battery reaches the preset value (e.g. 80%) to prevent overcharging and extend battery life. The setting shall not exceed the system's charge termination SOC.</td></tr><tr><td align="center">3</td><td>Discharging Cut-off SOC</td><td>Discharge termination activates when battery reaches the preset threshold (e.g. 50%) to prevent over-discharge and maintain battery health. The setting shall not fall below the system's discharge cutoff SOC.</td></tr></tbody></table>
