The following table compares some of the battery systems available in the UK. Prices are exclusive of VAT and as of June 2019, installing a battery together with a Solar PV system costs an additional 5%VAT; whereas fitting a battery to a solar system at a later date (retro-fitting) would normally cost 20% VAT.
| Solar Battery Storage Manufacturer | Charge/ Discharge (kW) | Storage capacity (kWh) | Useable capacity (kWh) | Cycles Warranty | Cost of Install £ |
£/kWh of storage capacity | Warranty | Powercut Backup | AC/ DC Coupled |
| Solax Hybrid X1 Triplepower 6.3kWh | 1.7 | 6.3 | 5.67 | 6000 | 4,238 | 747 | 5 years | No | DC |
| Puredrive Energy Storage 5kWh | 2/3 | 5 | 4.5 | 10000 | 4,407 | 979 | 10 years | No | AC |
| Moixa 4.8kWh | 2.4 | 4.8 | 3.84 | 6000 | 4,450 | 1,158 | 10 years | No | AC |
| Solis/BYD 7kWh | 3 | 7 | 5.6 | 2842 | 4,944 | 882 | 10 years | No | DC |
| Alpha Smile 14.5kWh | 3 | 14.5 | 13.92 | 2920 | 5,600 | 402 | 5 years | No | AC |
| Puredrive Energy 10kWh | 3.5/5 | 10 | 9 | 10000 | 6,087 | 676 | 10 years | No | AC |
| SolarEdge LG Chem RESU 10 | 5 | 9.8 | 9.3 | Unlimited | 6,100 | 655 | 10 Years | No | DC |
| Sonnen 9.43 – 7.5kWh | 3.3 | 7.5 | 6.75 | 10000 | 6,215 | 920 | 10 years | Extra cost | AC |
| Powervault 3 – 8.2kWh | 3.3/5.5 | 8.2 | 8.2 | 6000 | 6,360 | 775 | 10 years | No | AC |
| Tesla Powerwall | 5 | 13.5 | 13.5 | Unlimited | 7,799 | 577 | 10 years | Yes | AC |
| Powervault 3 – 12.3kWh | 3.3/5.5 | 12.3 | 12.3 | 6000 | 8,090 | 657 | 10 years | No | AC |
| Sonnen 9.43 – 15kWh | 3.3 | 15 | 13.5 | 10000 | 8,835 | 654 | 10 years | Extra cost | AC |