Store your solar energy with a battery system in Portchester. Portchester is a historic suburb of Fareham, dominated by the impressive Roman-era Portchester Castle. Properties on the south-facing slopes of Portsdown Hill enjoy exceptional solar exposure, making Solent Solar installs Fox ESS, GoodWe and SigEnergy battery storage systems across Portchester (PO16) to help you use up to 85% of the electricity you generate.