Battery Storage Systems
Battery energy storage is a powerful addition to any commercial solar PV system, helping your business make better use of the energy it generates. Pensdown supplies and installs fully integrated battery storage solutions, allowing you to capture excess solar power during the day and discharge it when grid demand (and prices) are highest.
Whether you're aiming to increase self-consumption, avoid peak-time import costs or introduce backup resilience for your site, we design every battery system around your load profile, space availability, and safety requirements. Our solutions range from compact three-phase storage for small business premises through to multi-rack systems for industrial sites.
We work with trusted brands such as Tesla, SunSynk, and Pylontech, and we install all supporting infrastructure — from isolation equipment and fire-rated containment to monitoring platforms and connection to your BMS.
As with solar panels, our battery storage systems are fully certified under MCS and installed to BS 7671 standards. We also advise on export limitation, battery degradation over time, load shifting, and how battery storage fits into wider ESG and Net Zero strategies.
Our long-term support io ensure your battery system stays safe and effective includes:
• Regular servicing
• Firmware updates
• Remote monitoring
Inverter Systems
Inverters are the brains of your solar PV system, converting DC electricity from your panels into usable AC power for your building. At Pensdown, we supply and install high-efficiency commercial inverters that offer exceptional reliability, accurate performance tracking and seamless integration with your wider electrical infrastructure.
We select the appropriate inverter model and capacity based on your system size, number of panel strings, voltage profile and whether battery storage is present. We offer string inverters for smaller commercial systems and central or hybrid inverters for larger or multi-functional arrays.
All inverters are installed with suitable surge protection, isolation equipment and integrated monitoring. We can link inverter data into your existing BMS platform, or provide a dedicated online dashboard that tracks generation, export levels and fault alerts in real-time.
Pensdown handles the full installation, testing and commissioning process, including DNO approvals, G99 testing (where required), and all certification. We also manage inverter placement and ventilation to maintain operating efficiency.
We only specify inverters with proven reliability records, typically offering a 10- to-20-year manufacturer warranty. If inverters require replacement or firmware updates later in life, our team is available for fast and expert support.
Our Accreditations
