On-grid or grid-tie solar systems are by far the most common and widely used by homes and businesses. These systems do not need batteries and use either solar inverters or micro-inverters and are connected to the public electricity grid. Any excess solar power that you generate is exported to the electricity grid and you usually get paid a feed-in-tariff (FiT) or credits for the energy you export.
An off-grid system is not connected to the electricity grid and therefore requires battery storage. Off-grid solar systems must be designed appropriately so that they will generate enough power throughout the year and have enough battery capacity to meet the home’s requirements, even in the depths of winter when there is generally much less sunlight.
The UK has a large number of public EV charging networks, with some offering national coverage and others only found in specific regions. The major UK-wide networks include BP Chargemaster Polar, ubitricity, Ecotricity, Pod Point, Tesla, InstaVolt, and Charge Your Car.
Batteries and other energy storage devices store energy so that it can be used when needed. In a stand-alone power system, the energy stored in batteries can be used when energy demand exceeds the output from renewable energy sources like solar (e.g. on a cloudy day) and wind (e.g. on a still day).
With our unrivalled solar PV expertise, R&R Engineering Associates can give peace of mind to any Pakistan solar PV array owner regardless of who installed the system. From our experience of solar we recommend, as a minimum, an annual inspection visit so your solar PV operates at its
optimum performance each year, protecting both your return on investment and contributing to your electrical compliance regime.