Posts tagged as rooftop

NERSA’s regulations regarding small scale renewable energy embedded generation

  NERSA has issued a discussion document on small scale renewable embedded generation (SSREG) [1] for discussion on a possible regulatory framework for this sector of the market. This article summarises the main features of the document. The discussion document (DD) is primarily targeted at rooftop solar, a growing sector of the market, ranging from […]

Preventing system failure in solar PV systems

  It is vital for solar photovoltaic (PV) systems to accommodate the temperature fluctuations and environmental conditions to which they are typically exposed as these conditions often cause ongoing system failure. The difference between standard test conditions (STCs) and nominal operating cell temperature (NOCT) is of interest here as these values in PV modules determine […]

Lightning and surge protection for rooftop PV systems

  Apart from damaging solar photovoltaic (PV) modules, inverters and monitoring elecronics, lightning strikes also lead to field-based and conducted electrical interference. According to the South African Photovoltaic Industry Association (SAPVIA), photovoltaic (PV) is the fastest growing power generation technology in the world. More than 35 GW of PV is installed and operating worldwide, producing […]

Using smart storage to enhance rooftop solar performance

  Rooftop , or own generation, solar photovoltaic (PV) systems, are being installed by many commercial and industrial users, including mines, with the aim of reducing energy costs and increasing security of supply. What many users don’t realise is that the load profile results in unused energy which may be utilised to gain further advantages […]

Rooftop solar PV, an awakening giant

by Mike Rycroft, EE Publishers; Andreas Wagnaar and Barbara  Sabbione, Bosch Solar  Small to medium sized rooftop solar PV systems are being installed extensively in other countries, notably Germany, Japan and the US, where legislation is in place to support this technology, and where the PV industry has developed on the back of these programs. […]