Posts tagged as off-grid

Battery energy storage technologies for off-grid and transport applications

Energy storage systems play a crucial role in off-grid applications globally. Although various energy storage systems exist, this article considers different battery technologies for their suitability for off-grid and electric vehicle applications. Off-grid electricity can be defined as a stand-alone power system or mini-grid to typically provide a small community with electricity without the support […]

Energy storage units for Botswana

UK energy storage company RedT Energy has sold 14 of its 40 kWh modules to an unnamed Botswana-based customer for use at communications infrastructure sites across the country. The company’s CEO,  Scott McGregor, says that this sale represents a sizable commercial order for the company after deploying its initial units in South Africa. NcGregor says he […]

Powering Africa off-grid

  Cummins Power Generation specialises in the design and manufacture of pre-integrated generator sets (gensets) from 8  to 3300 kVA. Off-grid solutions are based on the specific needs of the operation or application in question, classed generally as either “standby” or “prime”. Standby generators provide power in the event of grid failure, while prime solutions are […]

Rethinking energy, 2017

  Renewable energy is a fundamental and growing part of the world’s ongoing energy transformation. Governments all over the world are joining that consensus. The use of renewables is their prime choice for enhancing access to affordable, reliable and cleaner sources of modern energy services. This is the executive summary of IRENA’s new report “REthinking […]

Off-grid and mini-grid market outlook, Q1 2017

  This is the inaugural issue of a quarterly assessment of the latest developments in distributed energy and electrification in emerging or remote markets. The most noteworthy recent development has been two investments from Africa-focused private equity funds in pay-as-you-go solar home system companies, which are increasingly viewed as a new category of infrastructure investment. […]

Suspect solar panels stunt growth of community crèche

  The opening of a community crèche as reported in October 2014 (www.ee.co.za/article/shaping-future-roots.html), was greeted with great expectations. The crèche is regarded as a major benefit the community and as a successful social upliftment programme. The performance of the main solar power system has been less than encouraging, and has affected the functioning of the […]

Protecting off-grid PV systems

  There are many studies on the short circuit behaviour of grid connected PV and renewable energy systems but not many on the protection of off-grid PV (OGPV) systems. Many national wiring codes are beginning to include protection of PV systems, but the subject is neither well nor widely understood. This article covers the protection […]

Energy storage to reach 40 GW by 2022

  The rapid growth of intermittent renewables, especially solar PVs, has made energy storage a pressing priority. While consumers with rooftop PVs look forward to the day when they can store their excess generation during sunny periods for later use, utilities fear that the fate the landline telephone companies, which lost millions of customers to […]