Monthly Archives: June, 2015

The biggest questions ahead of Tesla’s battery conference and answers

June 18th, 2015 Posted by Energy Efficiency No Comment yet

Elon Musk, the star CEO of the electric car company Tesla Motors and the rocket company SpaceX, staged an elaborate event last month to unveil a new product. Not a sleek new luxury car. Not a rocket that can ferry people to Mars. A home appliance — a battery — that can be mounted on a garage wall and ignored. Here are the 7 biggest questions about Powerwall Tesla’s battery, and the answers brought by the conference.


How to stimulate the SA rooftop Photovoltaic (PV) market?

June 8th, 2015 Posted by Energy Efficiency, Renewable-energies No Comment yet

How to stimulate the SA rooftop Photovoltaic (PV) market without putting municipalities’ financial stability at risk ?

Today, embedded PV generators are at retail grid parity in South Africa, and are even cost-competitive to alternative new-builds. This competitiveness is due to a combination of drastically reduced prices for PV systems (-70/80%) and significantly increased retail relectricity tariffs (+130/150%) over the last 5 years. (more…)