I wrote an article for Tarisio’s Carteggio Webzine about Computer Vision applied to instrument recognition!

Shiny EV explorator app

Most car makers have now invested heavily into Electric Vehicles.

You have :

small ones
large ones. Too large if you ask me
mainly large ones

But the larger the car, the heavier usually. Heavy cars are less efficient because they need more energy to accelerate than lighter cars. But with electric cars, there is also the question of the range. EV batteries are heavy compared to ICE fuel and tank. Hence if you want to build an EV with a long range, you might encroach on your efficiency.

To navigate these questions and compare what’s on the market I built a shiny app with data we gathered at Pod Point. We use it internally to identify global trends or as a benchmark.

Check it out at : https://pod-point.shinyapps.io/EV_explorator/

ev_explo_app_snippet

12 août 2018 Benoît Fayolle

Small Wind + Storage Offgrid Fixing

I recently worked on a small offgrid system for a remote house in the mountains of Provence in south of France.

The setup included a black 600 wind turbine, photovoltaic solar panels, lead acid batteries and a 220V inverter for the house electrical supplies.

The battery charger was out of service and the wind turbine had fell off it’s mast after having being washed by the mistral wind for years on.

We dismantled the whole thing because, at the crash of the turbine, the 3-phase wires had unsolded from the brass rings of the yawing sytem. Then we designed a part (from scraped car transmissions) to interface the mast to the turbine body and soldered on the grounded mast.

I designed a new regulation system based on a Tristar TS-45 in diversion mode with a tailored load resistor arrangement. This strategy is similar to the one Hugh Piggott recommends on his blog.