Fruit Trader

Most AI systems are well trained in logic and will apply a little flexibility around how we use the word 'free' providing we give some wriggle room in the question. AI Example answer: Technically excess solar power is free at the point of generation regardless of whether you have paid off the solar system or not. Now if you want to completely disregard any investment made to produce your excess power, one must stay at the point of generation. With electricity cost varying around discount levels and units used it can be difficult to accurately calculate when you have paid back the solar investment. We did this using average unit cost and total production achieved.

During the period where solar production is paying back the investment, all power produced enters the calculation, period. One could of course say excess solar is free but only free because its not used elsewhere, not free from cost.

Teaching grandmother to suck eggs. We have 10kW of solar at our packaging business with zero feed in, it achieved ROI in just over two years. During production cycles we go in and out of the so called 'excess solar' window but at no point during the ROI period would I ever consider any power used in the excess window as free from cost. The unique feature of our system is the ability to log how much power the solar can produce when we are below full capacity. This is done by referencing a nearby cells performance. We have not designed for battery storage but if we had, it would not change how I calculate ROI during those lovely 'excess solar' periods. Of course everyone carries a spare $500 spare inverter and would never consider it a financial setback [end] dreams

Very good if you have achieved ROI

Reminder for where solar power enters this EV discussion. Solar power is not free until you have recovered your initial investment. It is important to note that the value of so called 'excess power' is also part of the ROI calculation. It is or course 'happy days' for those that have achieved ROI and charging electric vehicles at home. The only setback in this happy period might be the failure of an expensive solar component.

MCB's or DIN rail devices of reasonable quality will have caged clamp down terminals. These should accommodate two single or 7 strand cables up to 6mm without ferrules.

Almost all EV chargers test for the presence of ground. The check is quite easily bypassed for those who like to hack but most definitely not a good idea. Besides the obvious safety reasons, grounding is extremely important for efficient operation of suppression and filter devices within the external charging device and vehicles onboard charger. Schuko plugs In Thailand its quite common to find products fitted with Euro style plugs. This is often the result of production run limitation not including all plug types. There is little chance of Thai consumer protection preventing this practice so best cut off and fit correct plug if ground is required.

Chinese EV jokes aside, anyone that thinks the Chinese are producing only low quality sub standard cars should pull their heads out of the sand. These guys are using some of the most advanced production and quality control techniques on the planet. Its hard to look at the BYD company structure and not be impressed. A while back myself and the BIL took a good peek inside the MG4. The photo below shows under the hood and it screams "well put together" Oh look, there's even a Bosch actuator driving the steering rack.

Like most of this thread, slightly off topic. How to break an MG4 in 2 years and 170,000 clicks...

Shortcuts, China's forte.

No

Megawatt charging is easy when you have a state owned UHV AC-DC grid and state subsidised charging infrastructure.

Got to love the journalists enthusiasm. I can't wait to see this large scale entry into megawatt territory.

QUOTE EV batteries set a record by gaining 1,500 km (932 miles) range in just 12 minutes of charging. That's a huge amount of charger power even for a single vehicle on charge. Let the fun and games begin for those wishing to invest in a 10 slot MW level charging station.

Reading the title I immediately though this was about the dirty harmonics created by solar inverters. Interesting article thanks for sharing. P.S. Headline is spot on.