Leaderboard

check with your contractor and SP on whether SINGLE PHASE 100A requires inspection or not. I may be wrong here as I know THREE phase 100A would require inspection. a single phase 100A at 230V will be at 23KVA 3 phase 60A at 400V would be at 41KVA 3 phase 100A at 400A would be at 69KVA from what I read, EMA requires anything more than 45KVA do have annual inspection. so a single phase 100A is only 23KVA so might not require annual inspection. but you need to determine if 100A is sufficient for your usage or not especially if you want to run aircon, induction cookers, etc all at the same time. for solar power sell back to grid, you will need to "pay" a transmission cost. for example if currently SP is selling you electricity at 23 cents per KW, when you sell back to them, the price you get from selling would be about 18 cents per KW after deducting the transmission cost. the numbers I provided are not the exact number but just to illustrate the point of transmission costs. since you are doing up your house now, just provision for an isolator for future use if you do not want to install solar panels now. else next time have to run wires would be more messy.

It takes around 8-10 years to break even and it’s not so easy but ask the sellers to take you through. As for 63a, this thread may help