Regulation about equipment in lofts ie inverters

Exactly, its what we all consider to be acceptable risk! Working next to say open water 3M deep and no barrier/fence and the swimmer and non-swimmer will have diffrent views on the risk.

I like your analogy with HP and mains gas supply, very good I did like that thought. I suppose it is because going back in history (Town gas and carried tin pipes within houses!) and then mains natural gas that we did have those catastrophic explosions and materials, method of install standards and dare I mention it, only competent installation and service and maintenance technicians carrying out work on those systems. The demise of individuals and families in properties due to poor combustion, flues and carbon monoxide poisoning.

Asbestos used without a thought for safety until people starting becoming unwell and passing away.

So technology and new materials and inventions always come first, then standards, procedures follow on, usually after people understand in the "Rush" to get the product to market and a profit some risks were not fully understood, identified or considered.

Im more than happy with my mains gas supply etc in my dwelling, because of the "Learning curve" to get it safe ALARP.

Yes, being a pessimist I will stand back and watch what unfolds with new materials and equipment.

Cheers GTB 

Well, yes. Many years ago, a neighbour would not have gas in his house.

Then of course, we had open fires with the risk of setting fire to a polyester nightgown, or falling into it, etc. However, we also learned about fireguards and not to play with matches.

My house used to be lit by gas, which was made on the premises - mains gas had not yet reached the parish.

Historically, the reference points for comparison against gas were candles for lighting and solid fuel fires or stoves for cooking and heating, by comparison gas was a big improvement, easier to light and use, cleaner burning and the appliances were generally safer. And of course the risk from leakage is reduced by gas having an odorant, so people smell it and take action. Plus today, modern gas appliances typically have loss-of-ignition shut-offs, some appliances have oxygen monitoring and carbon monoxide detectors are readily available.

Electricity is and remains the superior form of energy, but of course in Britain and with the way we run and regulate our electricity system and industry, it's significantly more expensive that gas - with electricity around 4x the cost of gas, gas remains the more competitive energy type for many applications.