@Hans 1- Wind is very dangerous.
Have you ever seen a wind turbine? Ever been to the top of one?
Building and maintaining a wind turbine requires complex work-at-height in a location deliberately chosen to have high winds, be far from habitation (thus rescue/hospital) and nearly always in places where the weather and visibility are highly changeable. On top of that, there's also the additional power lines that must be run out to the installations.
Offshore wind is far, far worse, but not included in the data up to 2007. (Few to no plants online.)
Rooftop Solar PV was unfortunately worse, as again it's work at height, and unfortunately the workers tend to be less well trained and protected and so have more accidents.
As of 2007, rooftop Solar PV, Hydroelectric and Wind were the three biggest direct killers per unit of energy generated.
If you include deaths due to mining/extraction accidents and estimates of deaths due to particulates, coal comes out as the most dangerous (mostly due to China mining practice), followed by oil then biofuels, gas, hydro, solar PV and wind. Nuclear is the safest by an order of magnitude.
Exclude China, and coal becomes safer than oil and hydro becomes safer than wind (mostly due to one accident in China that killed 171,000). Presumably China will slowly come down to this 'rest-of-world' level as their workforce safety improves.
Wind turbines are however getting more dangerous, as new ones are being built in 'marginal' conditions - eg offshore.