It is easy to combine renewables into the grid, because wind and solar are uncorrelated and will balance each other in all circumstances. There is no need to manage the output with storage.

Reza showed a figure showing the variability in output of a solar PV panel on a cloudy day.  What was the change in output over 2 seconds that he focussed on?

Adding distributed generation within the distribution network will add problems because a generators alter voltage within the network in ways that are different to how the system was design to cope with.  Relays may cease to work as expected, leading to damage to electrical equipment.

Reza talks about relays in the system.  What is the most common form of a relay?

When voltage increases in distribution systems, how might PV inverters respond, and what would then happen?

Reza mentioned the term 'tap changer'.  Do a search online and find out what a tap changer is. 

If a feeder has multiple PV systems along it, when the sun is shining we will expect that the voltage will increase as we move away from the substation, and this is the opposite of what the system is designed to do.

In distribution networks, the normal range in which voltage should be kept is:

In which seasons are we seeing the biggest issues with reverse flow in the grid?

On of the main reasons why renewable energy is causing problems in the network is: