When to go
You can create a similar image of the Battersea Power Station and River Thames during any month of the the year. In my opinion, the spring and autumn months provide the best balance between warm temperatures and early nights.
To capture the red lights illuminated, you'll have to visit after dark. Daytime photographs of this famous power station still make for interesting images, but the ambience created by the contrast of the lights against the blackened sky will bring more power to your shot.
Field tips
I used a wide-angle lens (35mm) so I could capture the full reflection of all the lights in the water.
If you want to emulate the smooth water, which will provide the best reflections, check the weather forecast and visit when wind speeds are less than 3m/s.
A long exposure will let you smooth out the reflections, so using a tripod is essential at this location.
Current weather
Blue Hour
05:09
64o
Overcast
Golden Hour
17:25
64o
Overcast
Do nearby
Albert Bridge, which is to the west of this location, is one of the most beautiful bridges in London. It's covered in lights, so visiting at night will make for some awesome photographs.
For a daytime location, I recommend walking into Battersea Park. It's a nice place to relax and shoot photos of the park's attractions, such as the Peace Pagoda.