Rather than fill a standalone electric kettle and wait to make tea, coffee etc...
I hate to wait (even 2 minutes in microwave) for my tea too. So I've got a Hot Water Dispenser like
this one. Unlike office type dispensers (for bottled water) these are
really boiling water (100C). What's crucial for real tea lovers.
Extremely convenient and relatively inexpensive. 3.6 liters model is perfect for a couple of days or more (2 adults). Just add water once in a while (before bed is the best), it will reboil automatically. Plain cylindrical stainless steel pot inside is very easy to clean. I believe they are quite efficient. The consumption measurements over a week of use shows the same figures (in kWh) as our halogen torchlight w/200 Watt Bulb over the same period (in September).
It's died after 2 years of 24/7 use. But I just had to re-solder the burnt out wire inside to make it work as new again.
Zojirushi (Japan) is the best in the world (IMHO) brand for these and also for thermoses (mine is some cheaper IKEDA noname).