Answer: from the hotter surface to the colder one
Explanation:
There are three types of tectonic plate boundary. These are divergent, convergent and transform plate boundaries. The divergent boundary is a fault where two plate move away from each other. Convergent is when two separate plates push each other. Lastly, transform plate boundary is when two plates slide past each other.
The pressure will continue to build up eventually causing a release of pressure or an explosion.
It also depends on what we use to make the energy in the power plants. Many use uranium which is non renewable. A better alternative would be wind or solar as it is always around. Hope this helps.