Solar coil power generation

Can solar power be combined with coal-fired power plants?

Two possible options are explored here: combining solar energy with coal-fired power generation, and cofiring natural gas in coal-fired plants. Both techniques show potential. Depending on the individual circumstances, both can increase the flexibility of a power plant whilst reducing its emissions. In some cases, plant costs could also be reduced.

Will solar power increase electricity supply in Mejillones?

As part of increasing electricity supply in the region, a 5-MW coal-solar hybrid project is being developed by Engie and Solar Power at the existing 320-MW Mejillones coal-fired power plant. It is anticipated that the incorporation of solar power will boost plant output and reduce coal consumption (and hence plant emissions).

Can solar power replace coal?

If solar power was used to replace a significant amount of coal fed to a power plant (operating in ‘coal saver’ mode), the overall amount could actually decrease, although this would not be the case with plants operating in ‘solar boost’ configuration.

How can a coal-fired power plant improve efficiency?

Coal-fired power operators continue to look for ways to increase the efficiency and extend the working lives of their plants by improving operational flexibility and reducing environmental impact. Two possible options are explored here: combining solar energy with coal-fired power generation, and cofiring natural gas in coal-fired plants.

How do coal-solar projects work?

A limited number of coal-solar projects are true hybrids. These operate under an entirely cooperative arrangement where the two sources of energy are harnessed to create separate but parallel steam paths. These paths later converge to feed a shared steam-driven turbine and generate electricity as a combined force.

Are hybrid coal-solar plants possible in Chile?

As part of this, the potential of hybrid coal-solar plants has been assessed. Chile operates several electricity grids: the central grid has variable hourly demand, whereas the northern one experiences almost constant demand, mostly from the sizable mining industry located predominantly in the north.