According to my studies, it's the best integration of Renewables ( Solar PV or WInd) generations systems with the conventional generation systems like the Hydropower and Thermal Power generations systems. Because the Renewables have the intermittent characteristics that can be compensated with the stable generation-powers from the Hydropower and Thermal power.
This integration could be a feasible option with different beneficial features of the Renewables. For example, in the summer, the Solar PV system can generate the large capacity; in the rainy season, the Hydropower and Wind systems can generate large capacities.
Electricity demand presents a stochastic behaviour and is good reflection of human behaviour with respect to adaptability. Generally, electricity demand is on the increase given the expansion order of the current century and for a stable economy, this increasing demand must be met from time to time. Without a stable power supplies, electricity demand may seem to drop as many industries will definitely not function well leading to possible closure of many of the outfits. However, renewable integration with conventional sources presents a more reliable supply which would consequently ginger various commercial and industrial development. Hence, it is safe to conclude, though without empirical results, that increased renewable integration would most likely increase electricity demand.
Renewable enrgies are more than vital nowdays, fossil fuels sources are not renewable and then not sustainable. The new world with the excess of electricity demand needs new grids with the contribution of classical sources, renewable sources and users to meet the requierements. The smart grids are the new oppurtunity to improve our life
I totally agree, but I dont assume any soon that these new renewable energies are as efficient as fossil or nuclear ones, especially for transportation and autonomous wireless machines. However, new energy economic technologies and promossing power storages are one opproach to compensate the lack of power supply on those industrial fields ( as an example: up today no car is completely autonomous in terms of electrical energy supply )