High penetration of renewable energy in island grids

At the Asia Clean Energy Forum 2015, ADB, Manila, presented this topic. High penetration of RE requires the following:

a. Identified reserve power sources that can do load following on the net load (=load minus variable generation)

b. Some amount storage to the grid for primary frequency response and if required load shifting/peak shaving

c. For higher stability, storage can provide “bridge energy” to allow cold start of diesel generators in response to disturbances

d. Hybrid controllers that manage wind, solar, storage, diesel plants

e. High speed communications between the generation and storage locations