Wind turbine blade with asymmetrical spar caps

A wind turbine blade, comprising:

• a spar, comprising:
• a pressure side spar cap comprising pressure side fibers configured to resist a first flap deflection in a first direction;
• a suction side spar cap comprising suction side fibers configured to resist the first flap deflection;
• a spar web configured to hold the pressure side spar cap and the suction side spar cap in a spaced-apart relationship;
• a pressure side shell comprising the pressure side spar cap;
• and
• a suction side shell comprising the suction side spar cap,
• wherein the pressure side fibers and the suction side fibers comprise at least one of a plurality of different diameters and a plurality of different compositions, and
• wherein at a given radial cross section the suction side fibers comprise a greater compressive strength than the pressure side fibers.

A wind turbine blade, comprising:

• a pressure side spar cap comprising pressure side fibers;
• and
• a suction side spar cap comprising suction side fibers;
• wherein for a given radial location along the blade, cross sections of the pressure side spar cap and the suction side spar cap are asymmetric;
• and
• wherein the suction side cross section comprises a greater compressive strength than the pressure side cross section.