>>Base cost<<
2000 Energy, 10 Minerals, 60 Crystals, 30 Ectrolium

>>Construction Time<<
24 standard weeks

>>Upkeep<<
16 Energy per standard week

>>Networth<<
8 points

>>Tech Required<<
160%

These buildings deploy protection fields around defensive units or satellites, absorbing damage, therefore reducing losses for the defender. They can't be destroyed during battles. Formula for damage reduction : attdam * ( 1.0 - 2.5^-( 1000*shields / attdam ) ) )