I'll keep this updated throughout the day.
The NPB announced today that the 12 teams of the NPB managed to raise a total 35,981,155 yen at games that took place between 4/12 (opening day) and 5/8. The money will be donated to relief efforts in northern Japan.
Chiba Lotte Marines
The Marines' first home night game of the season takes place tomorrow vs the Seibu Lions. The club will be looking to reduce energy usage for night games by about 20%. Some of the steps that will / were taken: lights will be cut back by about 20%; lighting systems were cleaned to provide maximum brightness; lighting in walkways will be cut back; and air conditioning equipment will be turned off.