I'll keep this updated throughout the day.
Chiba Lotte Marines
The Marines plan on using power generators at QVC Marine Field during July, August, and September. For now, they intend on putting on 600kW generator online to help offset energy consumption levels at the stadium (last summer, usage maxed out at 2,300kW).
The Marines announced today that they'll be using a solar power system from Suntech Power Japan. Once construction is complete (sometime in December), the system will provide 12-15% of the energy the club uses at it's practice facilities. The club also has plans of adding solar generators to their stadium at some point in the future as well.