We are in preliminary design of a new office building at a municipal wastewater treatment plant. The plant has made a significant ongoing investment to generate energy by recovering bio-gas from the wastewater treatment process, approximately 20% of the total electricity use for the wastewater treatment plant is currently met by on-site generation from bio-gas. Exact quantities would be detailed as part of the submittal. This raises several issues: Are we eligible to receive credit under the LEED EA Credits 1 and 2? If the plant is generating 15% of its total electricity use(existing plant electricity use+new office building electricity use) from bio-gas can we take credit on the office building project for 15% of the new office building\'s electrical use as renewable energy? These are approximate, exact numbers would need to be worked out on a cost basis, but may be 10% of total energy cost. We are not looking to preferentially assign this generation to the office building, but it seems fair to credit the sewerage district for their very significant investment in bio-gas generation. This also seems conservative as it would only take credit for the pro-rated energy use of the office building, and does not attempt to take credit for the significant additional amount of bio-gas used to generate power to operate the remainder of the plant. If this is acceptable, does the new office building need to be on the same meter to take credit for the renewable energy generation? Due to the size of the campus, it may be more cost effective to have the utility add a small transformer to feed the new office building rather than extend feeds from the existing plant transformers. The total energy use and bio-gas generation would not be affected. Finally, the sewerage district is planning a project to significantly increase the amount of bio-gas it is utilizing by increasing generator run hours and installing additional bio-gas storage. If using the total percentage of electricity generated by bio-gas as proposed above is not acceptable due to the fact that the generators are already in place, does the fact that there is a project planned to increase the bio-gas use change this? If what is proposed above is not acceptable, can we take credit under the new office building project for a prorated amount of the additional generation? For example, if the project increases the bio-gas capacity by 5% of the total plant electrical use, could we take credit for 5% renewable energy on the office building project? All of the above assumes that REC\'s will not be sold or will be addressed as described in earlier CIR\'s. We will also calculate percentages on an energy cost basis. Percentages would be based on the simulated building energy use and the actual plant bio-gas capacity at the time of the submittal and may vary somewhat from the examples above.