This has appropriate green credentials as long as the electricity is either from renewable sources or a nuclear-power plant.

只要电力来自可再生能源或核电站，这就具有适当的绿色资质。

But is this enough to burnish its green credentials?

但这足以证明其环保资质吗？

At the moment, most graphite for anodes is made in this way, but carmakers worried about their green credentials are expected, increasingly, to seek out the cleaner, mineral variety, says Andrew Miller of Benchmark.

目前， 大多数用于阳极的石墨都是通过这种方式制造的， Benchmark 的安德鲁·米勒 (Andrew Miller) 表示，但越来越多的汽车制造商担心他们的绿色资质，他们将越来越多地寻找更清洁的矿物品种。