BERLIN – The German government is poised to agree Wednesday on a long-term strategy for increasing production and use of hydrogen as part of a plan to cut the country’s greenhouse gas emissions.While hydrogen is currently produced almost exclusively from fossil fuels, the government plans to encourage its production from excess electricity generated by renewable energy sources.Experts say this so-called green hydrogen could help smooth out the problem of solar and wind power's fluctuating supply, and replace fossil fuels in industrial processes that require high temperatures such as steel making.The government plans to invest 9 billion euros ($10.2 billion) to promote hydrogen production and use, including 2 billion euros that will go.