據能源經濟7月8日消息稱，在寶馬(BMW)億萬富翁股東斯蒂芬?科萬特(Stefan Quandt)的支持下，德國Solarwatt計劃推出一個小型模塊，讓房主可以將屋頂太陽能電池板與儲能電池和電動汽車連接起來，以降低成本。

　　墻箱可以讓房主控制何時以及儲存多少自家生產的光伏(PV)電力，用來給電動汽車(EV)充電或賣給電網。

　　此舉針對的是殼牌(shell)旗下的索能、德國的E3/DC、EnBW的Senec、LG化學、Varta和特斯拉，EuPD Research 稱這些公司在家用存儲市場占據主導地位。

　　Solarwatt客戶解決方案副總裁Peter Bachmann在計劃于周三發布產品前對路透表示：“能源經理是家庭的大腦。”

　　“它可以智能地分配來自屋頂的電力。”

　　Manager Flex 設備看起來像一個 wifi 路由器，售價約為 500 歐元（594 美元），可以將能量流和家里的小玩意整合在一起，比如屋頂面板、電池、電動熱泵和電動汽車充電盒。

　　擁有 Solarwatt 大部分股份的 Quandt 上個月表示：“我們正在展示，我們的DNA中有一種整體的思維方式。”

　　德國是一個明顯的起點。它擁有 30 萬個固定電池，是全球最大的家用存儲市場，領先于美國、日本和澳大利亞。

　　自2015年以來，德國的電池市場已經增長了10倍，今年預計將增長60%，其動力來自1600萬戶家庭，其中200萬戶使用太陽能電池板。

　　目前，在德國，生產一千瓦時太陽能的成本為7歐分，占電網電力的五分之一。

　　一個家庭安裝電池板發電，用電動熱泵代替燃油或燃氣鍋爐，用電動車代替汽油汽車，可以減少89%的二氧化碳排放。

　　曹海斌 摘譯自 能源經濟

　　原文如下：

　　Solarwatt flexes muscles in home energy storage fight with Shell, Tesla

　　Germany's Solarwatt, backed by BMW's billionaire shareholder Stefan Quandt, plans to launch a small module that lets homeowners link rooftop solar panels to power storage batteries and electric vehicles to cut costs.

　　The wall box allows homeowners to control when and how much home-produced photovoltaics (PV) power they store, use to charge their electric vehicles (EVs) or sell to the grid.

　　The move takes aim at Shell-owned Sonnen, Germany's E3/DC, EnBW's Senec, LG Chem, Varta and Tesla, which EuPD Research says dominate the home storage market.

　　"The energy manager is the brain of the home," Peter Bachmann, Solarwatt's Vice President Customer Solutions, told Reuters ahead of a launch planned for Wednesday.

　　"It distributes the power from the roof intelligently."

　　The Manager Flex device, which looks like a wifi router and will go on sale at around 500 euros ($594), allows the integration of energy flows and gadgets at home, such as rooftop panels, batteries, electric heat pumps and EV-charging boxes.

　　"We are showing that we have a holistic way of thinking in our DNA," Quandt, who owns a majority of Solarwatt, said last month.

　　Germany is an obvious starting point. With 300,000 stationary batteries, it is the world's top home storage market, ahead of the United States, Japan and Australia.

　　Germany's battery market has grown tenfold since 2015 and is set for 60% growth this year, fuelled by its 16 million house owners, of which two million operate solar panels.

　　Currently, it costs 7 euro cents to produce a kilowatt-hour (kWh) of solar power in Germany, a fifth of grid power.

　　A household installing panels for generation, an electric heat pump to replace oil or gas boilers, and buying an EV instead of a petrol-based car can cut its CO2 emissions by 89%, it said.

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