That may not sound great, but the power from traditional cells is about five times as costly as grid electricity, so GreenSun's system sounds like a winner for places that are not yet connected.

听起来也许不尽人意，不过传统电池发电的高昂成本大约为电网输电的5倍，所以绿色太阳的方法对那些未接电的地区来说很是不错。

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The experiment result proves that the PV grid-connected system controlled by DSP is effective and feasible.

实验结果验证了用DSP控制的光伏并网发电系统是有效的和可行的。

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Grid-connected inverter is the core of PV Grid-connected system.

光伏并网发电系统的核心就是并网逆变器。

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Customers (in this case the school district) pay no money up-front, paying only for the solar energy they use and typically seeing reductions on their utility bills as soon as the system is connected to the grid.

FORBES: Could Solar Save Education?

The solar mission in its first phase focused on areas already connected to the grid and had a pricing system that bundled four units of thermal electricity with one unit of solar-based power, which reduced the average per-unit cost of solar electricity.

WSJ: India Plans Subsidies to Boost Solar-Power Sector