太阳能(tài yáng néng) - solar energy, solar power in Mandarin

他tā们men家jiā的de房fáng子zi装zhuāng了le太tài阳yáng能néng板bǎn。

Their house has solar panels fitted.

这zhè个ge小xiǎo灯dēng是shì太tài阳yáng能néng的de，不bú用yòng插chā电diàn。

This little lamp is solar-powered, so it doesn't need plugging in.

太tài阳yáng能néng越yuè来lái越yuè便pián宜yi了le。

Solar power is getting cheaper and cheaper.

你nǐ们men学xué校xiào用yòng太tài阳yáng能néng吗ma？

Does your school use solar power?

我wǒ想xiǎng买mǎi几jǐ块kuài太tài阳yáng能néng板bǎn，装zhuāng在zài房fáng顶dǐng上shàng。

I'd like to buy some solar panels and put them on the roof.