where a significant share of solar panels are installed. To scale up, the company recently raised a $31 million Series B led by Fifth Wall with participation from Saint-Gobain and Ayala.

Solar can be built faster and with fewer permits than other forms of energy infrastructure, mostly because the panels are flat and modular (unlike, say, a towering wind turbine or a hulking gas ...

Wall panelling doesn't have to be traditional in style, there are plenty of ways to give it a modern twist like here. Using vertical panels gives this staircase a modern look, while leaving the ...