And bringing electricity to 20 Million People. Well get the inside track on one firms plans to use solar energy to power millions of homes in africa without installing expensive networks and cables. And as the work week eases into christmas, we want to know what is suitable Office Attire . Is it your Christmas Jumper . Or your glittery shoes . Let us know with pictures what youre wearing to work this week. Just use the hashtag bbc biz live. Hello and welcome to business live. Lets start in the United States because the worlds biggest economy is on the brink of its most sweeping tax changes in a generation. The Senate Passed the reforms just before 1am washington time. Congress just needs to hold one more procedural vote before President Trump can claim his first, big, legislative win. This entire package is likely to cost 1. 1; trillion over the next ten years. Most of that will be added to the National Debt which is already over 20 trillion. The biggest tax cut in the final version dr