Today Elon Musk got the green light to merge two of his companies, Tesla and SolarCity - opening the way for a fully integrated solar powered solution to live a zero carbon life.

“We’re trying to make an integrated product,” Musk told Tesla shareholders today. “So you have an integrated solar roof with a Powerwall and an electric car, and you just go into a Tesla store, just say yes, it just happens. It all works, it’s seamless and you love it.”

Just five months ago, in June Elon was under serious fire for the first Tesla autopilot death and his plan to merge Tesla and SolarCity. His response? To double down on his commitment and publish his “Master Plan, Part Deux”, explaining why he was bringing the two companies together:

“We must at some point achieve a sustainable energy economy or we will run out of fossil fuels to burn and civilization will collapse.”

The next step in his plan was to “Create a smoothly integrated and beautiful solar-roof-with-battery product that just works, empowering the individual as their own utility, and then scale that throughout the world. One ordering experience, one installation, one service contact, one phone app.”

“We can't do this well if Tesla and SolarCity are different companies, which is why we need to combine and break down the barriers inherent to being separate companies.”

Since then, the negative press died down, Elon launched his new solar tiles and a news headline making the rounds last week is that Elon’s Tesla made more money last quarter than the entire US oil industry did last year. (Which is technically true as Tesla made $22 million while the US oil industry had a combined $67 billion in losses in 2015).

In the face of distraction and disruption, how focused are you at your one big thing?

When you’re feeling the heat, be like Elon and use the fire to burn bridges. When you cut down your options, your one big thing goes from a ‘nice-to-have’ to a ‘must-have’.

Too many people do the opposite - keeping all their options open, never committing, and burning relationships instead.

“Burn bridges, not people.”

Elon has spent the last five months since announcing his plan speaking to shareholders on both sides to convince them that one focus on one billion dollar company is better than Tesla and SolarCity running as two billion dollar companies.

This month he wrote another blog saying "The acquisition of SolarCity will create the world’s only integrated sustainable energy company, from energy generation to storage to transportation."

"Our customers will have an entire sustainable energy ecosystem... This is our vision for the future – one that is sustainable, less expensive, and just better. We hope you agree that this is a future we should all want." After five months of deciding, his shareholders voted today for the merger, which means his Masterplan just got simpler - and we’re all now moving to a sustainable future even faster.

"It's OK to have your eggs in one basket as long as you control what happens to that basket.” ~ Elon Musk