In this task, you are given an article. Your task is to summarize the article in a sentence.

[EX Q]: So he headed for China.
"The solar industry was fairly small and there weren't a lot of jobs," he remembers. "Just a few for installation." But the Chinese government had big ambitions to expand solar and Moser saw his chance.
He spent some years accumulating knowledge about the Chinese solar industry, before co-founding Symtech Solar, which designs solar panel systems using Chinese parts.
The idea is to make it easy for organisations outside China to access components without the hassle of having to source and assemble lots of different parts.
"You don't want to buy a car door or a car engine, you want to buy a car," he explains.
Symtech now has a portfolio of small projects dotted around the world and it is hoping to increase installations in the Middle East, thanks to a new office in Oman.
Moser isn't the only US entrepreneur who turned to China. Alex Shoer, of Seeder, helped to launch a business that brings solar panels to the roofs of buildings within the country.
He deals with foreign businesses who, say, want to make their Beijing office a little greener. The firm says it has so far erected three megawatts' worth of solar installations, with another 28 megawatts on the way for various clients.
"We will source the capital to finance, pay for the whole project and then sell the power at a discount," Shoer says. Again, the model relies on sourcing the right parts at a favourable cost.
These kind of installations are known as "distributed generation" projects, in which electricity is produced on a small scale, at or very near to a specific point of consumption.
Within China, distributed generation is growing at an extraordinary rate, driven in large part by farmers who use the panels to power agricultural equipment that might not be connected to the grid.
Shoer comments that he was attracted by Beijing's commitment to the solar industry. For years it has encouraged local authorities to do what they can to boost production, research and development.
China's rapid expansion of renewable energy facilities has since caught headlines around the world.
According to the International Energy Agency (IEA), the country installed more than 34 gigawatts of solar capacity in 2016 - more than double the figure for the US and nearly half of the total added capacity worldwide that year.
Early figures for 2017 show China has added another eight gigawatts in the first quarter alone.
"It's a huge market," says Heymi Bahar at the IEA. Most of the world's solar cells are made in China and Taiwan, he adds - more than 60%.
The impressive scale doesn't stop there. The largest solar farm in the world - Longyangxia Dam Solar Park, all 30sq km of it - is a Chinese project. And the country recently opened the world's largest floating solar farm, in Huainan, Anhui Province.
It has been constructed over an old coal mine, which over the years had filled with rainwater. Sungrow, the Chinese firm that designed the solar plant, says its system automatically monitors current and voltage generated by the cells, along with humidity, which can affect their efficiency.
Because of the abundant water nearby, cleaning the panels - an endless task for solar farmers - will be easier, according to those behind the facility.
These mega projects have become possible, and indeed more common, thanks to the rapidly falling cost of solar cells.
"What we were all hoping for 20 years ago when the idea of cheap solar was just a dream, was that someone would come into this on an industrial scale and drive down the cost," recalls Charles Donovan, at Imperial College Business School.
"That is exactly what China has done."
But today, solar energy production accounts for just 1% of China's total energy demand. A huge 66% of demand still comes from coal, something that the country's National Energy Administration wants to change drastically by 2050 - not least because of China's well-known air pollution problems.
But by that key date of 2050, a very different mix of energies could be powering China, should some projections become reality. One government report even suggested that renewables could supply 86% of the country's energy needs, with solar providing around a third of that.
Can China do it? According to one expert observer, the answer is, "maybe".
"What China is trying to do is rationalise a very large, fast growing system," explains Jeffrey Ball at Stanford University's Steyer-Taylor Center for Energy Policy and Finance. Ball is the lead author of a recent report that details China's success as an innovator in the solar panel industry.
But as Ball points out, the revolution has not been without teething issues. For one thing, Chinese subsidies, which some argue are unsustainable, have not always been smoothly administered. The "feed-in tariff", for example, often offered to solar companies that generate electricity, has sometimes been paid late.
"The government is often a year or more late in delivering that revenue - that wreaks havoc with the financials on a project," says Ball.
The value of subsidies has recently been cut, too. What's more, China's large solar farms are largely in less densely populated areas in the west of the country, far from population centres like Beijing or Shanghai, in the east.
Building extra grid capacity to transfer it is time-consuming and expensive. This leads to a problem known as curtailment - a solar farm produces, say, 20 megawatts of electricity but can only find buyers for 15 megawatts.
"Depending on who you talk to in the provinces that have by far the largest amount of solar production, curtailment rates are 30% and in some cases significantly higher than 30% - that's extraordinary and that's a real problem," explains Ball.
Whether China can achieve its lofty ambitions for renewable energy remains to be seen - but it has certainly proved its ability to foster a world-leading solar industry. For US entrepreneurs like Geof Moser, that's enough to propel his own business towards further growth for now.
"The reality is that renewable energy is very cheap - especially solar energy," he says. "And the reason is China."
[EX A]: Ten years ago, Geof Moser had just graduated with a master's degree in solar energy from Arizona State University - but he didn't feel much opportunity lay at his feet in his home country.

[EX Q]: Tory MP Tim Yeo has said it should go ahead, two days after Housing Minister Grant Shapps hinted a future Tory government could consider the option.
The coalition agreement rules out any expansion before the next election and Labour also currently opposes it.
Mr Shapps told the Daily Telegraph that "all options should be considered".
He told the newspaper on Saturday: "I back the Chancellor's position to the hilt when he said in the Budget we clearly need to review the airport capacity in the South East. All the options need to be considered while being mindful of our election manifesto."
Asked by the BBC whether he believed the Heathrow expansion could take place after the next general election, in 2015, Mr Shapps said: "These things need to be considered in due course."
Speaking to the BBC Radio 4's Today programme on Monday, Mr Yeo said the issue "was a race in which Britain is now falling behind and we need to get back into it".
"Airlines are among the people who're pushing for this now very badly-needed expansion, so that we don't continue to lose out against airports like Frankfurt and Charles de Gaulle, both of whom have twice as many destinations in China, twice as many flights going to China," he said.
The former Labour chancellor, Alastair Darling, also told the programme the expansion at Heathrow needed to go ahead.
"The whole point about Heathrow is that it has more destinations than most other airports in the world. And the reason that it works is that if you fly into Heathrow you can go to most parts of the world.
"You can't have two hubs with one half of the world in one place, and one half in the other place. It simply doesn't work like that. Now, the advantage of Heathrow is it is there now, we can't go on putting this decision off," he said.
Transport Secretary Justine Greening - whose Putney constituency is on the Heathrow flightpath - has been a vehement campaigner against a third runway at the airport.
Some residents, who live under the flight path and are opposing the new runway plan, say better use could be made of existing airport capacity.
John Stewart, chairman of the Heathrow Association for the Control of Aircraft Noise, told BBC Radio 5 live's Stephen Nolan: "At the moment, the Department for Transport's own figures show that we have sufficient capacity, even in London and the South East, until almost 2030.
"So we have got time to look and see what we need. Justine Greening is quite right to say 'let's not rush into this'."
Jane Thomas, a campaigner at Friends of the Earth, said the business case for expansion had also not been made.
She said the government needed to take a "strong and clear leadership over aviation", which meant including aviation and shipping in the UK carbon budget.
"The Tories were emphatic that there would be no Heathrow expansion in 2010, and we still expect that commitment," she said.
The Mayor of London, Boris Johnson, who also opposes expansion at Heathrow, has campaigned for a new airport in the Thames Estuary.
A Â£50bn project to build an airport east of London has been put forward by architect Lord Foster.
A consultation on the future of air capacity in south-east England has twice been delayed by the government.
[EX A]: More calls have been made within the Conservative party for its leadership to rethink the policy opposing a third runway at Heathrow Airport.

[EX Q]: Elsewhere in the UK, there is a one-year deferral period for men who have had sex with men (MSM)  to donate.
Northern Ireland has an outright ban.
But a judge ruled that former health minister Edwin Poots did not have the power to retain that ban. His ruling will be appealed in court later.
In the Northern Ireland Appeal Court on Monday, the current on-off health minister, the Democratic Unionist Party's (DUP) Simon Hamilton, is appealing the judgement, alongside Health Secretary Jeremy Hunt.
They shall be asking who is in charge of blood policy and whether or not this is a devolved issue. The appeal is expected to last four days.
Following a Freedom of Information request, BBC News NI has seen emails sent between Northern Ireland's Department of Health and the Northern Ireland Blood Transfusion Service (NIBTS), which is responsible for the collection, testing and distribution of blood.
The NIBTS also said it had stopped 30 men from donating blood at their clinics since 2011 after they informed staff that they had sexual contact with other men.
The BBC asked the NIBTS how confident it would be that its blood is screened correctly and that it would be safe for MSM to donate after the one-year deferral period.
It said: "All blood donations are subjected to the testing regimes required by the Blood Safety and Quality Regulations 2005.
"As such, NIBTS is confident that all blood samples are screened correctly."
The BBC has also seen instructions sent to the NIBTS from Dr Elizabeth Mitchell, the deputy chief medical officer, instructing the organisation how to respond if approached by the media about the ban remaining in place.
Dr Kieran Morris, the former chief executive of the NIBTS, replied showing some concern about the process and how he would answer questions from his own staff.
"As chief executive officer and accountable officer for the NIBTS special agency service, I require from the Department of Health a written direction, giving me a clear line as to how we manage and control the situation," he said.
"There is no doubt in my mind that referring all matters to the Department of Health press office will not be sustainable for more than a few days."
A BBC investigation earlier this year found the Department of Health does not have any medical evidence of its own to support a permanent ban on gay men donating blood.
The ban was put in place across the UK during the Aids crisis of the 1980s, but was lifted in England, Scotland and Wales in November 2011.
New rules were introduced that allowed blood donations from men whose last sexual contact with another man was more than a year earlier.
But Northern Ireland did not follow suit.
A gay man, granted anonymity due to his perceived vulnerability, launched a judicial review challenge over then health minister Edwin Poots's decision not to adopt the same policy on this side of the Irish Sea.
A judge ruled that Mr Poots' decision was "irrational" and "infected with apparent bias".
Mr Poots said he had kept the ban on the basis of ensuring public safety.
In April, the European Court of Justice (ECJ) ruled that a lifetime ban may be justified in member states if no effective detection techniques exist within the country.
The ECJ said countries must establish if such donors were at high risk of acquiring infectious diseases like HIV.
Mr Hamilton said he would study the ruling.
A number of issues will be looked at in the Court of Appeal, including whether blood policy should be a devolved matter.
The appeal is expected to last for four days.
The NIBTS did not respond to the BBC to give an additional comment.
A Department of Health spokesman said: "It would not be appropriate at this stage to comment on matters that are before the courts."
[EX A]:
Thirty men have been stopped from donating blood at clinics in Northern Ireland because they have had sexual contact with another man, a BBC investigation has found.

