PORTSMOUTH, England, May 30 (Reuters) - British ferry operator Wightlink wants to order a $60 million, state-of-the-art electric ferry to make its crossings cleaner and greener. But it can't commission the vessel until it gets a power upgrade.

The company carries 4 million islanders, holidaymakers and festival goers every year on a five nautical mile crossing between England's picturesque southern coast and the Isle of Wight. The strait, known as the Solent, is popular with yachts and leisure craft, while much of the coastline is protected.

Wightlink has funding in place for a electric-powered car ferry that would reduce emissions both at sea and in port, following in the path of pioneer Norway, which introduced the world's first in 2015.

The government has said decarbonising maritime transport is essential to achieving Britain's net zero target by 2050. Domestic maritime vessels represented around 5% of Britain's greenhouse gas emissions from transport in 2020, more than rail and buses combined, the government said in a 2022 report.

And the long average lifespan of vessels means that greener ships must start being deployed by next year to achieve a green fleet by the 2050 deadline.

But interviews with 22 people - including investors, power company employees, government officials, Wightlink staff and countryside campaigners - revealed that long waits for grid connections combined with planning obstacles are putting millions of pounds of green transport investment at risk.

"We want to go electric. We think it's the right thing," Wightlink Chief Executive Keith Greenfield told Reuters onboard a hybrid ferry, which uses diesel to charge electric batteries, saving around 20% in emissions. "We're held back by a lack of shore power."

Wightlink needs to order its next ship within 12-18 months to replace an ageing vessel, but cannot commit to go solely electric without a legally binding power contract, Greenfield said.

Regional network operator Scottish & Southern Electricity Networks (SSEN) told Wightlink two years ago that a new connection at its Portsmouth terminal would require infrastructure upgrades, including at a nearby substation on the national high-voltage network, according to a document reviewed by Reuters and ferry company executives.

The substation improvements by National Grid were not scheduled to be completed until 2037.

After Reuters interviewed Wightlink executives, SSEN said this month enough power may be available without the National Grid work, and it would hold new talks with the ferry company.

If Wightlink accepts a new quote from SSEN, it will be able to guarantee the capacity and confirm its place in the connections queue.

"We look forward to meeting them early next month to progress proposals," a SSEN spokesperson told Reuters. The comment declined to comment on the change.

Britain will hold a general election on July 4 with polls predicting a victory for the opposition Labour party after 14 years of Conservative rule.

Wightlink's dilemma underscores the challenge Britain's next government will face in delivering the renewable energy and grid infrastructure needed to power a shift to electric ferries, cars and domestic heating in Europe's second-largest economy.

Britain was the first major economy to create a legally binding 2050 net zero target. It's a leader in offshore wind and it has halved emissions since 1990 after closing coal power plants.

Central to the net zero target is a plan to decarbonise the electricity system by 2035. But the state adviser, the Climate Change Committee, said in a progress report in June 2023 that the government lacked a full strategy to get there.

CHANGING DATES

How to achieve net zero, and at what cost, has become a battleground both nationally and locally.

Britons support the policy of net zero but they often baulk at the costs and infrastructure that may be required to get there, surveys show. Prime Minister Rishi Sunak scrapped some targets last year, saying he needed to retain public support in the face of "unacceptable costs".

Labour has pledged to decarbonise the electricity grid by 2030, five years ahead of the Conservatives' target of 2035. Reforming grid connections is one part of its ambitious plan.

To hit net zero, Britain needs to expand the high-voltage network in England and Wales carried overhead on large pylons, which then connect to regional distribution networks.

The grid, owned and operated by London-listed National Grid Plc, was built to transmit power generated from coalfields in areas like Yorkshire and Nottinghamshire across the country.

Today more electricity is coming from wind farms in Scotland and off Britain's east coast, and new infrastructure is needed to transmit it to London and the south.

Currently wind farms are being paid to switch off in strong winds, when the grid cannot absorb all the generated power, data from the country's electricity system operator shows.

The government has said reinforcements needed to increase capacity, including new substations, power lines or supergrid transformers, could take up to 13 years to complete, in part due to regulatory and planning approval.

It wants to halve that time, and is working with the regulator, Ofgem, network operators and the industry to accelerate connections.

National Grid said in May it would spend more than 30 billion pounds ($38 billion) on the grid over the next five years.

"We're driving forward the biggest reforms to our electricity grid since the 1950s," the Department for Energy Security & Net Zero told Reuters.

It set a target in November to cut the average delay faced by viable net zero-aligned projects like Wightlink for connections from around five years to six months, saying a faster system needed to be in place by 2025.

INFRASTRUCTURE V CONSERVATION

One issue that stands in the way of developing the grid and the renewable energy projects needed to power it are Britain's planning laws.

Approval times have ballooned in recent years, as local councils struggle to process applications and rural communities bring legal challenges to oppose major works.

The time it takes to secure consent for large-scale projects like wind farms has increased by 65% since 2012, stretching to 4.2 years, according to a government-requested report by the National Infrastructure Commission in 2023.

The rate of schemes subject to lengthy judicial reviews has leapt to 58%, from a long-term average of 10%, it said.

That pushes up project costs, threatening investment.

Fiera Infrastructure, the Canadian co-owner of Wightlink, warned that investors can always spend their capital elsewhere.

"Global investors are not yet at the point of turning their backs on UK infrastructure, but missteps around policy have eroded investor confidence," President Alina Osorio told Reuters.

The sentiment was echoed by other infrastructure investors, including one of the biggest in Britain, which has backed a company building electric vehicle chargers at motorways.

The fund manager, who asked not to be named, said a lack of new power had forced the company to adapt some of its projects.

Minal Patel, a partner at Schroders Greencoat, a renewable investment manager, said strong investor demand for renewable assets showed Britain remained attractive, but slow grid connections were a challenge.

CONNECTION

For Wightlink, the hunt for a connection has been fraught.

In 2022, SSEN quoted Wightlink 4.6 million pounds for 12MW connections to power the chargers it needs to install in Portsmouth and Fishbourne, according to documents seen by Reuters. The units must charge the electric ferry in the 20 minutes it has between sailings.

Work could be completed in around 12 months in Fishbourne - one of Wightlink's terminals on the Isle of Wight - but there was no timeline given for the Portsmouth connection.

Under the rules, a project like Wightlink's must accept a quote from the distribution network provider to secure a place in the connections queue.

But Wightlink's Greenfield said it could not order a 50 million pound ferry without a guarantee of power.

In the last week, SSEN said there could be enough capacity to deliver more than the power Wightlink initially wanted.

Wightlink's Head of Engineering & Estates Charlie Field is hoping that a contract can finally be agreed.

"A few weeks ago, all deals were off as far as we were concerned. We had to wait until 2037," said. "Now that might not be the case." ($1 = 0.7865 pounds)