Transmission

How dangerous are battery storage fires, really? Despite the headlines, grid-scale battery fire failure rates have fallen 99% since 2018 - from around 4 incidents per gigawatt hour to under 0.1. Even as global deployment scaled into the tens of gigawatt hours. Most people still picture a whole site going up in flames. The engineering tells a very different story. Dan Sherlock-Burke, Director of Asset Management at Gore Street Capital, joins Ed Porter for a technical look at how battery fire safety actually works - from the Moss Landing fire that shaped public perception, to the data that can flag a failing module weeks...

How dangerous are battery storage fires, really? Despite the headlines, grid-scale battery fire failure rates have fallen 99% since 2018 - from around 4 incidents per gigawatt hour to under 0.1. Even as global deployment scaled into the tens of gigawatt hours. Most people still picture a whole site going up in flames. The engineering tells a very different story. Dan Sherlock-Burke, Director of Asset Management at Gore Street Capital, joins Ed Porter for a technical look at how battery fire safety actually works - from the Moss Landing fire that shaped public perception, to the data that can flag a failing module weeks...

The atmosphere is unpredictable, and weather forecasts are far more reliable on some days than others. For anyone trading power or gas across Europe, knowing the difference is everything. It's what separates a confident call from an expensive guess. In this conversation, Ed is joined by Matt Dobson - Head of European Energy Forecasting and Emma Patmore, Energy Meteorologist from MetDesk. They walk us through when they can trust what they're seeing and when they can't, and how they turn an uncertain forecast into something traders can actually act on. Along the way they cover wind droughts (or Dunkelflaute), a...

The atmosphere is unpredictable, and weather forecasts are far more reliable on some days than others. For anyone trading power or gas across Europe, knowing the difference is everything. It's what separates a confident call from an expensive guess. In this conversation, Ed is joined by Matt Dobson - Head of European Energy Forecasting and Emma Patmore, Energy Meteorologist from MetDesk. They walk us through when they can trust what they're seeing and when they can't, and how they turn an uncertain forecast into something traders can actually act on. Along the way they cover wind droughts (or Dunkelflaute), a...

Two thirds of industrial energy demand is heat, not electricity, and most of it still runs on gas. Thermal storage converts cheap electricity into heat, stores it in concrete, and dispatches it when the factory needs it, undercutting the gas bill even though gas is cheaper per unit on average. Alex Robertson, CEO of Energy Nest, joins Ed Porter to explain how a thermal battery works, why it competes with lithium-ion on cost, and why grid connections - not the technology - are the real constraint on industrial decarbonisation.They cover:- Why thermal storage functions like a battery on...

Two thirds of industrial energy demand is heat, not electricity, and most of it still runs on gas. Thermal storage converts cheap electricity into heat, stores it in concrete, and dispatches it when the factory needs it, undercutting the gas bill even though gas is cheaper per unit on average. Alex Robertson, CEO of Energy Nest, joins Ed Porter to explain how a thermal battery works, why it competes with lithium-ion on cost, and why grid connections - not the technology - are the real constraint on industrial decarbonisation.They cover:- Why thermal storage functions like a battery on...

Germany's battery storage market is booming - but a saturation crunch is coming, and most investors aren't ready for it. The question is which revenue streams hold up, and which collapse the way they did in GB, Texas, and Australia.Ed sits down with Till Stehr, German Research Analyst, and Cosima from the Advisory Services Team at Modo Energy, to map the real structural drivers, and risks, behind German BESS returns.They cover: Why German battery saturation is closer than the market thinks - FCR is already saturated, with aFRR close behind.• Why German battery revenues near €200,000/MW/year for a tw...

Germany's battery storage market is booming - but a saturation crunch is coming, and most investors aren't ready for it. The question is which revenue streams hold up, and which collapse the way they did in GB, Texas, and Australia.Ed sits down with Till Stehr, German Research Analyst, and Cosima from the Advisory Services Team at Modo Energy, to map the real structural drivers, and risks, behind German BESS returns.They cover: Why German battery saturation is closer than the market thinks - FCR is already saturated, with aFRR close behind.• Why German battery revenues near €200,000/MW/year for a tw...

Most battery revenue projections stop at the day-ahead auction. But the optimisers running multi-gigawatt BESS portfolios argue that's where the money is being left on the table - re-trading a battery through intraday, balancing, and ancillary services can add 50% or more to revenue, and battery offtake structures like floors, tolls, and swaps only make sense once you understand how that value actually gets captured.In this episode of Transmission, Ed Porter sits down with Brian Lonn, Head of UK Flexibility at Statkraft, to break down how a multi-gigawatt battery optimisation desk actually trades batteries and the offtake structures it offers...

Most battery revenue projections stop at the day-ahead auction. But the optimisers running multi-gigawatt BESS portfolios argue that's where the money is being left on the table - re-trading a battery through intraday, balancing, and ancillary services can add 50% or more to revenue, and battery offtake structures like floors, tolls, and swaps only make sense once you understand how that value actually gets captured.In this episode of Transmission, Ed Porter sits down with Brian Lonn, Head of UK Flexibility at Statkraft, to break down how a multi-gigawatt battery optimisation desk actually trades batteries and the offtake structures it offers...

The scope of the National Energy System Operator - or NESO - has expanded from running the electricity system to planning Britain's whole energy system across electricity, gas and hydrogen, all while delivering connections reform and steering toward Clean Power 2030. That transformation is reshaping everything from how Britain plans its grid 20 years out to how it keeps the lights on tonight. Ed Porter is joined by Kayte O'Neill, Chief Operating Officer at the National Energy System Operator (NESO), for a wide-ranging conversation on the biggest reforms in the GB power market: grid connections reform, the battery storage queue, zero-carbon grid...

The scope of the National Energy System Operator - or NESO - has expanded from running the electricity system to planning Britain's whole energy system across electricity, gas and hydrogen, all while delivering connections reform and steering toward Clean Power 2030. That transformation is reshaping everything from how Britain plans its grid 20 years out to how it keeps the lights on tonight. Ed Porter is joined by Kayte O'Neill, Chief Operating Officer at the National Energy System Operator (NESO), for a wide-ranging conversation on the biggest reforms in the GB power market: grid connections reform, the battery storage queue, zero-carbon grid...

Three years ago, the best price for a ready-to-build solar project in Spain was €200,000 per megawatt — today it is €50,000. Batteries have moved the opposite way, with ready-to-build prices climbing to around €100,000 per megawatt and a 30GW pipeline now stacking up behind them.Ed Porter sits down with Carmen Izquierdo Serrano, founder of nTeaser, the renewable energy marketplace where many of Spain's BESS, solar, and co-located deals are transacting, to unpack what those numbers actually mean for investors entering the Spanish power market and how the post-blackout urgency, and bottlenecks in financing and labour will shape who wins the next phase of Spain...

Three years ago, the best price for a ready-to-build solar project in Spain was €200,000 per megawatt — today it is €50,000. Batteries have moved the opposite way, with ready-to-build prices climbing to around €100,000 per megawatt and a 30GW pipeline now stacking up behind them.Ed Porter sits down with Carmen Izquierdo Serrano, founder of nTeaser, the renewable energy marketplace where many of Spain's BESS, solar, and co-located deals are transacting, to unpack what those numbers actually mean for investors entering the Spanish power market and how the post-blackout urgency, and bottlenecks in financing and labour will shape who wins the next phase of Spain...

Chris Stark is Head of UK’s Mission for Clean Power, As Head of Mission Control at DESNZ, no one sees the constraint costs, grid bottlenecks and reform of National Pricing trade-offs more clearly. The UK is building a clean power system at a pace not seen since the 1960s, connecting record volumes of wind and solar while transmission, storage and gas all reshape around them. Constraint costs have hit £7 billion, gas is being squeezed off the system, and the government has just rewritten the rules of the wholesale market.Chris joins Ed Porter to break down what Mission Control is...

Chris Stark is leading the UK's Clean Power 2030 mission. As Head of Mission Control at DESNZ, no one sees the constraint costs, grid bottlenecks and reform of National Pricing trade-offs more clearly. The UK is building a clean power system at a pace not seen since the 1960s, connecting record volumes of wind and solar while transmission, storage and gas all reshape around them. Constraint costs have hit £7 billion, gas is being squeezed off the system, and the government has just rewritten the rules of the wholesale market.Chris joins Ed Porter to break down what Mission Control is actually d...

Germany sits at the centre of Europe's energy transition: over 800 distribution networks, deep intraday markets, and a flexibility gap roughly 40 times its battery fleet. But the real question isn't whether the market is big - it's whether it saturates as battery capacity grows, or scales for years yet.Philipp Man is co-founder and CEO of Terralayr. He joins Ed Porter to unpack the operational reality of building Germany battery storage at scale, the regulatory tension around grid fees, and the contrarian view that Germany's flexibility market is structurally larger than most forecasts suggest.They cover:- Why operating Germany battery...

Germany sits at the centre of Europe's energy transition: over 800 distribution networks, deep intraday markets, and a flexibility gap roughly 40 times its battery fleet. But the real question isn't whether the market is big - it's whether it saturates as battery capacity grows, or scales for years yet.Philipp Man is co-founder and CEO of Terralayr. He joins Ed Porter to unpack the operational reality of building Germany battery storage at scale, the regulatory tension around grid fees, and the contrarian view that Germany's flexibility market is structurally larger than most forecasts suggest.They cover:- Why operating Germany battery...

Developing battery storage in emerging markets isn't a technology problem - it's a regulatory, offtake, and capital problem. The frameworks, offtake structures, and capital mandates weren't built for storage and that gap is exactly where the risk sits.Hassen Bali, co-founder and director at Ion Ventures, joins Ed Porter to discuss what it actually takes to develop battery storage projects across markets at very different stages of maturity, from the UK to Southeast Asia.They cover:- Why battery storage development demands a different approach to solar or wind and why you have to decide your commercial endpoint before you...

Developing battery storage in emerging markets isn't a technology problem - it's a regulatory, offtake, and capital problem. The frameworks, offtake structures, and capital mandates weren't built for storage and that gap is exactly where the risk sits.Hassen Bali, co-founder and director at Ion Ventures, joins Ed Porter to discuss what it actually takes to develop battery storage projects across markets at very different stages of maturity, from the UK to Southeast Asia.They cover:- Why battery storage development demands a different approach to solar or wind and why you have to decide your commercial endpoint before you...

Spain has approximately 42GW of utility-scale solar and 50GW when rooftop is included, yet less than 100MW of grid-connected battery storage. In February, solar capture rates hit €1.30 per megawatt hour, a fraction of the €30–35/MWh needed for a solar project to break even. So why hasn't battery storage followed the solar boom and could it be the key to rescuing solar revenues?Pablo Martinez Serrano, Iberia Industry Lead at Modo Energy, joins Ed Porter to break down why Spain's energy market defies easy assumptions, and what the Iberian blackout changed.They cover:- Why Spain's hydro fleet masked the need for ba...

Spain has approximately 42GW of utility-scale solar and 50GW when rooftop is included, yet less than 100MW of grid-connected battery storage. In February, solar capture rates hit €1.30 per megawatt hour, a fraction of the €30–35/MWh needed for a solar project to break even. So why hasn't battery storage followed the solar boom and could it be the key to rescuing solar revenues?Pablo Martinez Serrano, Iberia Industry Lead at Modo Energy, joins Ed Porter to break down why Spain's energy market defies easy assumptions, and what the Iberian blackout changed.They cover:- Why Spain's hydro fleet masked the need for ba...

Smart EV charging isn't just about saving money on your electricity bill, it's quietly becoming one of the most scalable sources of grid flexibility in Great Britain. Ohme has run the numbers: incentivising 22,000 customers to plug in more often drove a 32–37% increase in plug-in frequency, unlocking dispatchable flexibility across 60 National Grid events.In this episode, Ed is joined by Joshua Willetts and Dan Norton from Ohme. Josh is part of Ohme's customer operations team and starts the conversation with a live demo of the Ohme Home Pro, and then Dan Ohme's Commercial Director takes us through a deep dive of th...

Smart EV charging isn't just about saving money on your electricity bill, it's quietly becoming one of the most scalable sources of grid flexibility in Great Britain. Ohme has run the numbers: incentivising 22,000 customers to plug in more often drove a 32–37% increase in plug-in frequency, unlocking dispatchable flexibility across 60 National Grid events.In this episode, Ed is joined by Joshua Willetts and Dan Norton from Ohme. Josh is part of Ohme's customer operations team and starts the conversation with a live demo of the Ohme Home Pro, and then Dan Ohme's Commercial Director takes us through a deep dive of th...

Battery storage looks simple - a steel box that charges when prices are low and discharges when they're high. But financing a BESS project in Europe means underwriting a trading position: convex revenues, volatile returns, and a growing menu of contractual choices that each shift the risk profile in a different direction.Lisa McDermott, Managing Director and Head of Energy Transition Project Financing at ABN AMRO, has been structuring BESS deals across Europe since 2020. In this episode, she opens up the credit committee. What gets a project over the line, and what quietly stops it.Covered:- Why battery storage...

Battery storage looks simple - a steel box that charges when prices are low and discharges when they're high. But financing a BESS project in Europe means underwriting a trading position: convex revenues, volatile returns, and a growing menu of contractual choices that each shift the risk profile in a different direction.Lisa McDermott, Managing Director and Head of Energy Transition Project Financing at ABN AMRO, has been structuring BESS deals across Europe since 2020. In this episode, she opens up the credit committee. What gets a project over the line, and what quietly stops it.Covered:- Why battery storage...

The battery storage gold rush is over in most major markets. What's replaced it is more complex, more competitive, and if you're not careful with your contracts - potentially more exposed than the merchant era ever was. It is often thought that offtake deals like tolls de-risk a battery project, but that might be one of the biggest misconceptions in BESS right now.The market is maturing fast, but the players who thrive won't be the ones who got in first - they'll be the ones who understood the complexity earliest.Sam Harden is Global Director at Enfinity Global, joins...

The battery storage gold rush is over in most major markets. What's replaced it is more complex, more competitive, and if you're not careful with your contracts - potentially more exposed than the merchant era ever was. It is often thought that offtake deals like tolls de-risk a battery project, but that might be one of the biggest misconceptions in BESS right now.The market is maturing fast, but the players who thrive won't be the ones who got in first -they'll be the ones who understood the complexity earliest.Sam Harden is Global Director at Enfinity Global, joins Ed...

Most BESS revenue forecasts aren't wrong, they're just being used for the wrong thing. The gap between a valuation-grade forecast and what a project actually earns in a live market is where BESS developers win or lose. The developers who survive that gap are the ones who design for uncertainty from the start - not after the fact.Recorded live at the Investing in Battery Energy Storage conference, Paul Mason, Chief Investment Officer of Harmony Energy, joins Ed Porter for a return appearance on Transmission.They cover:- Why treating a revenue forecast as a fixed cash flow is the...

Most BESS revenue forecasts aren't wrong, they're just being used for the wrong thing. The gap between a valuation-grade forecast and what a project actually earns in a live market is where BESS developers win or lose. The developers who survive that gap are the ones who design for uncertainty from the start - not after the fact.Recorded live at the Investing in Battery Energy Storage conference, Paul Mason, Chief Investment Officer of Harmony Energy, joins Ed Porter for a return appearance on Transmission.They cover:- Why treating a revenue forecast as a fixed cash flow is the...

Battery storage in Africa is one of the most misunderstood opportunities in global energy. Only 8% of the continent’s hydro power has been tapped. In Malawi, just 14% of the population is connected to the grid. Africa needs to add an estimated 100 GW of capacity in the next decade and the fastest way is with renewables and storage. Michael Cupit develops BESS projects in Malawi and Kenya, and he’s spent years working inside the gap between how these markets look from the outside and how they actually operate on the ground.In this episode of Transmission, Ed Porter sits down with...

Battery storage in Africa is one of the most misunderstood opportunities in global energy. Only 8% of the continent’s hydro power has been tapped. In Malawi, just 14% of the population is connected to the grid. Africa needs to add an estimated 100 GW of capacity in the next decade and the fastest way is with renewables and storage. Michael Cupit develops BESS projects in Malawi and Kenya, and he’s spent years working inside the gap between how these markets look from the outside and how they actually operate on the ground.In this episode of Transmission, Ed Porter sits down with...

Biomethane currently supplies just 1% of UK gas demand. Could it reach 30% by 2050? Philipp Lukas, founder and CEO of Future Biogas, makes the case.The UK uses around 700 terawatt hours of gas every year. Even as electrification reduces that to 150–250 TWh by 2050, the gas that remains will be harder than ever to replace. Industrial heat, steel, glass, shipping, aviation.Biomethane, produced from organic waste and agricultural byproducts through anaerobic digestion, could supply 50–60 TWh of that demand. That's roughly 10 times what the UK produces today.In this episode of Transmission, Ed speaks with Philipp Lukas, CEO of Future Biogas. Philipp explains how the...

Biomethane currently supplies just 1% of UK gas demand. Could it reach 30% by 2050? Philipp Lukas, founder and CEO of Future Biogas, makes the case.The UK uses around 700 terawatt hours of gas every year. Even as electrification reduces that to 150–250 TWh by 2050, the gas that remains will be harder than ever to replace. Industrial heat, steel, glass, shipping, aviation.Biomethane, produced from organic waste and agricultural byproducts through anaerobic digestion, could supply 50–60 TWh of that demand. That's roughly 10 times what the UK produces today.In this episode of Transmission, Ed speaks with Philipp Lukas, CEO of Future Biogas. Philipp explains how the...

Eight in ten clean energy projects never make it through development. Not because of bad ideas, but because of how the process is run: sequential, analog, and fragmented across consultants, spreadsheets, and months of waiting.In this episode of Transmission, Alejandro speaks with Stuart Pomeroy from Paces .Stuart breaks down exactly why the traditional development model fails, what a parallel workflow looks like in practice, and how compressing land, environmental, interconnection, and permitting work into a single ecosystem can cut development timelines by more than half.You can watch or listen to new episodes every Tuesday and Thursday.Transmission is...

Eight in ten clean energy projects never make it through development. Not because of bad ideas, but because of how the process is run: sequential, analog, and fragmented across consultants, spreadsheets, and months of waiting.In this episode of Transmission, Alejandro speaks with Stuart Pomeroy from Paces .Stuart breaks down exactly why the traditional development model fails, what a parallel workflow looks like in practice, and how compressing land, environmental, interconnection, and permitting work into a single ecosystem can cut development timelines by more than half.You can watch or listen to new episodes every Tuesday and Thursday.Transmission is...

Tax insurance helps clean energy projects manage the risk of the IRS challenging their tax credits - like the Investment Tax Credit (ITC), Production Tax Credit (PTC), or bonus depreciation. Instead of carrying that uncertainty, developers and investors can transfer it to insurers, adding confidence to project financing.In this episode, Alejandro speaks with James Chenoweth Managing Director at Alliant Insurance Services, about how the market works and who’s using it. They also touch on the key areas of risk today, such as whether projects properly qualify for credits, potential recapture issues, and structuring above the project level, along wi...

Tax insurance helps clean energy projects manage the risk of the IRS challenging their tax credits - like the Investment Tax Credit (ITC), Production Tax Credit (PTC), or bonus depreciation. Instead of carrying that uncertainty, developers and investors can transfer it to insurers, adding confidence to project financing.In this episode, Alejandro speaks with James Chenoweth Managing Director at Alliant Insurance Services, about how the market works and who’s using it. They also touch on the key areas of risk today, such as whether projects properly qualify for credits, potential recapture issues, and structuring above the project level, along wi...

How does a major renewable operator decide what gets built, where, and with whose capital? Lolita Carry, Director of Portfolio Strategy at Engie North America, explains how Engie manages a 20GW BESS, wind, and solar pipeline across ERCOT, PJM, MISO, and CAISO.In this episode Alejandro de Diego speaks with Lolita Carry about how one of the US's largest battery storage operators structures its investment decisions across multiple ISO markets.They take a look at how Engie steers a 20GW development pipeline across ERCOT, PJM, MISO, and CAISO; the capital recycling model behind Engie's 2.7GW asset sale to SES; what...

How does a major renewable operator decide what gets built, where, and with whose capital? Lolita Carry, Director of Portfolio Strategy at Engie North America, explains how Engie manages a 20GW BESS, wind, and solar pipeline across ERCOT, PJM, MISO, and CAISO.In this episode Alejandro de Diego speaks with Lolita Carry about how one of the US's largest battery storage operators structures its investment decisions across multiple ISO markets.They take a look at how Engie steers a 20GW development pipeline across ERCOT, PJM, MISO, and CAISO; the capital recycling model behind Engie's 2.7GW asset sale to SES; what...