hydrogen

REGENERATION OF A HYDROGEN IMPURITY TRAP USING THE HEAT EXITING A HYDRIDE TANK

The storing and destocking of hydrogen in a hydride tank (10) comprises purification performed in at least one trap (1, 1A, 1B) filtering the impurities contained in the hydrogen entering the tank to be stored and regeneration of said at least one trap, using the heat carried by the hydrogen exiting the tank after it has been destocked.




hydrogen

Methods and Systems for Selective Hydrogen Gas Extraction for Dissolved Gas Analysis Applications

Systems and methods for selectively extracting hydrogen gas dissolved in oil are provided. In one embodiment, a system includes a selectively permeable membrane provided at a point of contact between oil and a sensor chamber. The selectively permeable membrane has a hydrogen specificity and a thickness selected to minimize detection of further gasses dissolved in the oil by a hydrogen gas sensor cross-sensitive to the further gasses. The selectively permeable membrane can include polyimide. The further gasses include carbon monoxide, acetylene, and ethylene. The system can include a further membrane and a porous metal disc. The porous metal disc is bound to the selectively permeable membrane by using the further membrane as an adhesive layer and by applying pressure and temperature. The porous metal disc supports the selectively permeable membrane and the further membrane against pressure of the oil when exposed to a vacuum. The further membrane includes fluorohydrocarbons.




hydrogen

Gas generator and processes for the conversion of a fuel into an oxygen-depleted gas and/or hydrogen-enriched gas

A gas generator and process for converting a fuel into an oxygen-depleted gas and/or hydrogen-enriched gas. The gas generator is preferably used for generating protection gas or reducing gas for start up, shut down or emergency shut down of a SOFC or SOEC. The process for converting fuel into oxygen-depleted gas and/or a hydrogen-enriched gas includes combusting the fuel in a primary catalytic burner with an oxygen-containing gas to produce a flue gas with oxygen, combusting or partially oxidizing the flue gas comprising oxygen with excess fuel in a secondary catalytic burner to produce a gas with hydrogen and carbon monoxide, and reducing the trace amounts of oxygen from the gas comprising traces of oxygen and obtaining an oxygen-depleted gas, or reducing the carbon monoxide present in the gas by conversion to carbon dioxide or methane to obtain a hydrogen-enriched gas.




hydrogen

Fuel processor and method for generating hydrogen rich gas

A fuel processor for generating hydrogen rich gas or cleaned hydrogen rich gas from hydrocarbon fuel includes an inner housing and an outer housing defining a mantel space between them, wherein at least one fuel reformer unit for reforming hydrocarbon fuel to a hydrogen rich gas and optionally a gas-cleaning unit for cleaning the hydrogen rich gas from unwanted by-products are arranged in the inner housing. The fuel processor further includes a processor inlet for introducing hydrocarbon fuel into the inner housing and a processor outlet for releasing cleaned hydrogen rich gas from the inner housing. The outer housing further includes a fluid inlet for introducing a heat transporting fluid into the mantel space. The inner housing includes at least one opening for providing a fluid-connection between the inner housing and the mantel space. A method for operating such a fuel processor is also provided.




hydrogen

Hydrogen generator system with liquid interface

A hydrogen generator system and a fuel cell system including the hydrogen generator system are disclosed. The hydrogen generator system includes a replaceable cartridge that is removably contained within the system, and an external pump disposed outside the cartridge housing and configured to pump a fluid. The cartridge includes a cartridge housing, a liquid reservoir disposed within the cartridge housing and configured to contain a liquid including a reactant, a reaction area disposed within the cartridge housing and within which the reactant reacts to produce hydrogen gas, a liquid flow path disposed within the cartridge housing and through which the reactant liquid can flow from the liquid reservoir to the reaction area, and an internal pump disposed within the cartridge housing that can be operated by the external pump and is configured to transport the reactant liquid through the liquid flow path.




hydrogen

Hydrogen membrane separator

The present application is directed to a hydrophobic membrane assembly (28) used within a gas-generating apparatus. Hydrogen is separated from the reaction solution by passing through a hydrophobic membrane assembly (28) having a hydrophobic lattice like member (36) disposed within a hydrogen output composite (32) further enhancing the ability of the hydrogen output composite's ability to separate out hydrogen gas and prolonging its useful life.




hydrogen

Method and system for producing integrated hydrogen from organic matter

A method for production of hydrogen from organic matter, includes: pyrolysis of a feed of organic matter by passing a gaseous treatment stream essentially having carbon dioxide through the organic matter, the pyrolysis producing, on the one hand, a pyrolysis gas stream having the gaseous treatment stream, steam and volatile organic compounds originating from the organic matter, and on the other hand pyrolysis chars having carbon components; oxycombustion of at least a proportion of the volatile organic compounds present in the pyrolysis gas stream, by injection of oxygen, upstream of a layer of redox filtering matter comprising high-temperature carbon components; and after the oxycombustion, passing the oxidized pyrolysis gas stream through the redox layer, the passage producing a synthesis gas stream comprising hydrogen obtained by deoxidation of steam by the high-temperature carbon components.




hydrogen

System and process for making hydrogen from a hydrocarbon stream

This invention relates to a process and apparatus for the production of pure hydrogen by steam reforming. The process integrates the steam reforming and shift reaction to produce pure hydrogen with minimal production of CO and virtually no CO in the hydrogen stream, provides for CO2 capture for sequestration, employs a steam reforming membrane reactor, and is powered by heat from the convection section of a heater.




hydrogen

Hydrogen generator with improved fluid distribution

The invention is a hydrogen generator including a housing, a reaction area, a fluid reservoir, a pellet comprising a first reactant within the reaction area, a fluid comprising a second reactant within the fluid reservoir, a fluid flow path between the fluid reservoir and the reaction area, and a hydrogen outlet. The fluid flow path comprises a follower assembly biased toward the pellet, the follower assembly includes an articulated joint and a follower, and the second reactant can react with the first reactant in the reaction area to produce hydrogen gas and byproducts.




hydrogen

Conversion of C—O—H compounds into hydrogen for power or heat generation

Methods are disclosed for generating electrical power from a compound comprising carbon, oxygen, and hydrogen. Water is combined with the compound to produce a wet form of the compound. The wet form of the compound is transferred into a reaction processing chamber. The wet form of the compound is heated within the reaction chamber such that elements of the compound dissociate and react, with one reaction product comprising hydrogen gas. The hydrogen gas is processed to generate electrical power.




hydrogen

Aqueous process for recovering sulfur from hydrogen sulfide-bearing gas

A process for recovering sulfur from a hydrogen sulfide-bearing gas utilizes an aqueous reaction medium, a temperature of about 110-150° C., and a high enough pressure to maintain the aqueous reaction medium in a liquid state. The process reduces material and equipment costs and addresses the environmental disadvantages associated with known processes that rely on high boiling point organic solvents.




hydrogen

Method of enhancing thermal conductivity in hydrogen storage systems

A method of forming a material for reversible hydrogen storage within a storage tank includes charging a mixture of a metal amide and a metal hydride to the storage tank, and chemically reacting the mixture at a reaction condition within the storage tank to form a thermally conducting composite material situated in the storage tank and for reversibly storing hydrogen. The composite material includes a three-dimensional and interconnected framework including a conductive metal. A method for reversibly storing hydrogen includes providing a storage tank and in situ chemically forming a composite material by charging a mixture of a metal amide and a metal hydride to the storage tank and chemically reacting the mixture at a reaction condition to form a thermally conducting composite material including a metal hydride and a substantially unreactive elemental metal framework. Hydrogen is absorbed into the composite material and is desorbed from the composite material.




hydrogen

Combined on-board hydride slurry storage and reactor system and process for hydrogen-powered vehicles and devices

An on-board hydride storage system and process are described. The system includes a slurry storage system that includes a slurry reactor and a variable concentration slurry. In one preferred configuration, the storage system stores a slurry containing a hydride storage material in a carrier fluid at a first concentration of hydride solids. The slurry reactor receives the slurry containing a second concentration of the hydride storage material and releases hydrogen as a fuel to hydrogen-power devices and vehicles.




hydrogen

Hydrogen storage tank

The tank is of the type including a container (4) for housing hydrogen, and metallic hydride placed inside the container. According to one aspect of the invention, it includes at least one solid body (6) formed of a compacted material including metallic hydride and a matrix. Application in particular for tanks for internal combustion engines or for fuel cells, in particular for motor vehicles, as well as for any stationary or mobile application using hydrogen.




hydrogen

Hydrogen storage tank having metal hydrides

A hydrogen storage tank by absorption into a hydrogen storage material, the tank having a longitudinal axis and including an enclosure and an inner structure provided within the enclosure. The inner structure includes a plurality of stages and a heat exchange system within the inner structure, each stage including a plurality of compartments distributed into a plurality of rows directed along the longitudinal direction, each compartment having a semi-cylindrical shape, and each compartment containing a hydrogen storage material, wherein the material has been introduced through the opening.




hydrogen

MAGNETIC TUNNEL JUNCTION ENCAPSULATION USING HYDROGENATED AMORPHOUS SEMICONDUCTOR MATERIAL

Embodiments are directed to an electromagnetic memory device having a memory cell and an encapsulation layer formed over the memory cell. The memory cell may include a magnetic tunnel junction (MTJ), and the encapsulation layer may be formed from a layer of hydrogenated amorphous silicon. Amorphous silicon improves the coercivity of the MTJ but by itself is conductive. Adding hydrogen to amorphous silicon passivates dangling bonds of the amorphous silicon, thereby reducing the ability of the resulting hydrogenated amorphous silicon layer to provide a parasitic current path to the MTJ. The hydrogenated amorphous silicon layer may be formed using a plasma-enhanced chemical vapor deposition, which can be tuned to enable a hydrogen level of approximately 10 to approximately 20 percent. By keeping subsequent processing operations at or below about 400 Celsius, the resulting layer of hydrogenated amorphous silicon can maintain its hydrogen level of approximately 10 to 20 percent.




hydrogen

ENHANCEMENT OF SPIN TRANSFER TORQUE MAGNETORESISTIVE RANDOM ACCESS MEMORY DEVICE USING HYDROGEN PLASMA

A method of making a MRAM device includes forming a magnetic tunnel junction on an electrode, the magnetic tunnel junction comprising a reference layer positioned in contact with the electrode, a tunnel barrier layer arranged on the reference layer, and a free layer arranged on the tunnel barrier layer; and depositing an encapsulating layer on and along sidewalls of the magnetic tunnel junction; wherein the exposing of the magnetic tunnel junction to hydrogen plasma is performed at a temperature from about 150 to about 250° C. An MRAM device including an encapsulating layer comprising either silicon nitride or aluminum oxide is also provided.




hydrogen

University’s hydrogen car to star at top engineering show

Coventry University and its successful spin-off firm Microcab are set to show off their zero-emission vehicle expertise at the 2013 Automotive Engineering Show at the NEC in Birmingham next week.




hydrogen

$300 million clean energy fund to back hydrogen projects

The Morrison Government is pushing ahead with a plan to become a world leading producer and exporter of hydrogen.



  • Government and Politics
  • Science and Technology
  • Energy

hydrogen

Donor glucose-6-phosphate dehydrogenase deficiency decreases blood quality for transfusion

BACKGROUND Glucose-6-phosphate dehydrogenase (G6PD) deficiency decreases the ability of red blood cells (RBCs) to withstand oxidative stress. Refrigerated storage of RBCs induces oxidative stress. We hypothesized that G6PD-deficient donor RBCs would have inferior storage quality for transfusion as compared with G6PD-normal RBCs.METHODS Male volunteers were screened for G6PD deficiency; 27 control and 10 G6PD-deficient volunteers each donated 1 RBC unit. After 42 days of refrigerated storage, autologous 51-chromium 24-hour posttransfusion RBC recovery (PTR) studies were performed. Metabolomics analyses of these RBC units were also performed.RESULTS The mean 24-hour PTR for G6PD-deficient subjects was 78.5% ± 8.4% (mean ± SD), which was significantly lower than that for G6PD-normal RBCs (85.3% ± 3.2%; P = 0.0009). None of the G6PD-normal volunteers (0/27) and 3 G6PD-deficient volunteers (3/10) had PTR results below 75%, a key FDA acceptability criterion for stored donor RBCs. As expected, fresh G6PD-deficient RBCs demonstrated defects in the oxidative phase of the pentose phosphate pathway. During refrigerated storage, G6PD-deficient RBCs demonstrated increased glycolysis, impaired glutathione homeostasis, and increased purine oxidation, as compared with G6PD-normal RBCs. In addition, there were significant correlations between PTR and specific metabolites in these pathways.CONCLUSION Based on current FDA criteria, RBCs from G6PD-deficient donors would not meet the requirements for storage quality. Metabolomics assessment identified markers of PTR and G6PD deficiency (e.g., pyruvate/lactate ratios), along with potential compensatory pathways that could be leveraged to ameliorate the metabolic needs of G6PD-deficient RBCs.TRIAL REGISTRATION ClinicalTrials.gov NCT04081272.FUNDING The Harold Amos Medical Faculty Development Program, Robert Wood Johnson Foundation grant 71590, the National Blood Foundation, NIH grant UL1 TR000040, the Webb-Waring Early Career Award 2017 by the Boettcher Foundation, and National Heart, Lung, and Blood Institute grants R01HL14644 and R01HL148151.




hydrogen

C&E presenter talks hydrogen fuel cells

In the mid 2000s, everyone from Top Gear host Jeremy Clarkson to President George W. Bush touted hydrogen fuel cells, or HFCs, which combine oxygen from the air with hydrogen to create electricity, as the future of motoring. All these years later,




hydrogen

Could life thrive on hydrogen-rich alien worlds?

Life can thrive in a 100% hydrogen atmosphere, according to a new study. The finding could completely change our understanding of how (and where) life might exist in the universe.




hydrogen

Risk of Misinterpreting Hydrogen Peroxide Indicator Colors for Vapor Sterilization: Letter to Health Care Providers




hydrogen

New Hydrogen on Tap technology to reduce gasoline usage and lower emissions

Kurt Koehler, founder and president of AlGalCo, shows his HOT (Hydrogen on Tap) system.

       




hydrogen

Crystallographic and kinetic analyses of the FdsBG subcomplex of the cytosolic formate dehydrogenase FdsABG from Cupriavidus necator [Molecular Biophysics]

Formate oxidation to carbon dioxide is a key reaction in one-carbon compound metabolism, and its reverse reaction represents the first step in carbon assimilation in the acetogenic and methanogenic branches of many anaerobic organisms. The molybdenum-containing dehydrogenase FdsABG is a soluble NAD+-dependent formate dehydrogenase and a member of the NADH dehydrogenase superfamily. Here, we present the first structure of the FdsBG subcomplex of the cytosolic FdsABG formate dehydrogenase from the hydrogen-oxidizing bacterium Cupriavidus necator H16 both with and without bound NADH. The structures revealed that the two iron-sulfur clusters, Fe4S4 in FdsB and Fe2S2 in FdsG, are closer to the FMN than they are in other NADH dehydrogenases. Rapid kinetic studies and EPR measurements of rapid freeze-quenched samples of the NADH reduction of FdsBG identified a neutral flavin semiquinone, FMNH•, not previously observed to participate in NADH-mediated reduction of the FdsABG holoenzyme. We found that this semiquinone forms through the transfer of one electron from the fully reduced FMNH−, initially formed via NADH-mediated reduction, to the Fe2S2 cluster. This Fe2S2 cluster is not part of the on-path chain of iron-sulfur clusters connecting the FMN of FdsB with the active-site molybdenum center of FdsA. According to the NADH-bound structure, the nicotinamide ring stacks onto the re-face of the FMN. However, NADH binding significantly reduced the electron density for the isoalloxazine ring of FMN and induced a conformational change in residues of the FMN-binding pocket that display peptide-bond flipping upon NAD+ binding in proper NADH dehydrogenases.




hydrogen

Crystallographic and kinetic analyses of the FdsBG subcomplex of the cytosolic formate dehydrogenase FdsABG from Cupriavidus necator [Molecular Biophysics]

Formate oxidation to carbon dioxide is a key reaction in one-carbon compound metabolism, and its reverse reaction represents the first step in carbon assimilation in the acetogenic and methanogenic branches of many anaerobic organisms. The molybdenum-containing dehydrogenase FdsABG is a soluble NAD+-dependent formate dehydrogenase and a member of the NADH dehydrogenase superfamily. Here, we present the first structure of the FdsBG subcomplex of the cytosolic FdsABG formate dehydrogenase from the hydrogen-oxidizing bacterium Cupriavidus necator H16 both with and without bound NADH. The structures revealed that the two iron-sulfur clusters, Fe4S4 in FdsB and Fe2S2 in FdsG, are closer to the FMN than they are in other NADH dehydrogenases. Rapid kinetic studies and EPR measurements of rapid freeze-quenched samples of the NADH reduction of FdsBG identified a neutral flavin semiquinone, FMNH•, not previously observed to participate in NADH-mediated reduction of the FdsABG holoenzyme. We found that this semiquinone forms through the transfer of one electron from the fully reduced FMNH−, initially formed via NADH-mediated reduction, to the Fe2S2 cluster. This Fe2S2 cluster is not part of the on-path chain of iron-sulfur clusters connecting the FMN of FdsB with the active-site molybdenum center of FdsA. According to the NADH-bound structure, the nicotinamide ring stacks onto the re-face of the FMN. However, NADH binding significantly reduced the electron density for the isoalloxazine ring of FMN and induced a conformational change in residues of the FMN-binding pocket that display peptide-bond flipping upon NAD+ binding in proper NADH dehydrogenases.




hydrogen

Highly efficient hydrogen gas production using sunlight, water and hematite

(Kobe University) Hydrogen is a possible next generation energy solution, and it can be produced from sunlight and water using photocatalysts. A research group from Kobe University has developed a strategy that greatly increases the amount of hydrogen produced using hematite photocatalysts. In addition to boosting the high efficiency of what is thought to be the world's highest performing photoanode, this strategy will be applied to artificial photosynthesis and solar water-splitting technologies via university-industry collaborations.




hydrogen

Edinburgh firm to open first public hydrogen refuelling station in central belt

AN EDINBURGH-BASED hydrogen technology firm is to open the first public hydrogen refuelling station for vehicles in Scotland’s central belt.




hydrogen

Edinburgh clean energy company in six-figure hydrogen fuel delivery deal

A SCOTTISH clean energy company has secured a key part in a six-figure contract for a hydrogen fuel project in Northern Ireland.




hydrogen

Early Neonatal Bilirubin, Hematocrit, and Glucose-6-Phosphate Dehydrogenase Status

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an important risk factor for neonatal jaundice in Nigeria. It is associated with severe hyperbilirubinemia among infants exposed to icterogenic agents. Elevated bilirubin levels have occasionally been demonstrated in G6PD-deficient infants without exposure to icterogenic agents.

Even without exposure to known icterogens, G6PD-deficient infants have a more rapid hematocrit decline and higher bilirubin levels than their G6PD-intermediate and G6PD-normal counterparts throughout the first week of life. (Read the full article)




hydrogen

Point-of-Care Quantitative Measure of Glucose-6-Phosphate Dehydrogenase Enzyme Deficiency

Glucose-6-phosphate dehydrogenase deficiency remains a global as well as a North American burden for extreme hyperbilirubinemia and kernicterus and is often unpredictable during the first few days after birth. Newborn screening for this enzyme deficiency is not universally available but debated.

Point-of-care screening, using digital microfluidics, provides accurate, low blood volume, and affordable technology for rapid newborn glucose-6-phosphate dehydrogenase enzyme screening that could guide clinicians before infants’ discharge from well-child nurseries and meet existing American Academy of Pediatrics’ recommendations. (Read the full article)




hydrogen

Hydrogen is the fuel of the future. For real this time, IEA Says

Hydrogen, which has been touted as the fuel of the future much of the past five decades, may finally be on the verge of converting its potential to reality.




hydrogen

Net zero carbon emissions ‘impossible’ without hydrogen says UK energy alliance

The UK’s North West Hydrogen Alliance (NWHA) is calling for government investment in hydrogen projects to meet ambitious carbon reductions targets in Britain.




hydrogen

The IEA’s hydrogen report doesn’t miss the point. It just buries It.

The International Energy Agency (IEA) recently released a major new report on hydrogen, underscoring the remarkable political and business momentum surrounding the fossil fuel alternative, and touting its potential as a vital component of global efforts to build a “clean, secure, and affordable energy future.” The report takes a bold and prescient stance, and has rightfully inspired a torrent of press coverage about the future of hydrogen and its role in the renewable energy mix.




hydrogen

Hydrogen is expected to account for 10% of China’s energy network by 2050

The Chinese government recently issued a whitepaper on the status and prospects of the hydrogen fuel and fuel cell sectors, indicating that energy derived from hydrogen will become an important part of the Chinese energy network.




hydrogen

BNEF finds that hydrogen’s plunging price could boost its role in a carbon-free future

The cost of producing hydrogen gas with renewables is likely to plummet in the coming decades, making one of the most radical technologies for reducing greenhouse gases economical.




hydrogen

Hydrogen: key to a zero-carbon future, or a costly distraction?

The U.K.’s push for a low-carbon economy has some notable successes, but the hardest part of the battle has barely started.




hydrogen

It’s clean, powerful and available: Are you ready for hydrogen energy?

As the world responds to the challenges of climate change, energy systems are evolving, and evolving fast. The past 10 years have seen the rise (and dramatic cost reduction) of renewable energy such as wind and solar, to the extent that they are no longer considered alternative energy. They have become mainstream energy sources. Now, what will be the “next big thing” as the world shifts to a low carbon future?




hydrogen

Hydrogen is the fuel of the future. For real this time, IEA Says

Hydrogen, which has been touted as the fuel of the future much of the past five decades, may finally be on the verge of converting its potential to reality.




hydrogen

Net zero carbon emissions ‘impossible’ without hydrogen says UK energy alliance

The UK’s North West Hydrogen Alliance (NWHA) is calling for government investment in hydrogen projects to meet ambitious carbon reductions targets in Britain.




hydrogen

BNEF finds that hydrogen’s plunging price could boost its role in a carbon-free future

The cost of producing hydrogen gas with renewables is likely to plummet in the coming decades, making one of the most radical technologies for reducing greenhouse gases economical.




hydrogen

Hydrogen-powered Vehicles Seek Another Shot at Green-Car Race

It’s lighter, abundant and finally ready to take on Tesla. Hydrogen-powered vehicles are gearing up to challenge electric vehicles again in the race for mass-market clean cars. This week, a much larger group of companies signed on to a global coalition aimed at drumming up government support for the technology that Tesla Inc. Chief Executive Officer Elon Musk has derided as “ mind-bogglingly stupid” for cars. The firms also pledged to find a cleaner way to produce the gas.




hydrogen

Hydrogen: key to a zero-carbon future, or a costly distraction?

The U.K.’s push for a low-carbon economy has some notable successes, but the hardest part of the battle has barely started.




hydrogen

Utah clean energy storage project to combine hydrogen, salt dome assets

Herbert was joined by Mitsubishi Hitachi Power Systems (MHPS) and Magnum Development at the event to detail the Advanced Clean Energy Storage (ACES) project in central Utah. They called it the largest such energy storage project in the world.




hydrogen

It’s clean, powerful and available: Are you ready for hydrogen energy?

As the world responds to the challenges of climate change, energy systems are evolving, and evolving fast. The past 10 years have seen the rise (and dramatic cost reduction) of renewable energy such as wind and solar, to the extent that they are no longer considered alternative energy. They have become mainstream energy sources. Now, what will be the “next big thing” as the world shifts to a low carbon future?




hydrogen

Hydrogen: key to a zero-carbon future, or a costly distraction?

The U.K.’s push for a low-carbon economy has some notable successes, but the hardest part of the battle has barely started.




hydrogen

Utah clean energy storage project to combine hydrogen, salt dome assets

Herbert was joined by Mitsubishi Hitachi Power Systems (MHPS) and Magnum Development at the event to detail the Advanced Clean Energy Storage (ACES) project in central Utah. They called it the largest such energy storage project in the world.




hydrogen

It’s clean, powerful and available: Are you ready for hydrogen energy?

As the world responds to the challenges of climate change, energy systems are evolving, and evolving fast. The past 10 years have seen the rise (and dramatic cost reduction) of renewable energy such as wind and solar, to the extent that they are no longer considered alternative energy. They have become mainstream energy sources. Now, what will be the “next big thing” as the world shifts to a low carbon future?




hydrogen

Hydrogen is the fuel of the future. For real this time, IEA Says

Hydrogen, which has been touted as the fuel of the future much of the past five decades, may finally be on the verge of converting its potential to reality.




hydrogen

Net zero carbon emissions ‘impossible’ without hydrogen says UK energy alliance

The UK’s North West Hydrogen Alliance (NWHA) is calling for government investment in hydrogen projects to meet ambitious carbon reductions targets in Britain.