Group items matching

in title, tags, annotations or url

Here is the Brad Edwards interview. Dr. Edwards received his PhD in physics in 1990, and worked at Los Alamos National Lab for 11 years. After leaving Los Alamos, Dr. Edwards has dedicated his career to researching and developing the space elevator concept. All of his research indicates that the space elevator concept is valid and feasible. He currently heads a company called Black Line Ascension, which is actively promoting the space elevator concept. He has published several books on the space elevator, including The Space Elevator: A Revolutionary Earth-to-Space Transport System, and Leaving the Planet by Space Elevator.

To date, permanent magnet motors have not been widely used in many industrial applications as they require additional speed or position sensing mechanisms and control by high end drive units, making them relatively costly and complicated to install.  As a result, even though they are less efficient and considerably larger in size, induction motors have generally been the preferred choice for design and production engineers. Now, however, by using innovative algorithm control based on motor voltage and current output, the new AC650S Drive enables standard permanent magnet motors to be used in closed loop applications, without the need for additional sensors.  Engineers can therefore benefit from the energy savings that can be achieved from brushless motor such as Parker’s NX and ATEX EX Series, with savings of up to 12% for a 0.75kW system being possible; similarly, engineers have the opportunity to design more compact control systems, which can be as small as 25% the size of a conventional induction motor assembly.

Oil plays a negligible role in power generation and therefore does not compete with renewables in this respect. Renewables have become the dominant source of new power generation capacity over the last six years because they are competitive at the bottom end of the conventional fossil fuel power generation cost range – primarily with coal.

Oil plays a much more important role in the transport sector, which accounts for half of total demand, and where without low-emission transport policies in place, an extended period of low oil prices, may impact the speed of electric vehicle adoption.

Conversely, oil price volatility may undermine the viability of unconventional oil and gas resources as well long-term contracts, providing a window of opportunity to reduce or redirect fossil fuel subsidies towards clean energy, while minimising the potential of social disruption.

Wood Mackenzie expects 350 megawatts of floating offshore wind in operation by 2022 at various demonstration projects, and up to 10 gigawatts by 2030 with the right policy frameworks in place. Europe currently has a total of less than 50 megawatts of floating wind installed.

Future plans for energy production in the European Union as well as other locations call for a high penetration of renewable technologies (20% by 2020, and higher after 2020). The remaining energy requirements will be met by fossil fuels and nuclear energy. Smaller, less-capital intensive nuclear reactors are emerging as an alternative to fossil fuel and large nuclear systems. Approximately 50 small (<300 MWe) to medium-sized (<700 MWe) reactors (SMRs) concepts are being pursued for use in electricity and cogeneration (combined heat and power) markets. However, many of the SMRs are at the early design stage and full data needed for economic analysis or market assessment is not yet available. Therefore, the purpose of this study is to develop “target cost” estimates for reactors deployed in a range of competitive market situations (electricity prices ranging from 45–150 €/MWh). Parametric analysis was used to develop a cost breakdown for reactors that can compete against future natural gas and coal (with/without carbon capture) and large nuclear systems. Sensitivity analysis was performed to understand the impacts on competitiveness from key cost variables. This study suggests that SMRs may effectively compete in future electricity markets if their capital costs are controlled, favorable financing is obtained, and reactor capacity factors match those of current light water reactors. This methodology can be extended to cogeneration markets supporting a range of process heat applications.

Renewables are the fastest-growing source of world energy supply, but fossil fuels are still set to meet more than three-fourths of total energy needs in 2035 assuming current policies are unchanged

The U.S. Energy Information Administration (EIA) today released the complete version of the Annual Energy Outlook 2010 (AEO2010), which includes 38 sensitivity cases that show how different assumptions regarding market and policy drivers affect the Reference case projections that EIA previously released in December, 2009. In addition to considering alternative scenarios for oil prices, economic growth, and the uptake of more energy-efficient technologies, the AEO2010 includes cases that examine the impact of changes in selected policies, such as the extension of existing policies that are currently scheduled to sunset as well as the sensitivity of natural gas shale production to variations in drilling activity and the size of the resource base.

Smart metering is a sexy topic in the energy world, with nearly all Western economies considering plans for large deployments.  It can be used in many different ways but normally there is more than one goal behind a smart metering deployment: In the US, smart metering was, for the most part, driven by the desire to reduce the costs associated with manual meter reading, to reduce peak load and to enhance security of supply. In Italy, one of the key drivers was tackling energy theft and the cost of managing meters. In Ontario, it was peak shaving and the move toward time-of-use pricing. But if smart meters have the potential to address a number of issues, that potential can only be realised by flexible system design and deployment, avoiding excessive rigidity. In this case, one size most certainly does not fit all. We fear that the UK’s current plans for a nationwide rollout of smart meters may well be taking us down the wrong path by imposing standard solutions on the wrong part of the system.