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The last decade has seen a speedy growth within the generation of electric power from renewable sources. This development has been the result of several stimuli but the most potent has been world warming and a consequent move to scale back emissions of CO2 into the atmosphere. While worldwide agreement on motion to combat global warming stays elusive, many international locations and regions are pursuing their very own renewable policies with the result that all sorts of renewable producing technology have benefited.

In 2004, in response to Renewable Energy Policy Network for the twenty first Century the full global renewable capacity was 160GW. This rose to 182GW in 2005, 207GW in 2006, 240GW in 2007 and 280GW in 2008. At the tip of 2008 giant hydropower capability was 860GW, making a total of 1,140GW.

Hydropower aside, a lot of this new renewable capability is from wind turbines which were accountable for 121GW of the 2008 total. Small hydropower added another 85GW, biomass 50-60GW and solar power up to 14GW. With the exception of biomass energy generation all these renewable sources provide intermittent technology and this, together with the remote location of some renewable resources, has created a spread of integration issues for system operators.

These problems fall into two principal categories, structural issues and balancing problems. The structural problems are related to the bodily changes essential to accommodate new renewable capability on a grid. These changes could involve the addition of latest transmission lines with a view to bring wind power from a remote but resource-rich region to the facilities of demand or it would involve both additional stability measures and transmission capacity being added to an existing grid structure to cope with differing energy flows arising from the injection of renewably-generated electrical power.

Key features of this report

• Analysis of key renewable technologies ideas and components.
• Assessment of structural costs and grid integration.
• Insight relating to balancing issues, intermittency, power supply and demand
• Examination of the key grid expertise introductions and innovations.
• Identification of the important thing trends shaping the market, as well as an evaluation of emerging trends that may drive innovation moving forward.

Scope of this report

• Realize up to date competitive intelligence via a comprehensive evaluate of grid integration technologies ideas in electricity power generation markets.
• Assess the emerging trends in renewable applied sciences – solar, onshore and offshore wind, solar photovoltaic and solar thermal, biomass, geothermal and hydropower.
• Identify which key traits will offer the best growth potential and be taught which technology trends are prone to allow better market impact.
• Compare how manufacturers are growing new grid integration and energy storage technologies.
• Quantify prices of renewable integration technologies, with comparisons against other forms of power generation technology, structural costs, and cost of electricity.

Key Market Issues

• Key renewable applied sciences and their traits :- There are six principal types of renewable generation in use today, wind power, solar power, geothermal power, marine power, hydropower and biomass power generation. Each has completely different characteristics which influence the convenience with which it can be integrated into a traditional grid system.

• Structural prices and grid integration :- Many renewable sources are located at sites remote from such current grids which must be extended and tailored to accommodate them. This is the main source of structural costs related to renewable generation. An adapted grid should also take account of the truth that renewable generation primarily based on intermittent sources of power don’t produce electricity the whole time, a factor which can influence capacity planning for brand new transmission lines.

• Balancing points and different operational concerns :- The addition of intermittent renewable generation to a transmission and distribution grid affects grid security and stability in various ways. The most essential of these arises because of the each intermittent and unpredictable nature of some renewable resources of which essentially the most salient is wind power. The system operator’s task is to take care of the balance between supply and demand, era and load. Load is variable and to a level unpredictable so the grid already has strategies to cope with such situations.

• Energy storage :- One of the best methods of coping with the problems associated with integration of intermittent renewable generating capacity into a grid is by including energy storage. The most widely used type today is pumped storage hydropower and this is the only kind for which a significant and widespread capability exists. Other technologies embrace Compressed air energy storage, Battery energy storage, Flywheels, Hydrogen storage. Superconducting coils also can provide grid storage and help services. An further alternative that might develop into important sooner or later is the plug-in electric vehicle.

Key findings from this report

• In 2008, the total global renewable non-hydropower capability was 280GW. At the end of 2008 large hydropower capability was 860GW, making a total of 1,140GW.
• Estimates in the Netherlands for the connection of offshore capability put the cost at between €60/kW and €110/kW.
• A two-day ahead forecast should be able to predict wind output to a root mean square error (RMSE) of lower than 10% (normalized to the put in capacity).
• For 10% wind penetration the overall wind integration balancing price is between US$1.3/MWh and US$1.4/MWh
• With 20% wind penetration, the balancing cost in Norway and Sweden was estimated to be €0.50/MWh and €0.66/MWh respectively.

Key questions answered

• What are the drivers shaping and influencing renewable know-how grid integration in the electricity industry?
• What are the balancing requirements of the various renewable technologies?
• What is renewable grid integration know-how going to cost?
• Which renewable technologies would be the winners and which the losers in terms power generated, price and viability?
• Which energy storage technology sorts are prone to find favor with manufacturers transferring forward?
• Which ancillary providers are gaining in recognition and why?

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