ERCOT

Green Transition

Integrating distributed resources into the smart grid.

The remedy for America’s gravest economic woes may lie in a smart grid that can deliver vast amounts of clean, renewable energy while enhancing our energy security and democratizing our energy system. Although regulatory questions and technical challenges might dominate the industry’s short-term focus, the smart grid’s driving forces parallel America’s long-term national interests — a fact that should guide ongoing technology strategies and investment decisions.

Making Solar Grid-Friendly

If made fully “grid-friendly,” utility-scale solar ought to be able to act like a traditional power plant — aiding voltage stability and supporting grid integrity during transmission system disturbances.

The world’s power generation systems continue to transition to cleaner, more renewable and sustainable sources. That effort will be greatly aided by integrated and comprehensive grid interconnection solutions. Utility-scale, grid-connected solar photovoltaic (PV), as well as wind, has become increasingly attractive as a generation resource, both in terms of economics and operational fl exibility. The technology needed to interconnect these renewable power sources is now well proven in the field.

 

Vendor Neutral

(March 2011) TVA and EPRI demonstrate solar-assisted EV charging station; Ford unveils the all-electric Focus; Central Maine Power awards substation contracts; ERCOT deploys ABB software in nodal market; FirstSolar starts up PV plant for Southern Company and Ted Turner; plus contracts and announcements involving Open Systems International, Verizon, Suntech Power, Alcatel-Lucent, Siemens, Cisco, Elster, Sensus, Silver Spring Networks and others.

Capacity Contest

Raising the stakes in RTO markets.

Generators and demand-response providers are reaping rewards in forward capacity auctions, causing suppliers to go shopping for the most lucrative markets. Now the Midwest ISO is trying to catch up, by proposing its own auction for years-ahead resource bids. But does RTO shopping serve the interests of customers, who are legally entitled to rates that are just and reasonable? Why are some state policy makers advocating a return to old-school RFPs for long-term contracts?

Vendor Neutral

Burbank Water and Power selects Tropos Networks for smart grid project, Survalent Technology installs SCADA system for Pearl River Valley Electric Power Association, Gemma Power Systems signs contract with Bishop Hill Energy, American Superconductor selects subcontractors for the Tres Amigas SuperStation transmission hub in Clovis, N.M., and more ...

C&I Customers Get Smart

Technology creates new opportunities for demand- side management

Customer value is a key factor in any smart grid business case. But not all customers are created equal. In particular, commercial and industrial (C&I) customers have greatly different needs, considerations and sensitivities, compared to residential customers. As a result, demand response and efficiency programs won’t produce the same results across customer classes. Getting the most from the C&I market will depend on integrating smart grid with smart building technologies.

Leaning on Line Pack

Green energy mandates might overburden gas pipelines.

Market rules could evolve to compensate gas suppliers for pressurizing pipelines when needed on short notice. Enhanced ancillary services will require innovative strategies using line pack in interstate pipelines and stepped up communication among gas and electric market participants to preserve reliability objectives in gas and electric markets.

DR Distortion

Are subsidies the best way to achieve smart grid goals?

FERC has proposed that wholesale energy markets should subsidize load reductions with full LMP (locational marginal price), without deducting the customers’ retail savings. Such a policy could distort the market, and other solutions might achieve the same objectives more efficiently.

Tres Amigas Tie Up

Synchronizing networks to bring green power to market.

In order to fully integrate wind and other dispersed sources of energy into the system, America’s patchwork transmission networks need to be more closely interconnected and synchronized. An advocate for the Tres Amigas merchant transmission project explains how the proposed facility will integrate the grid.

Outsmarting the Grid

A trio of eager tech startups confronts an industry intent on preserving the status quo.

In light of all the excitement created by smart-grid regulatory initiatives and stimulus funding, three clever tech startups have come forward with proposals for novel grid projects. In California, Western Grid Development proposes to install energy storage devices ranging in size from 10 to 50 MW at various discrete and strategic locations in PG&E’s service territory where the California ISO has identified reliability problems. Second, a company called Primary Power proposes to deploy a total of four advanced, 500-MVAR static VAR compensators (SVC) at three separate locations within the PJM footprint. Third, in Clovis, N.M., Tres Amigas plans to allow power producers to move market-relevant quantities of electric power and energy between and among the nation’s three asynchronous transmission grids: ERCOT and the Eastern and Western Interconnections.