Renewable energy sources have disadvantages as well as advantages, however. Although their costs have decreased in recent years, many renewables are still more costly than traditional sources. Some are also available only intermittently; for example, wind can be variable and hydroelectric is seasonal. And while many people are in favor of renewables in principle, many are also unhappy when faced with the prospect of a windmill or a trash-burning power plant in their neighborhood. These facilities face the same siting and investment difficulties that any electrical facility would, as the developers of a proposed wind farm off the coast of Cape Cod have discovered in recent years.

...the MEA Report can be used to estimate the value (avoided emissions) of Renewable Energy Certificates (REC) by providing both REC suppliers and stakeholders with information that can be used to communicate the environmental benefits of RECs and works to enhance the overall REC marketplace.

Editor's Note: As noted below under Methodology [emphasis added], this report appears to substantiate the point that wind energy would not backdown "baseload" generation.

This presentation indicates that for New England the increasing demand for summer-time electricity is greater and increasing faster than winter-time demand. The fast-rising need for power in summer will likely result in construction of new power plants to keep ahead of demand - although inland industrial wind plants will not be able to contribute much to this demand period due to their very low capacity factor during summer months.

Comments to FERC by the New England Conference of Public Utility Commissions and the Vermont Department of Public Service