Several states have embraced net metering in order to encourage the adoption of solar energy and other distributed generation. Sometimes referred to as “running a meter backwards,” net metering allows people to generate their own electricity, export any excess electricity to the grid, and get paid for providing this excess energy to the utility who may use it to power nearby homes or manage overall electricity demand.
Net metering leads to lower – or in some cases negative – electricity bills without having to invest in expensive batteries to store excess energy, which can be cost-prohibitive. By generating energy on-site where it’s consumed, net metering also reduces the strain on distribution systems and cuts the amount of electricity lost to long-distance transmission and distribution (estimated at seven percent in the U.S.). Net metering, moreover, tends to reduce greenhouse gas emissions by incentivizing people to adopt renewable energy and become more aware of energy-saving opportunities. Read More
Considering installing solar panels or weatherization to go along with the remodeling project you’ve been thinking about? Energy bills would drop and your carbon footprint would shrink, a true win-win.
Whether it’s financially doable may depend on where you live, of course. Clean energy financing in the United States is a hodgepodge of public and private-sector programs that vary considerably across, and within, state boundaries.
What will it take?
Connecticut homeowners in some – but not all – cities can tap into the state’s Smart-E loans available from five- to 12-year terms at an interest rate that won’t exceed 6.99 percent, and with no equity down. Read More
Revolutionary paradigm shifts often require cohesive development of many moving parts, some of which advance more quickly than others in practice. Germany’s revolutionary Energiewende (or “energy transition”) is no exception. Set to achieve nearly 100 percent renewable energy by 2050, Germany’s Energiewende is one of the most aggressive clean energy declarations in the world. While growth of Germany’s installed renewables capacity has been explosive in recent years, optimization measures designed for Energiewende have manifested at a relatively slow pace.
Germany already has one of the most reliable electric grids in the world, but as implementation of Energiewende continues, optimization will be key to its future success. This will require better sources of backup generation to accommodate the intermittency of wind and solar, a dynamic energy market that ensures fair compensation for this backup, and a more flexible, resilient grid enabled by smart grid technologies to fully optimize demand side resources and a growing renewable energy portfolio. Read More
For more than 100 years, the U.S. power system relied on fossil-fueled power plants to meet our growing energy demand. Now, clean energy resources like renewables are quickly changing our energy mix. But what happens when the sun isn’t shining or the wind isn’t blowing? What about when power demand momentarily outpaces supply? That’s where batteries and energy storage come in, offering a fundamental, even disruptive change to the U.S. electricity system as we know it.
Batteries are energy game-changers
Today’s electricity system not only overproduces to be prepared for unforeseen problems, it also deploys dirty “peaker” plants that fire up during those few times per year when electricity demand is high (like during a heat wave) and the electric grid is stressed. With batteries, there’s no need for either overproduction or inefficient backup reserves, ultimately saving both utilities and customers money.
Batteries can provide bursts of electricity incredibly fast, often in milliseconds, and with far quicker reaction times than traditional power plants. As a result, energy storage helps the electric grid absorb and regulate power fluctuations, providing electricity fast, when and where it’s needed. Since the supply and demand of power must be carefully balanced, this ability helps prevent the grid from experiencing brownouts or blackouts. Read More
On the heels of a recent Forbes blog post where I call out Texas' Comptroller for playing favorites in her biased scrutiny of Texas' wind industry, comes another Forbes piece by James Taylor from the Heartland Institute. Confusing correlation with causation, Taylor claims wind energy causes higher energy prices. However, an increase in electricity prices cannot automatically be accounted for by pointing the finger at wind energy. That’s simply playing fast and loose with the facts.
This is the same tired slant we have heard from Heartland Institute time and time again. Not surprising – when pundits want to cherry pick data to make their argument strong, it doesn’t always work.
First there are many, many factors that determine energy rates, not just one type of resource. In an analysis of utility rates, economists Ernst Berndt, Roy Epstein, and Michael Doane identified 13 reasons why an electric utility’s rates may be higher or lower than the average. They include things like the average use per customer, age of the electricity distribution system, generation resource mix, local taxes, and rate of increases prior to any implemented renewable portfolio standard (RPS). So faulting renewables for high energy prices is a bogus claim. Furthermore, there is no data showing a nationwide pattern of renewable energy standards leading to rate increases for consumers. The report states: “American consumers in the top wind energy-producing states have seen their electricity prices actually decrease by 0.37 percent over the last 5 years, while all other states have seen their electricity prices increase by 7.79 percent over that time period." Further, 15 studies from various grid operators, state governments, and academic experts have examined the impact of wind energy on wholesale electricity prices and confirmed that wind energy reduces electricity prices. Read More
Since 2004, the year of the first major revision of Germany’s Renewable Energy Act (EEG), the country has added at least 35 gigawatts (GW) of solar and 35 GW of wind to its electric grid – enough to offset upwards of 35 coal plants. What’s more impressive is during the first half of 2014, close to 29 percent of Germany’s electricity came from renewable sources. For perspective, America’s renewables percentage, at about 14 percent, was half of Germany’s during this timeframe.
Meanwhile, the country has improved its status as a grid reliability leader, causing the Heinrich Böll Foundation’s Energy Transition blog to conclude, “Clearly, installing the equivalent of 100 percent of peak demand as wind and solar capacity does not bring down the grid.” Renewables International further asserts, “Renewables have not yet reached a penetration level that has detrimentally impacted grid reliability.”
This success runs contrary to the predictions of Energiewende’s critics, who have sounded the alarms about investing in “too much” renewable energy. Some of these concerns are more valid than others, but the truth is, most of these claims are blown out of proportion, fixable with solutions that are not overly complex, and/or based on no empirical data. Read More