Tag: Energy Storage

Fighting Blackouts: Japan Residential PV and Energy Storage Market Flourishing

In the past, a PV system with battery storage was associated with the off-grid system — not connected to the utility grid. The battery stores the energy produced by the PV system and when the sun goes down, electricity is drawn from the battery. In Japan, the battery became attractive to store electricity from “the grid,” to reduce electricity bills.

When Will Solar Batteries Become Economical?

It’s always the same problem: You save energy but the electricity bills are still getting more expensive. Luckily, there is a solution: Solar power can be generated in Germany for 12 cents per kilowatt hour. In contrast, utilities currently charge an average of 25 cents for domestic electricity. What better reason to invest into your own photovoltaic system? Solar storage systems can increase on-site consumption by up to 70 percent. They absorb surplus solar power and pass on the energy as required — expensive grid power is hardly necessary. This makes the systems very attractive for consumers: According to an EuPD Research survey, almost 90 percent of solar operators are already thinking about buying an additional storage system.

Distributed Energy Storage Benefits on Both Sides of the Meter

Solar and wind are excellent sources of clean, renewable energy, but as they contribute a larger share to the generation fleet, their integration will become increasingly challenging. The reason: solar and wind cannot be dispatched in the same way as other sources of energy, such as nuclear, hydro, and fossil fuels. Because the grid must operate “j

NRG Introducing Solar with Battery Storage for Homeowners

NRG Energy keeps making waves—in energy. The energy supplier, which owns gigawatts of electric generation, including solar, wind, natural gas and coal facilities across the U.S., recently started going a lot smaller, offering residential solar photovoltaic installations through its subsidiary, NRG Residential Solar. Now it plans to offer PV systems

Energy Storage Series: Why We Need It, And Why We Don’t

It’s almost a cliché that there’s a “friendly debate” pitting utilities against renewable energy. But concerns on the utility side of the table are real: intermittency, potential destabilization at the feeder level, non-baseload, and peaks in generation that don’t necessarily match demand peaks. Today’s power infrastructure involves unpredictability in both supply and demand that is extremely difficult to manage. The choice comes down to two options: over-generate so as to not undersupply, or find ways to better match up supply and demand.

The Good and Bad News of DoE Fiscal Year Budget Request

The good news is the Department of Energy (DoE) FY 2013 budget request of $2,337 million for Energy Efficiency and Renewable Energy programs (EERE) shows a 29 percent increase from the enacted FY 2012 budget. The bad news is the FY 2013 has not been approved by Congress, as of this writing, see Table 1 below.  Table 1: FY 2013 DoE Budget Request  

The Clouds are Getting Greener: Apple Data Centers Powered by 100% Renewables

Just one year after Greenpeace called out Apple for its use of fossil fuels in its “How Green Is Your Cloud” report – which graded Apple no higher than a “D” in four categories consisting of energy transparency, infrastructure siting, energy efficiency, and renewables and advocacy – Apple announced that its data centers are now powered by 100 percent renewable energy. In fact, renewables contribute to 75 percent of its entire corporate operations energy needs, according to its website.