The U.S. Just Approved One of the World's Biggest Solar Power Plants

Todd Woody for  The federal government on Monday green-lit a 485-megawatt solar plant that would generate enough carbon-free electricity to power 180,000 homes when it comes online in the Southern California desert. During the Great Recession, that was nothing unusual about billions of dollars in federal stimulus money fueling big green dreams of carpeting the Mojave Desert with giant solar power plants on government-owned land, a cornerstone of the Obama administration’s efforts to fight climate change. That land, however, often turned out to be home to desert tortoises, blunt-nosed leopard lizards, and other endangered wildlife. Many of those projects went belly-up in part because of fierce opposition from environmental groups. That prompted an effort by the federal government to be “smart from the start” about where it allowed big renewable energy plants to be built. So the Blythe Mesa Solar Project, which was approved Monday, will deploy tens of thousands of solar panels across 3,587 acres of already disturbed or fallow farmland where wheat, alfalfa, and citrus had been grown. No desert tortoises will be harmed.  Cont'd...

How Merthen Manor Heats Family Home And Six Cottages And Saves £20,000 Per Year In Fuel Bills

The biomass district heating system provides heat and hot water to the whole estate throughout the year, predictable fuel bills, income from the renewable heat incentive (RHI), and a 43,000kg reduction in CO2 emissions per year.

Book Discussion - Harness the Sun

For a long time, solar power was viewed as a privilege reserved for the elite. Today there are lots of ways to make solar affordable to homeowners pretty much across the income spectrum.

Plug-and-play battery seeks to upstage Tesla

By Morgan Lee for the San Diego Union Tribune:  It looks like a simple floor lamp, or a sleek picture frame on the wall.  Inside lies a tantalizing future for household energy storage -- a 2 kilowatt-hour battery that plugs into a standard wall outlet and can keep an electrical circuit hot for several hours or more if a power outage strikes. The unproven concept for a plug-in-play battery was introduced Thursday by San Diego-based Orison during a forum at the University of California San Diego. Len Hering, executive director of the Center for Sustainable Energy, praised the 2-year-old startup's efforts in a news release. Orison CEO and co-founder Eric Clifton, drawing on seven years of experience in green technology startups, believes the battery tower and wall unit can play a prominent role in the emerging Internet of Things, providing the energy-storage equivalent of the Nest smart thermostat. "The way we look at it, we are the Nest of the energy industry," he said. Clifton believes that other early household battery entries -- most notably the Powerwall from electric car maker Tesla Motors -- miss the mark on bringing energy storage to the masses. Tesla's hefty home battery has to be professionally mounted and hardwired into household circuity, potentially involving inspections and permits. With Orison's batteries, you don't have to own a home, or even live in one, Clifton said. The batteries fit in with an apartment dweller in Manhattan.   Cont'd... ​

Indian airport becomes world's first to run entirely on solar energy

ROSE TOUP BUCHANAN for The Independent: An Indian airport has become the world's first to run entirely onsolar energy . Cochin International Airport, in the south of India, inaugurated a massive 45-acre solar plant on Tuesday. The plant, made up of 46,000 panels, will provide between 50,000 to 60,000 units of electricity every day (totalling 12 megawatts of power alongside pre-existing solar panels ), according to a release from airport authorities. It has been a long-running project: the airport first installed panels on the roof of its terminal in 2013 and has gradually expanded the initiative. Cont'd...

The Efficient Use of Concentrating Solar Power Technology

Many concentrated solar power plants could be built within the next several years. A single plant can generate 250 megawatts or more, which is enough to power about 90,000 homes.

Super Battery Technology - High Capacity Cathode

Rather than relying upon conventional cathodes that use lithium-ion intercalation chemistry, an inherently slow process, we exploit the fast redox-reaction properties of our polymer to enable rapid charge and discharge.

Corporate Demand for Renewable Energy is Increasing

Multinational corporations want access to global solutions that help them document their commitment to electricity from renewable energy sources.

The Dark Side of Renewable Energy: Negative Impacts of Renewables on the Environment

What scientists, engineers, companies, and nations expanding their power capacities need to focus on, is implementing solutions that keep negative impacts of renewables in check.

ReneSola Expands into the LED Market

Since launching our U.S. LED business in late 2014, we've quickly built a sales and logistics network across 25 states.

Five Characteristics of Great Utility Customer Engagement

The evolution of the energy industry that is enabling customers to engage with their energy use is opening up new opportunities-and new challenges-for utilities.

Technology Supports Global Sustainability

Cloud-based software is one technological advancement that can pay dividends in the development and management of a wide variety of renewable energy projects, from wind farms, solar farms and geothermal plants to hydropower and biomass facilities.

The Bright Idea Behind Power Classes

In order to avoid costs for AC panel upgrades, it makes sense for inverter manufacturers to provide power classes that get the most solar power on an existing customer's AC panel without upgrading it.

The future of solar Feed-in Tariffs in the UK

We're extremely close to reaching the point at which renewable electricity costs as little to generate as electricity from fossil fuels, so it's imperative that we don't take a backward step.

Hydrogen Gas / Smoke Detector with Intrusion Alarm for Battery Room

From Eagle Eye Power Solutions: The Eagle Eye HGD-3000 Hydrogen Gas and Smoke Detector with (optional) Silent Intrusion Alarm is designed for unattended battery installations or remote shelters containing gassing lead acid batteries and charging systems... Lead-acid batteries on charge emit hydrogen gas after reaching the 80% recharge point. When mixed with enough air, hydrogen becomes a highly flammable gas that can ignite easily with just a spark, destroying equipment and harming personnel. The lower explosive level (LEL) for hydrogen is 4.1% by volume. Hydrogen Gas Detection Attach the HGD-3000 to the wall, ceiling, or optional junction box using the mounting holes at the top and bottom of the detector box. The HGD-3000 will turn on an exhaust fan when hydrogen gas levels reach 1% and will alarm at 2%. This alarm consists of a local 80db horn, a flashing red LED, and a dry contact switch closure for remote alarming. Smoke Detection The photoelectric smoke sensor detects minute combustion products from smoldering wire insulation, battery cases, and other material. When smoke is detected, a distinctive alarm is emitted from the 80db horn and a separate dry contact switch is activated. At this time, the exhaust fan is inhibited in order to deny the fire increased oxygen from outside air. Temperature, Loss of Power, & Intrusion During normal operation and in the absence of an alarm condition, an internal thermostat will turn on the exhaust fan at a preset temperature to reduce heat buildup in the room. Loss of power to the unit will also generate a dry contact alarm. Additionally, an optional infrared intrusion alarm will trigger a silent dry contact switch. Product website

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Featured Product

IMO Precision Controls - Keeping Solar Safe

IMO Precision Controls - Keeping Solar Safe

The IMO FireRaptor provides three forms of Solar Panel Rapid Shutdown to ZERO VOLTS in case of fire or other emergency: Manual Panel Shutdown to 0V Operated from Ground Level, Automatic Panel Shutdown to 0V at >85°C (185°F) Temperature, and an automatic Panel Shutdown to 0V on External Power Loss. The FireRaptor can be installed without any set-up and with any string inverter as its functionality is completely independent. "Plug & Play" style installation using industry standard connectors is easy, whether fitted to new installs or retrofitted to existing projects to upgrade fire safety functionality. Meeting NEC2017's regulation to switch DC current at the PV panel in under 30 seconds, FireRaptor is remains one of the safest and most effective means of isolating DC current at the source, and the only rapid shutdown with a 20 year warranty.