solar
Cities Abandoning Fossil Fuels
Around the world, cities are trying to combat climate change by shifting their energy needs away from coal, oil and natural gas. Some, like Reykjavik and Zurich, use no fossil fuels to produce power at all; others are still planning cutbacks.
Coal Subsidies
Coal is the most important energy source for the Chinese economy and in a number of other places around the world. It is still the largest source of electricity in the US. It is also one of the main reasons that greenhouse gas emissions continue to increase despite worldwide technological progress and the expansion of renewable energy. New coal plants are still planned in many places and such plants will emit carbon dioxide for decades.
New Places For Solar Power
The modern face of solar energy is hundreds of thousands of rooftops covered with arrays of solar panels. It is also amazing expanses of solar panels and mirrors covering acres of desert land. Solar power capacity is expanding rapidly and is expected to at least triple over the next 10 years.
OTEC In Hawaii
The state of Hawaii has a bold energy agenda: it plans to get 100% of its energy from renewable sources by the year 2045. In order to get there, Hawaii is embracing a diversified mix of renewable energy generation sources. Of course, Hawaii’s famous sunshine has allowed the state to have the highest per-capital base of installed solar power in the nation. But it will take more than just solar power for Hawaii to get all of its energy from green sources.
Solar Power And The Landscape
The use of solar power is growing rapidly but with all the growth, solar power only provides 1% of the country’s electricity. On the other hand, in 2014, solar power accounted for almost a third of all the new US electric generating capacity. According to the International Energy Agency, solar power could be the world’s leading source of electricity by the year 2050.
Turning Divesting Into Investing
Colleges and universities are bustling with activity. Among the conversations on campus: the call from students to sell endowment investments in the fossil fuel industry. Stanford has eliminated its coal investments, and a small number of other universities have divested to varying degrees.
The Wind Boom Continues
Wind power continues to increase its contribution to the US power grid. The second quarter of this year saw almost 1.7 GW of new turbines come on line and there are almost 14 GW under construction.
Moving Toward 100% Renewables
More and more cities, states and even entire countries are setting goals to use 100% renewable energy. For the most part, these goals relate to electrical power, which is the energy need most attainable via renewable sources. But ultimately, we would like to cover all of our energy needs – electrical power, heating and cooling, and transportation – using sustainable renewable resources.
Electricity Goes Local
Towns and cities are increasingly aware of the value of gaining control over their energy supply in order to make sure it is clean, efficient, reliable and secure. The central concept of what may become a local power revolution is the microgrid.
Solar-Powered Hydrogen Storage
