Think about it, the ocean is moving 24/7/365. Between the waves and the tides, there is a constant source of renewable energy being generated, but not being harvested. “Generating technologies for deriving electrical power from the ocean include tidal power, wave power, ocean thermal energy conversion (OTEC), ocean currents, ocean winds and salinity gradients.
Of these, the three most well-developed technologies are tidal power, wave power and ocean thermal energy conversion. Tidal power requires large tidal differences which, in the U.S., occur only in Maine and Alaska. Ocean thermal energy conversion is limited to tropical regions, such as Hawaii, and to a portion of the Atlantic coast. Wave energy has a more general application, with potential along the California coast. The western coastline has the highest wave potential in the U.S.; in California, the greatest potential is along the northern coast.
California has more than 1,200 kilometers (745 miles) of coastline, and the combined average annual deep water wave power flux is over 37,000 megawatts (MW) of which an upper limit of about 20 percent could be converted into electricity. This is sufficient for about 23 percent of California’s current electricity consumption. However, economics, environmental impacts, land-use and grid interconnection constraints will likely impose further limits to how much of the resource can be extracted.
Although technology is still at a relatively immature pilot project stage, economic projections indicate that ocean energy could become cost-competitive over the long-term.”
Here are three reasons why natural gas is more expensive than geothermal energy:
- It is consumable (consumed in the process of creating heat)
- Combustion heating creates Green House Gas emissions
- It is subject to carbon taxes
Meanwhile, geothermal heat pumps are the opposite of natural gas:
- Geothermal is renewable (the solar energy stored in the earth is continually replenished)
- Geothermal creates no Green House Gas emissions (no combustion on site)
- Geothermal isn’t charged carbon taxes, so it’s more affordable.
To learn more about geothermal vs. natural gas, check out: http://www.renewableenergyworld.com/articles/2017/01/can-natural-gas-giants-switch-to-geothermal.html?cmpid=enl_rew_geothermalenergynews_2017-01-26
Don’t lose heart my dear ones, here is a snippet showing our blog stats for today! Not only do we have a great showing for this post, it’s from all over the world.
And it’s delightful!!!!!
PS. I know it looks hazy, but click on the jpg and it will show you the details in full.
“Many forms of energy surround you: sunlight, the heat in your room and even your own movements. All that energy — normally wasted — can potentially help power your portable and wearable gadgets, from biometric sensors to smart watches.
Now, researchers from the University of Oulu in Finland have found that a mineral with the perovskite crystal structure has the right properties to extract energy from multiple sources at the same time.”- from Science Daily
Read more about how to garner energy from your immediate environment at: https://www.sciencedaily.com/releases/2017/02/170207142711.htm
“BP Plc (British Petroleum Public Limited Company) will invest $30 million in Fulcrum BioEnergy Inc., which makes biofuel from garbage, in a new partnership designed to curb airplane pollution. The London-based oil-producer also signed a 10-year deal to buy 500 million gallons (1.9 billion liters) of biofuel from Fulcrum’s North American plants, according to a statement by BP on Tuesday. BP will distribute the aviation fuel to planes through its unit Air BP Ltd., which sells about 7 billion gallons of aviation fuel annually.
Airlines facing pressure to clean up their pollution last month brokered a landmark deal in Montreal. Their accord created a global system that requires them to fund environmental initiatives from 2020 that may cost as much as $24 billion annually by 2035.” By Jessica Shankleman, Bloomberg, November 2016
“New York Governor Andrew Cuomo is pursuing the state’s 50 percent renewable by 2030 goal with vigor. On Wednesday he announced that the 90-MW South Fork Wind Farm, which will be located 30 miles southwest of the popular summer vacation spot, Montauk, and therefore invisible to beachgoers, is now approved by the board of trustees of the Long Island Power Authority. The approval comes just two weeks after Cuomo announced an unprecedented commitment to develop 2.4 GW of offshore wind power by 2030.”
Diversifying our power supply is key
Renewable Energy Analyst and Research Projects Manager of the Geothermal Energy Association, Benjamin Matek, reports that “Last fall, the California legislature passed SB 350, a bill that will increase the state’s renewable energy generation to 50 percent by 2030 utilizing resources like wind, solar, biomass, and geothermal energy. This goal will be a first. No large-scale economy like California has ever attempted to transition to a grid powered in majority by renewables.
Study after study on the California energy landscape point toward the same answer: make the grid diverse. California’s grid will require a mix of renewable resources like solar, hydropower, storage, wind, and geothermal. For example, a study commissioned by the Walton Family Foundation on a 50 percent renewable grid found that “replacing 10 TWh of solar PV with geothermal . . . reduces CO2 emissions by 4.2 million metric tons per year in California and 2.4 MMT/yr in the rest of the West.”
For more information on geothermal energy usage, go to: http://www.renewableenergyworld.com/articles/2016/04/studies-show-geothermal-and-grid-diversity-benefit-the-environment-and-consumers.html?cmpid=renewablegeothermal0552016&eid=326825548&bid=1395781
Renewable Energy World, one of the leading publications in the RE business just ran an encouraging story about the RE market.
“Renewable energy accounted for the majority (50.5 percent) of new U.S. electrical generation put into service during the first 11 months of 2016, according to the latest issue of the Federal Energy Regulatory Commission’s (FERC) monthly Energy Infrastructure Update (with data through Nov. 30, 2016).
Combined, newly installed capacity from renewable sources (i.e., biomass, geothermal, hydropower, solar, wind) totaled 9,655 MW, surpassing that from natural gas (8,109 MW), nuclear power (1,270 MW), coal (45 MW), and oil (33 MW) combined.
The rapid growth of renewables — particularly solar and wind — has resulted in their seizing an ever-growing share of the nation’s total generating capacity. Five years ago, renewable sources cumulatively accounted for slightly over 14 percent of total available installed generating capacity; now they provide almost 19 percent (18.69 percent): hydropower, 8.53 percent; wind, 6.58 percent; solar, 1.84 percent; biomass, 1.41 percent; and geothermal, 0.33 percent.”
Story source: http://www.renewableenergyworld.com/articles/2017/01/renewables-provide-majority-of-new-us-generating-capacity-through-november-2016.html?cmpid=enl_REW_GEOTHERMALENERGYNEWS_2017-01-12