07/10/2017

Saudi: Aurinkosähköä hintaan 0.0153 EUR/kWh

Saudi Arabia received offers to supply solar electricity for the cheapest prices ever recorded, marking the start of a $50 billion program to diversify the oil producer’s domestic energy supplies away from fossil fuels. The energy ministry said Abu Dhabi’s Masdar and France’s EDF bid to supply power from a 300 MW photovoltaic plant for as little as 1.79 cents/kWh, according to a webcast of the bid-opening ceremony on 03.10.2017 in Riyadh. If awarded, that would beat the previous record for a solar project in Abu Dhabi for 2.42 cents/kWh.

The plant will be the first awarded under the renewables program, which targets 9,500 MW of electricity generation capacity using solar and wind by 2030. The project is set to start producing power by June 2019, according to the bid. Masdar and EDF are already partners in an 800-MW project in Dubai. [rew]

02/10/2017

Englanti: Ei enää tukirahaa aurinkovoimalle

A solar power farm running without a government subsidy opened 26 Sep 2017 in Great Britain, eastern England, due to more accessible renewable energy as costs are significantly decreasing. Coal and nuclear plants planned to close in 2020s need to be replaced, therefore Britain has to invest in new energy capacity.
The cost of solar panels and batteries fell remarkably over the last years, and the first subsidy -free development at Clayhill is an important step for clean energy in the UK, as announced by the minister for Climate Change and Industry, Claire Perry. 
The electricity generation of the 10 megawatt (MW) solar farm, in Bedfordshire, Clayhill, is enough to power 2,500 homes. It also has a 6 MW battery storage facility.For the sake of reducing increasing renewable subsidy costs, the government gave up on new subsidies for solar projects and onshore wind during the last years.  [emp]

28/09/2017

Brysselin lämpötila nousee 3.5 %

New climate models presented at a study day at the Belgian Royal Met office in Brussels reveal that if greenhouse gas emissions are not halted the Belgian climate will undergo significant change this century. Depending on the model the temperature in Belgium will rise by between 2.6°C and 3.5°C between 2070 and 2100. The increase is far greater than the 1.5 degrees seen as "safe". Plants and animals should be able to adapt under a smaller change that would not trigger extreme weather phenomena. 
Climate change could lead to a 19% increase in rainfall during the winter. Incidents of "extreme rainfall" could be up by between 10% and 18% and lead to flooding. The number of severe storms too could rise triggering misery for the coast. An ordinary north-westerly storm combined with a spring tide could cause sea levels to rise by 3.5 metres. Fortunately this should normally only occur every 20 years. [exp]

Meksikon muurin prototyyppien teko alkoi

Federal contractors on 26.09.2017 began building prototypes of President Donald Trump's proposed border wall with Mexico , hitting a milestone toward a key campaign pledge. Construction of eight models in a remote area of San Diego is about three months behind schedule, held up by losing bidders whose protests were eventually denied. A green tarp hanging on a chain-link fence blocked views of the work, which is expected to last 30 days. 
Customs and Border Protection may pick several winners, or none. Roy Villarreal , acting chief of the Border Patrol's San Diego sector, said another contractor will evaluate each model, which will be up to 30 feet (9 meters) high and 30 feet long.  [enr]

25/09/2017

Maailma 2040: Energiankulutus lisääntyy 28 %

By the year 2040, global energy consumption might increase by 28%, as forecasted by the US Energy Information Administration (EIA). Countries outside the Organisation for Economic Co-operation and Development (OECD) could be responsible for most of the growth, principally Asian countries, where demand is influenced by high economic growth. During this period, China and India, might account for over 60% of the world’s increase in energy consumption. [emp]

21/09/2017

Mika ANTTONEN: Akut maksavat miljardeja

St1n omistajan Mika Anttosen järkevät ja realistiset näkemykset energiasta ovat tuttuja. Niistä hän puhuu myös Talouselämän haastattelussa. Tässä esitän vain hänen sanomansa (uusiutuvan) sähkön varastointiongelmaan liittyen: 
Akustot on juuri kilpailutettu kansainvälisesti St1:n ja S-ryhmän tuulivoimayhtiön TuuliWatin tuulipuistoon. ”Hinta pyöri tasolla 1 000 euroa kilowattitunti. Teslaa johtava Elon Musk on sanonut, että sähköakun hinta tulee menemään ihan pian autoissa tasolle 100 euroa kilowattitunti”, Anttonen sanoo. Hän on laskenut paljonko maksaisi akusto, johon voisi varastoida prosentin Suomen sähköstä (kokonaiskulutus = 85 TWh): nykyhinnalla 850 miljardia euroa. Muskin lupaamalla hinnalla 85 miljardia. Jo se on kymmenen Olkiluoto kolmosen hinta!

PS: EWE-sähköyhtiö tutkii mahdollisuutta toteuttaa jättimäinen sähkövarasto Berliiniin. Tavoitteena on rakentaa virtausakku, jonka teho olisi 120 MW. Tämä maailman suurin akku varastoisi sähköä 700 MWh. Tämä kattaisi kuitenkin Suomenkin sähkönkulutuksesta häviävän pienen osan eli 0.0008 % (sic). 
Suomen suurin sähkövarasto on Fortumin Järvenpään biovoimalan yhteydessä. Järvenpään varastossa on runsaat 6000 litiuminonikennoa, ja nimellisteho on 2 MW ja varastointikapasiteetti 1 MWh.

18/09/2017

Maailman suurin merituulivoimapuisto rakenteiille

The UK contract to build 1.4 GW capacity at its Hornsea 2 wind power project, likely to be the world’s largest offshore wind farm, has been awarded to DONG Energy.
According to the Danish wind firm, the guaranteed price to deliver power, established under the Contracts of Difference (CfD) scheme, is 57.50 GBP/MWh (0.0653 EUR/kWh), or 50 % lower than the allocations at auction two years ago. [emp]

01/09/2017

Meksikon muurin prototyypit betonista

The Trump administration has taken another step toward building a wall on the U.S. border with Mexico , even as funding for the project remains in question.
U.S. Customs and Border Protection announced Thursday it will award contracts to four companies to build four concrete prototypes for the wall. The prototypes will cost a total of $3.6 million and will be built in San Diego .

29/08/2017

Musta hiili & Climate and Clean Air Coalition

Nyt presidentitkin alkaneet puhumaan mustasta hiilesta (black garbon). Hiili onkin mustaa (sic). Näyttää siltä, että tavanomaiset ilmaukset kuten noki (soot) eivät kelpaa. Musta hiili ei ollut mukana Kioton sopimuksessa, mutta se nousi viisi vuotta sitten isompaan keskusteluun seuraavasti:

Pollutants that are short-lived in the atmosphere such as methane, black carbon and hydrofluorocarbons (HFCs) together account for approximately one-third of current global warming, have significant impacts on public health, the environment, and world food productivity. Secretary of State Hillary RODHAM CLINTON 16 Feb 2012 announced the Climate and Clean Air Coalition (CCAC) to reduce short-lived climate pollutants, a new global initiative to seize the opportunity of realizing concrete benefits on climate, health, food and energy resulting from reducing short-lived climate pollutants. The coalition will focus efforts on reducing black carbon (soot), hydrofluorocarbons (HFCs), and methane. The founding coalition partners are Bangladesh, Canada, Ghana, Mexico, Sweden, and the United States, together with the UN Environment Programme (UNEP).
Tästä kirjoitin 01 Jul 2012 Clintonin USAn suurlähetystössä pitämän esitelmän jälkeen.
Koalitioon on sittemmin liittynyt yli 30 valtiota Suomi mukaan lukien. CCACn pääkonttori sijaitsee Pariisissa.

Note: In addition to carbon dioxide (Global Warming Potential - GWP = 1), the other five greenhouse gases, methane (IPCC AR4 2007: GWP = 25 over 100 years), nitrous oxides (298), hydrofluorocarbons (14,800), perfluorocarbons (1,430) and sulphur hexa-fluoride (22,800) may be converted to the equivalent CO2.

28/08/2017

139 maassa 100% uusiutuvaa 2050 mennessä?

By the year 2050, a total of 139 countries could get their energy only from renewable sources such as water, wind and sun.
Researchers at the Stanford University say this would reduce energy consumption, since renewables are more efficient than fossil fuels, but also help create 24 million jobs, and reduce air pollution deaths by up to seven million per year.

Researchers from the university also assert that the conversion to all green energy will spare more than $20 trillion in health and climate costs every year.  [emp]