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  • FIRST POST
    • zeupater
    • By zeupater 7th Jan 13, 5:36 PM
    • 4,483Posts
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    zeupater
    Solar ... In the news
    • #1
    • 7th Jan 13, 5:36 PM
    Solar ... In the news 7th Jan 13 at 5:36 PM
    Hi All

    Thought it was about time we had a thread specifically to discuss relevant press articles relating to solar pv & thermal ..... so here goes ...

    Z
    Last edited by zeupater; 07-01-2013 at 5:48 PM.
    "We are what we repeatedly do, excellence then is not an act, but a habit. " ...... Aristotle
Page 119
    • Coastalwatch
    • By Coastalwatch 29th Nov 18, 6:51 PM
    • 400 Posts
    • 1,549 Thanks
    Coastalwatch
    Thanks ASB, I've changed the link on my post also. Reckon the earlier link may have been too long for copy and paste to handle!
    East coast, lat 51.97. 8.26kw SSE, 23° pitch + 0.59kw WSW vertical. Nissan Leaf plus one dirty diesel. Still waiting for V2H and home storage to become available at sensible cost.
    • KevinG
    • By KevinG 18th Dec 18, 5:48 PM
    • 1,347 Posts
    • 3,566 Thanks
    KevinG
    End of export tariff confirmed
    https://www.theguardian.com/business/2018/dec/18/solar-power-energy-firms-government
    Baxi Ecogen 24/1.0 Micro-CHP boiler installed Oct-2010; 2kWp Solar PV - 10*200W Kioto, SMA Sunny Boy 2000HF, SSE facing, some shading in winter, 37° pitch, installed Jun-2011, inverter replaced Sep-2017.
    • NigeWick
    • By NigeWick 19th Dec 18, 9:52 AM
    • 2,977 Posts
    • 1,292 Thanks
    NigeWick
    And who says our government can't be bought?
    The mind of the bigot is like the pupil of the eye; the more light you pour upon it, the more it will contract.
    Oliver Wendell Holmes
    • Coastalwatch
    • By Coastalwatch 19th Dec 18, 12:30 PM
    • 400 Posts
    • 1,549 Thanks
    Coastalwatch
    Interesting that large industrial companies are recognising the benefits of solar energy and using their muscle and buying power to organise their source of energy independent of the grid with savings sufficient to justify their investment!

    Great to see it happening as presumably it will be aligned with storage as well so perhaps assisting in bringing the cost of batteries down to affordable levels eventually.

    Looking further ahead if all large scale industries adopt this approach would the grid then be left with only the minnows to finance it's running costs!

    Lightsource BP has confirmed that it has clinched a deal with Budweiser brewer AB InBev to develop and operate PPA-backed, subsidy-free solar farms.
    And with the agreement totalling 100MW in generating capacity, the deal is understood to be the largest unsubsidised solar deal in UK history.
    Under the deal with AB InBev, Lightsource BP is to develop 100MW under 15-year power purchase agreements. The capacity is to be connected by the end of 2020, powering the brewer’s two main breweries in Magor, South Wales and Samlesbury, Lancashire.
    https://www.solarpowerportal.co.uk/news/lightsource_bp_confirms_uks_biggest_ever_subsidy_f ree_solar_deal_with_budwe
    Last edited by Coastalwatch; 19-12-2018 at 5:12 PM.
    East coast, lat 51.97. 8.26kw SSE, 23° pitch + 0.59kw WSW vertical. Nissan Leaf plus one dirty diesel. Still waiting for V2H and home storage to become available at sensible cost.
    • Martyn1981
    • By Martyn1981 19th Dec 18, 1:15 PM
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    • 12,605 Thanks
    Martyn1981
    Interesting that large industrial companies are recognising the benefits of solar energy and using their muscle and buying power to organise their source of energy independent of the grid with savings sufficient to justify their investment!
    Originally posted by Coastalwatch
    The PPA route is proving to be brilliant news sitting somewhere between grid supply and demand supply PV.

    Being able to sell leccy above the wholesale price, matched with the ability to buy leccy at below the retail price is something even this government is going to find hard to undermine!

    PS that link has broken, they may have moved the article, but it's available here.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Martyn1981
    • By Martyn1981 23rd Dec 18, 7:39 PM
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    Martyn1981
    And it's British.
    Quick update on Perovskite/Silicon.

    As you may be aware, Perovskite is the upcoming star of the PV world, as it's dirt cheap, and can even be printed on plastic film using 'special' inks.

    It's closing in on Silicon efficiencies, and has done this in a shockingly short length of time, but is still a little 'fragile'.

    But the good news/better news is that combined Silicon and Perovskite PV is still advancing. This won't be dirt cheap but also won't be expensive like say the high efficiency PV panels of the past.

    So at roughly the same cost as normal PV per Wp, Silicon/Perovskite will be able to squeeze a hell of a lot more Wp into the same space, possibly into the high 30%'s, certainly the low 30%'s.

    So on a roof where folk at the start of this decade popped about 4kWp of PV at 14% efficiency, you could fit (as an example) 10kWp at 35%.

    This opens up small rooves, shaded rooves, even north facing rooves(?) It also means a PV farm could double its output but some costs, such as land, ground mounts and labour wouldn't change - the panels represent about 50% of the cost, so whilst that will double (twice the kWp stuffed into the same area), most other costs wouldn't.

    For domestic installs, the PV panels represent about 30% of the cost, so imagine if you doubled the kWp by installing these panels, but the cost of the system only increased by 30%, so let's say 4kWp for £5k, or 8kWp for £6.5k.

    How about every house/flat having a two panel sunshade, 1kWp and around 1,000kWh's pa, and mostly consumed on site being a small system?

    So why the waffle, well a company that I've mentioned before, and keeps making the news in this are, is now (already) up to 28% efficiency. And just to repeat, this isn't through making very expensive high efficiency PV, it's through combining cheap(ish) Silicon PV, with very cheap Perovskite PV.

    Tandem cells at 28%

    Oxford PV today announced that it has achieved 28% conversion efficiency for its perovskite/silicon tandem solar cells, improving on the company’s own previous record of 27.3% The new world record efficiency is certified by the United States National Renewable Energy Laboratory.

    The record, which surpasses the current world record for a single junction silicon cell, was achieved on a laboratory scale device measuring 1cm². Oxford PV also held the previous world record for perovskite/silicon tandem cell, which it set at 27.3% back in June.

    “Today’s record demonstrates the unprecedented pace of our technology development,” says Oxford PV’s Chief Technology Officer Chris Case. “We are continuing to push our perovskite-silicon solar cell technology, with a roadmap that extends beyond 30% efficiency.”
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Martyn1981
    • By Martyn1981 29th Dec 18, 7:59 AM
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    Martyn1981
    Tesla have got some competition for solar rooves, and at a reported half the price:

    Powerhouse 3.0 Solar Shingles Head To The Roof
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Nicolai Grenovski
    • By Nicolai Grenovski 8th Jan 19, 10:25 AM
    • 88 Posts
    • 23 Thanks
    Nicolai Grenovski
    Swift Solar, A U.S startup designing and manufacturing perovskite solar panels, has announced raising $4.6 million as part of a $6.6 million investment round.

    The team at Swift Solar in Colorado includes leading solar technologists from Stanford, MIT, Cambridge (UK), Oxford (UK), and the University of Washington, with expertise in perovskite photovoltaic technology and scale-up. Swift’s core technologies range from new solar cell architectures to specialized manufacturing techniques initially developed in the labs at Stanford and MIT.

    Source:
    eenewspower

    https://www.perovskite-info.com/perovskite-solar-cell-developer-swift-solar-raises-46-million
    • Martyn1981
    • By Martyn1981 8th Jan 19, 1:07 PM
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    Martyn1981
    Some progress on post FiT's export payments.

    Solar panel users to be paid for excess power – but will need to wait

    Energy minister Claire Perry said on Tuesday she would legislate for a new market that will make energy firms compete to offer solar homes the best price for any unused energy they export.

    The marketplace would replace a scheme that pays households about 5p for each unit of solar electricity they export, which is paid for by all energy bill-payers but will close for new applicants on 31 March.

    Energy suppliers with more than 250,000 customers will be mandated to offer a “smart export guarantee” tariff, with solar households expected to shop around for the best rate.
    My main concern was that no companies would offer a competitive (5p(ish)) rate, but fingers crossed someone will. I think I'll assume some of the RE only suppliers will look to this.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Coastalwatch
    • By Coastalwatch 8th Jan 19, 4:59 PM
    • 400 Posts
    • 1,549 Thanks
    Coastalwatch
    Some progress on post FiT's export payments.
    Solar panel users to be paid for excess power – but will need to wait
    My main concern was that no companies would offer a competitive (5p(ish)) rate, but fingers crossed someone will. I think I'll assume some of the RE only suppliers will look to this.
    Originally posted by Martyn1981
    Yes indeed, there is little comfort when reading further into the announcement:-
    "Government intends to leave these prices down to the suppliers themselves, however all tariffs must be greater than zero and suppliers will not be eligible to recover costs by charging consumers at times of negative pricing."
    As a small supplier what negotiating power would any of us have if being offered a mere fraction of a penny per kWh. Probably even less than the UK has of negotiating a "better" deal than currently on offer from the combined strength of the 27 other European countries over Brexit!
    East coast, lat 51.97. 8.26kw SSE, 23° pitch + 0.59kw WSW vertical. Nissan Leaf plus one dirty diesel. Still waiting for V2H and home storage to become available at sensible cost.
    • Exiled Tyke
    • By Exiled Tyke 8th Jan 19, 7:20 PM
    • 322 Posts
    • 922 Thanks
    Exiled Tyke
    My thoughts for what they are worth - (may be not a lot) and actually they are more questions than thoughts

    1. I'm presuming that transferring to an 'export' agreement and shelving the deemed 50% won't affect the FIT payment otherwise only new installers will go that way. (Do current PVers who are on one of the few tariffs that allow selling to the grid lose their whole FIT or just the deemed 50% export?)
    2. Does this mean that current FIT claimants will be able to extend their systems and get something back on their new panels (although if the approx 5p per unit drops significantly this would not be worth while)
    3. Does the prospect of negative pricing of electricity at high production and low consumption times make domestic batteries suddenly more viable?
    Install 28th Nov 15, 3.3kW, (11x300LG), SolarEdge, SW. W Yorks.
    • michaels
    • By michaels 8th Jan 19, 7:51 PM
    • 21,879 Posts
    • 101,629 Thanks
    michaels
    The text of the announcement makes it sound like any export will be 'saleable' so presumably including from battery storage including v2g.

    Re prices offered, why should it be the electricity supply company that buys it? Surely it would make mores sense to in some way just let the power flow onto the spot market and be sold for the prevailing spot price - perhaps all handled by an 'aggregator'. Why would a domestic supplier want to purchase an unknown amount of generation at an unknown time, they need power to match their demand. Having a tariff that follows spot would incentivise power being made available when it is most valuable and so give a correct price signal for batteries and also perhaps give e/w solar arrays output more value than due S etc.
    Cool heads and compromise
    • Martyn1981
    • By Martyn1981 9th Jan 19, 7:18 AM
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    Martyn1981
    As a small supplier what negotiating power would any of us have if being offered a mere fraction of a penny per kWh. Probably even less than the UK has of negotiating a "better" deal than currently on offer from the combined strength of the 27 other European countries over Brexit!
    Originally posted by Coastalwatch
    That was the reason for my concerns about suppliers not wanting to negotiate with individual households.

    I recall advice many years ago on the Navitron forum that suppliers only required export meters on PV systems of 30kWp+, and similarly weren't interested in negotiating for smaller supplies. I also think there was annual fee for administering this (about £30?).

    Good news that a positive rate is now mandatory, but that does of course allow for 0.1p/kWh!

    I'm gonna guess that the fallback here will be the green tariff providers who don't generate all their supply, but have to buy in an equivalent RE contribution. Hopefully they will offer a decent rate, since they are, dare I say, only having to offset demand against supply ...... does that make any sense at all, I'm know what I mean, but can't really explain it.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Coastalwatch
    • By Coastalwatch 9th Jan 19, 10:41 AM
    • 400 Posts
    • 1,549 Thanks
    Coastalwatch
    I'm gonna guess that the fallback here will be the green tariff providers who don't generate all their supply, but have to buy in an equivalent RE contribution. Hopefully they will offer a decent rate, since they are, dare I say, only having to offset demand against supply ...... does that make any sense at all, I'm know what I mean, but can't really explain it.
    Originally posted by Martyn1981

    If the green tariff providers have only to match the total of green energy purchased against the total supplied without balancing the two at any given time then I'm following you!

    Of course it may mean that we are all generating at a time of day when energy is the cheapest and possibly even at a negative rate, if Germany is anything to go by, then Michaels suggestion that battery storage be it V2G or home storage could/should be included giving us the opportunity of selling what we generate for the best return.
    East coast, lat 51.97. 8.26kw SSE, 23° pitch + 0.59kw WSW vertical. Nissan Leaf plus one dirty diesel. Still waiting for V2H and home storage to become available at sensible cost.
    • Martyn1981
    • By Martyn1981 11th Jan 19, 9:03 AM
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    Martyn1981
    In Hawaii, a number of tenders for solar with storage have come in at a much lower price than current FF generation, 8-12c/kWh v's 15c/kWh.

    Big solar-plus-storage project will be one of Hawaii utility’s lowest-cost power sources
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Martyn1981
    • By Martyn1981 12th Jan 19, 8:23 AM
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    Martyn1981
    Impressive headline, but it gets better when comparisons are drawn in the text.

    Saudi Arabia Increases Solar Targets To 20 Gigawatts By 2023 & 40 Gigawatts By 2030

    Looking out over the long term, Saudi Arabia has increased its solar targets, raising its 2023 target from 5.9 GW to 20 GW and its renewable energy target from 9.5 GW to 27.3. REPDO set a new 2030 target with 40 GW of solar and 58.7 GW of renewables.
    So they've taken a 6GW target, and increased it by 14GW, or 3GW pa. Big jump.
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
    • Martyn1981
    • By Martyn1981 13th Jan 19, 5:06 PM
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    Martyn1981
    Solar news, but perhaps applies to wind in the UK.

    Note this is PV and storage v's gas peaker plants, not 'normal' gas generation leccy. Patience grasshopper.

    Solar + Storage Half The Cost Of Gas Peaker Plants — 8MinuteEnergy

    Such tumbling prices have led Wood Mackenzie to forecast that as the market for solar plus storage matures, it could put more than 6,400 MW of new natural gas-fired peaking capacity in the US at risk by 2027. “I can beat a gas peaker anywhere in the country today with a solar-plus-storage power plant,” says Tom Buttgenbach, CEO of developer 8minutenergy Renewables. “Who in their right mind today would build a new gas peaker? We are a factor of two cheaper.”
    Mart. Cardiff. 5.58 kWp PV systems (3.58 ESE & 2.0 WNW)

    For general PV advice please see the PV FAQ thread on the Green & Ethical Board.
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