Why Rooftop Solar Proposed Rate Cannot Be Increased

Yasitha Weerasinghe

over 1 year ago1

Wibhashvin Ravihansa for me this is rubbish. In the month of february CEB made around 10lkr per unit lose. And solar basically displaces the furnace oil and diesel in order to achieve the 70% renewable energy target by 2030. Cost for furnace oil is around 45/unit and diesel 75/unit respectively. Rational decision is yours.
over 1 year ago
Yasitha Weerasinghe this reply i copied from number.lk. I think its relatable ! And in fact reaching this 70 % of renewable energy target through rooftop solar panels is unsustainable neh! //1. Solar displaces not only expensive oil but also the much cheaper sources like major hydro (around ~5 LKR) and mini hydro & wind (~12 LKR) during the daytime. What is currently happening is that the CEB is asking mini hydro plants to curtail their power input during the day because solar generation is high. Solar essentially displaces generation sources controlled by the CEB—whether it's oil, hydro, or wind. This is why using the average cost makes more sense, especially for January, since terminal oil usage is low, and solar displaces a mix of energy sources during the daytime. 2. Advocates like you must recognize that solar alone cannot ensure reliability without complementary controllable sources like hydro, thermal, or storage. A stable power grid requires a generation mix that can be controlled in real time to match supply and demand. Solar is variable and lacks dispatchability. So, increasing solar penetration without proper grid visibility, forecasting, and backup sources risks blackouts. Advocating for blindly adding solar to the grid, while asking to pay a premium, makes no sense.//
over 1 year ago
Wibhashvin Ravihansa i read this. Renewable target is not gonna achieve only through solar. Wind is a big part. But we have not achieved at least 10% of the country's solar potential by now. So there is more room for significant expansion provided with adequate infrastructure by CEB. Lower tariffs will significantly discourage the movement.
over 1 year agoLikes:1

Such a dumb argument. 1. Solar displaces oil. It's the marginal cost that matters not average cost. 2. Oil is not used only Sunday's at most. Here is the last Thursday generation curve with 450 MW of oil which includes furnace oil plants at 45 and diesel plants at 75. That's what solar displaces

over 1 year ago14

Numbers.lk
1. Solar displaces not only expensive oil but also the much cheaper sources like major hydro (around ~5 LKR) and mini hydro & wind (~12 LKR) during the daytime. What is currently happening is that the CEB is asking mini hydro plants to curtail their power input during the day because solar generation is high. Solar essentially displaces generation sources controlled by the CEB—whether it's oil, hydro, or wind. This is why using the average cost makes more sense, especially for January, since terminal oil usage is low, and solar displaces a mix of energy sources during the daytime. 2. Advocates like you must recognize that solar alone cannot ensure reliability without complementary controllable sources like hydro, thermal, or storage. A stable power grid requires a generation mix that can be controlled in real time to match supply and demand. Solar is variable and lacks dispatchability. So, increasing solar penetration without proper grid visibility, forecasting, and backup sources risks blackouts. Advocating for blindly adding solar to the grid, while asking to pay a premium, makes no sense.
over 1 year agoLikes:12
Numbers.lk where have I said its only solar? In which sense does average cost makes sense? I mean the duspkaced hydro is used at the night. Its NOT list! That's the dumbest number argument made. Third, the comparison against coal and oil must include the exchange rate as well. All the coal advocates spoke against the Rs 23 solar tariff all the way to 2021, when average cost was lower. Abd now thats the second lowest cost with coal skipping over due to rupee depreciation. Instead if doing lazy math, do some real math. If you don't know how, ask.
over 1 year agoLikes:2
The idiotic argument here is that it departs from cost reflective tariff. Like CEB, you argue against cost reflective tariff, as if solar should be a charity. This at the same month when state is ready to sign diesel Sahasdhanavi plant at Rs 72/kWh. Didn't hear you say anything about it. Only renewable energy seems to be your problem
over 1 year agoLikes:4
Vidhura Ralapanawe Above is not maths, but CEB maths! 🤣🤣🤣
over 1 year ago
Shyam Pathiraja There 're two different ways things operate in CEB .. Cash flow match is different from Profits .. If CEB is a private company SOlar frenzy would have been feasible
over 1 year ago
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Why Rooftop Solar Proposed Rate Cannot Be Increased

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