[Vantage Point] Why the Philippines should slow down on offshore wind transition

The National Transmission Corporation (TransCo) has released projected Green Energy Auction (GEA) rates for various renewable energy batches (GEA 1, 2, 4, 5, and 6) covering years 2025 to 2050. Although the table appears highly technical — with columns of CRR (Cost Recovery Rates) expressed as pesos per kilowatt-hour (₱/kWh) — it tells a simple story: renewable energy costs will rise sharply entering 2030, then gradually decline over the long term.

Note: Effective Green Energy Tariff (GET) of GEA 1=PhP4.91/kWh, GEA 2=PhP5.03/kWh, GEA 4 GEAR=hP5.34/kWh, GEA 5 GEAR=PhP12/kWh, GEA 6 GET=PhP19/kWh

This table (above) foretells the country’s march to the most consequential decade of its renewable-energy transition. For years, policymakers promised cheaper, cleaner power once the country ramps up green capacity. Yet, newly released projections from TransCo paint a more nuanced picture — one that rewards long-term thinking but demands brutal honesty in the near term.

TransCo’s GEA-All Rate Estimate, covering Green Energy Auction rounds 1, 2, 4, 5 and 6, offers a comprehensive look at how much cost consumers may shoulder to support the country’s aggressive renewable build-out from 2025 to 2050. The message is that transition will not be smooth, and renewables will not immediately translate into cheaper electricity. Costs rise materially as massive new capacities come online around 2030. Only afterwards do they settle into a long-term downward glide. For an economy still struggling with high power prices, fragile grids, and fossil-fuel volatility, understanding this curve is not optional. It is essential for everyone who relies on electricity.

The 2030 spike: The true cost of big renewable capacity

Between 2030 and 2033, the estimates show a pronounced increase in the CRR — the amount the system must recover per kilowatt-hour. Across all tariff scenarios, the same story emerges: GEA-5 and GEA-6 change the game.

GEA-5 alone brings in 3.3 gigawatts of new renewable capacity — arguably the single largest green-energy commitment in Philippine history. But big capacity comes with big price tags: tariff assumptions hover at ₱12/kWh for GEA-5 and ₱10/kWh for GEA-6.

The result? Under the standard ₱4/kWh scenario, the average GEA-All rate jumps to ₱0.6286/kWh from 2030-2033. In the more conservative ₱3/kWh scenario, it climbs to ₱0.8507/kWh.

In plain English: 2030 is the year when the Philippines pays the “entry fee” for large-scale renewable energy. This spike is not a sign of market failure. It is the natural economic profile of green transitions worldwide: upfront pain for long-term payoff.

Why early years look cheaper 

Interestingly, CRR figures from 2025 to 2027 show minimal — even negative — rates. This does not suggest lower electricity bills. Instead, it reflects:

• low working capital requirements
• minimal new green capacity entering the grid
• ongoing system over-recoveries from earlier estimates

These are artificial cushions. They will not survive the surge of renewable energy commitments beginning 2028 onward.

Must Read

[OPINION] Renewable energy technology for energy transition

The long arc: Declining costs and stabilizing power prices

The most important takeaway — the one that should guide CEOs, investors, and policymakers — is what happens after the 2030–2033 shock period.

From 2034 to 2050, the CRR steadily drops across all tariff scenarios:

• ₱5/kWh scenario → ₱0.2398
• ₱4/kWh → ₱0.3619
• ₱3/kWh → ₱0.4840
• ₱2/kWh → ₱0.6061

The long-term trend is unmistakable: renewable energy becomes progressively cheaper over time, eventually outperforming fossil fuels, even after factoring in all cost recoveries.

This tail-end decline is consistent with global experience. As capacity scales, technology costs fall, financing becomes cheaper, and operational efficiencies compound. In short: green energy is expensive to build but cheap to run.

But the real story that separates this decade from the next is not solar, not onshore wind, and not even geothermal — it is offshore wind (OSW). Its economics, price impact, and timing will determine whether the Philippines sails smoothly into the renewable future, or locks itself prematurely into decades of elevated costs.

Play Video

The price curve everyone must know

TransCo’s projections point to a clear two-phase pattern:

• Phase 1 – A 2030–2033 spike (short-term pain):

This is driven by the entry of GEA-5 and GEA-6, including early-stage OSW. High early tariffs — ₱10 to ₱12 per kWh — push CRR sharply upward in the early 2030s. Power-intensive industries will feel this immediately.

• Phase 2 – 2034–2050 decline (long-term gain):

After 2034, as renewable assets amortize and the country’s total generation capacity expands, CRR levels ease and flatten. This is where renewables outperform fossil fuels: expensive, entering the system; cheap, sustaining it.

But this simple two-phase model hides a deeper and more consequential dynamic: the effect of OSW costs diluting over time as the total energy pie grows.

OSC costs decline, but only as the energy pie grows

Offshore wind is the most capital-heavy renewable technology in the pipeline. Its Levelized Cost of Energy (LCOE) remains significantly higher than solar, onshore wind, or even geothermal. 

But here’s the nuance often lost in public discourse: the cost impact of OSW decreases over time — not because OSW gets cheap, but because everything else around it grows.

As solar, battery storage, onshore wind, and geothermal expand, the total generation base of the Philippines grows dramatically. The OSW cost, while still high, becomes a thinner slice of a much larger pie. That dilution effect is real, measurable, and supportive of long-term energy stability.

However — and this is the key message for policymakers — the dilution does not eliminate the drag; it only distributes it.

OSW will still impose a significant price impact for years. It will be a burden on the grid before it becomes a strategic advantage. And this is where the Philippines must avoid locking itself too early into massive OSW commitments.

Why we should not lock into 3,300 MW of OSW 

Without strategic timing, the Philippines risks repeating the early solar mistakes of other countries: committing too early at high LCOEs, only to watch prices collapse a few years later.

There are three rational strategies to avoid an unnecessary price burden:

• Postpone large-scale OSW development:

Wait for the LCOE to drop significantly — just as solar photovoltaic (PV) did over the last decade. OSW is still in its expensive phase globally. Early adopters pay a premium.

• Start small — deploy pilot-scale OSW first:

Instead of committing 3,300 MW upfront, begin with a few hundred megawatts.
Learn from implementation, build supply-chain expertise, train the workforce, and only scale when costs materially decline.

• A blended approach (the most sensible path):

A measured hybrid: small early OSW deployments for knowledge-building, combined with postponed large-scale capacity until economics improve.

The Philippines does not need 3.3 GW of OSW today. What it needs is timing, sequencing, and discipline.

The emerging wild card: New tech in future GEA rounds

Another strategic question is whether OSW will remain the highest-cost renewable over the next decade. The answer is increasingly: not necessarily.

The GEA framework may soon include technologies such as:

• Hydrogen-to-power
• Ammonia co-fire or direct power conversion
• Small modular nuclear reactors (SMRs)
• Advanced long-duration storage technologies

Any of these technologies could compress the cost curve further. If they become viable, OSW’s relative role — and its economics — will shift dramatically. In other words: locking into 3,300 MW of OSW today may close the door to cheaper technologies tomorrow.

OSW will matter only if timed correctly

Offshore wind will almost certainly play a major role in the Philippines’ energy future. Its scale, reliability, and capacity factor make it a strategic anchor for a mature renewable grid. But this role must be earned through timing — not forced through early commitment.

OSW’s cost curve will decline. The energy pie will grow, diluting OSW’s price impact. But none of this justifies a premature 3,300 MW lock-in. 

The next decade is about managing cost turbulence while building the foundations of a stable, diversified renewable grid.

Offshore wind is part of that future — but not at any price, and not at any pace.

The discipline to sequence OSW, backload large-scale deployment, and allow the energy pie to grow first will determine whether the Philippines becomes a regional energy leader — or saddles consumers with unnecessary costs during the most economically sensitive decade in its energy transition.

The 2030–2033 price surge

As new renewable capacity under GEA-5 and GEA-6 enters the grid — particularly early-stage offshore wind — the system’s CRR rises sharply. These technologies are still expensive, and early-stage OSW carries some of the highest costs in the renewable spectrum.

Tariffs of ₱10-₱12 per kWh for OSW generation translate into system-wide CRR increases that will eventually filter into consumer generation charges. The spike between 2030 and 2033 will not be theoretical; it will appear in actual monthly bills.

This is the transition pain that every country goes through. But the Philippines risks amplifying that pain if it mismanages OSW timing.

Some policymakers argue that OSW costs will “dilute” in the future. That is true — but not for the reasons the public thinks.

The cost impact of OSW declines not because OSW itself becomes cheaper, but because the total national power supply will grow.

A larger energy “pie” means OSW becomes a smaller, thinner slice. Its cost remains high, but it is spread over a larger base of generation from solar, geothermal, onshore wind, and storage.

Yes, OSW costs will look smaller on a pesos-per-kWh basis over time — but this dilution takes years. Meanwhile, Filipino households will shoulder the early surge.

OSW will still be a drag on power prices for years

Even if diluted over time, OSW still imposes a significant price burden in its early deployment years. Consumers will pay:

• higher generation charges
• higher system charges (to recover capital costs)
• higher grid integration costs

Filipinos already face among the highest electricity rates in Asia. Careless OSW timing can push that burden even higher. This is the price impact that households cannot afford — and one that government can still avert.

What would protect from unnecessary cost

Based on my talks with well-placed friends in the energy sector, if the Philippines wants OSW to succeed without punishing the public, it must change its sequencing.

1.  Postpone large-scale OSW until costs fall significantly.

Offshore wind today is where solar PV was 15 years ago — expensive, immature, and volatile in cost. Waiting could cut future LCOE by 40-60%, based on global trendlines.

2.  Start small instead of committing 3,300 MW immediately.

A few hundred megawatts of OSW — pilots — would allow the country to learn:

• how to integrate OSW into the grid
• how to build local supply chains
• how to avoid project failures

 Small-scale today shields consumers from large-scale price shocks.

  3.  Use a blended strategy.

Deploy minimal OSW first, delay the rest until the economics are better. This approach protects consumers while keeping the country on the OSW roadmap. The best transitions are not those done fastest, but those done smartest.

Future technologies may overtake OSW

Another overlooked factor is competition. The GEA mechanism may later support emerging technologies:

• hydrogen-to-power
• ammonia-fired systems
• next-generation long-duration batteries
• small modular nuclear reactors (SMRs)

If the Philippines locks into 3,300 MW of expensive OSW too early, consumers will lose the chance to benefit from future technologies that could be far cheaper. It would be the ultimate irony: Filipinos end up paying high prices for outdated technology because government committed too early.

For the consuming public, timing matters 

Offshore wind will eventually play a major role in stabilizing the Philippine grid. It provides scale, reliability, and baseload-like characteristics. But these advantages only materialize when OSW becomes cost-competitive. The public should not be forced to subsidize the learning curve of a technology that is not yet financially mature, especially when cheaper alternatives exist today.

What’s in store for Filipino consumers

If the government gets the timing right:

• power prices will stabilize
• the grid will modernize
• consumers will benefit from cheaper renewables in the long run

If it locks into OSW too early:

• power bills will surge in the early 2030s
• system costs will balloon
• consumers will pay for premature technology bets
• the country will miss cheaper technologies arriving later

In this transition, timing is everything. And the Filipino public — already burdened by one of the priciest power markets in Asia — simply cannot just afford this. – Rappler.com

Must Read

[Vantage Point] Why green energy is failing