Urgency of Energy Demand Issues: Renewable Energy - Physics (Grade 10)

Urgency Means the Impact Cannot Wait

Urgency means the reason a problem needs attention now, not later. In energy topics, the issue is not only "we need more electricity". The issue is whether energy is available when needed, reaches the places that need it, stays reliable, remains affordable, and avoids excessive environmental damage.

Electricity is one of the closest forms of energy to your daily life. The U.S. Energy Information Administration (EIA) explains that electricity is a secondary energy source, because it is produced from other energy sources such as fuels, water, wind, sunlight, or geothermal heat. EIA's Electricity Explained page is available at eia.gov.

So, when we discuss electricity demand, we are actually discussing a long chain.

\text{energy source} \rightarrow \text{energy conversion} \rightarrow \text{grid} \rightarrow \text{energy user}

If one part of that chain fails, study lights, water pumps, medical devices, food cooling, and communication networks can be affected too.

Energy Demand Does Not Stop at One Device

One lamp may look simple. However, energy demand becomes large when many devices are used by many people at the same time.

For an electrical device, the energy used can be read from power and usage time.

E=P\times t

Symbol notes:

Symbol	Meaning
$E$	energy used
$P$	device power
$t$	usage time

Suppose $5$ lamps, each with power $10 \text{ W}$ , are turned on for $4 \text{ h}$ . The energy used is:

\begin{aligned} E &= 5 \times 10 \text{ W}\times 4 \text{ h} \\ &= 200 \text{ Wh} \\ &= 0.2 \text{ kWh} \end{aligned}

The value $0.2 \text{ kWh}$ sounds small. But if the same kind of use happens in many homes, schools, clinics, and small businesses, total energy demand grows quickly.

There is also the idea of peak load, which is the moment when many people use electricity at the same time, so the power that the system must provide becomes very large. Two areas may use similar daily energy, but the area where many devices turn on at the same hour can put more pressure on the electricity grid.

High Access Does Not Mean the Problem Is Finished

Electrification Ratio is the percentage of households with access to electricity. Electrified Village Ratio is the percentage of villages or urban villages that already have electricity.

Indonesia's Ministry of Energy and Mineral Resources (ESDM), through the Directorate General of Electricity, reported that in the fourth quarter of $2024$ , Indonesia's Electrification Ratio reached $99.83\%$ and its Electrified Village Ratio reached $99.92\%$ . At the same time, ESDM also recorded $5{,}821$ villages or urban villages that had not yet received electricity access from PT PLN (Persero), Indonesia's state electricity company. The Directorate General of Electricity's news page about those ratios is available at gatrik.esdm.go.id.

That data needs careful reading. A very high national number does not mean every remaining location has an easy problem. The places still not served are often difficult, scattered, or far from the main grid.

What a large number can show	What still needs to be checked on the ground
Many households already have electricity access	Whether the electricity is stable when needed
Many villages already have electricity	Whether all hamlets and essential facilities are served
Electricity consumption is rising	Whether generation, grids, and storage are ready enough
The national ratio is nearly complete	Whether remote areas have solutions that match their location

Rising Demand Makes Energy Decisions More Urgent

The International Energy Agency (IEA) forecasts global electricity demand to grow at an average annual rate of $3.6\%$ from $2026$ to $2030$ . IEA points to drivers such as industry, electric vehicles, air conditioning, and data centres. IEA's Electricity $2026$ executive summary is available at iea.org.

Rising demand is not automatically bad. Electricity can support learning, health services, food production, transportation, and small businesses. However, if supply and grids are not ready, rising demand can become blackouts, higher costs, or heavier use of more polluting energy sources.

Think of a school canteen. The canteen can serve many students if the food, cashier, and queue system are ready. If all students come at the same time while the food and cashier are not enough, the problem is not only "there is not enough food". The problem is that the system capacity does not match the timing of demand. In energy, that system includes energy sources, power plants, grids, storage, and usage habits.

How to Read Energy Urgency

When reading news or data about energy demand, do not stop at one number. Use these questions as a reading tool.

Question	Why it matters
Who needs the energy?	Homes, schools, clinics, industry, and transportation have different demand patterns
When is the energy needed?	Peak load can happen even when daily energy looks sufficient
How much energy and power are needed?	Energy answers the amount used, while power answers the rate of use
Where does the energy source come from?	The source affects the conversion path, cost, and environmental impact
Are the grid or storage ready?	Energy available at the source may not reach users at the right time
What happens if supply fails?	Learning, health, economic activity, and safety can be disrupted

These questions make the energy issue more concrete. We are not only saying "energy is important", but pointing to which part is urgent and why.

Why This Leads to Renewable Energy

Renewable energy is not a magic answer for every place. However, renewable energy matters because many areas have local resources that can be used if the technology matches the site.

Site condition	Source worth investigating	What still needs checking
Strong sunlight	solar energy	weather, roof or land area, batteries, and grid connection
River flow and height difference	small-scale hydropower	water flow, seasons, ecosystems, and safety
Windy coastal area	wind energy	average wind speed and daily variation
Plenty of organic waste	biogas or biomass	feedstock supply and waste management
Near a geothermal area	geothermal energy	geological survey, drilling, and environmental impact

The urgency is not simply choosing the source that sounds most modern. The urgency is finding a way for the needed energy to be truly available, delivered to users, and still reasonable for the local environment and community.