Ed Miliband has called for a national debate over the government’s plans to accelerate the rollout of wind turbines, solar farms and pylons across the UK as a matter of “national security” and “economic justice”.

The energy secretary used his first big public address on Tuesday to argue in favour of speedy consent for new energy infrastructure to break the UK’s reliance on fossil fuels and avoid a repeat of “a crisis of the scale we have been through, with such devastating effects” in future.

In the nine weeks since the Labour party formed a new government it has removed an almost decade-long block on onshore windfarms, consented to four of the UK’s largest solar farms and established the government electricity generation company GB Energy to help invest up to £8bn in low-carbon power.

Miliband told Energy UK’s annual conference in London on Tuesday that the government’s manifesto pledge to deliver a clean power system by 2030 is “the national security, energy security, economic justice fight of our time”.

The plans have raised concerns in some parts of the country, and among opposition parties, that the growing number of onshore energy projects will require a massive expansion of pylons and overhead lines to connect them to the grid and lead to the “industrialisation of the countryside”.

Miliband said: “The faster we go, the more secure we become. Every wind turbine we put up, every solar panel we install, every piece of grid we construct helps protect families from future energy shocks.”

He added: “This is an argument we need to have as a country because the converse is also true. Every wind turbine we block, every solar farm we reject, every piece of grid we fail to build makes us less secure and more exposed. That’s why our clean energy sprint is the national security, energy security, economic justice fight of our time.”

The Labour government has also moved to take on “nimbys” by promising to get new housebuilding developments going even if it means building on green belt land, which has attracted anger from senior Conservatives and concern among some in Labour about the impact on their support locally.

Miliband added: “As somebody who believes this country suffers from deep injustice, I am determined that we do not go from an unequal, unfair, high carbon Britain to an unequal, unfair clean energy Britain. We must, in this transition, tackle fuel poverty, create good jobs, clean up our air, improve access to nature and quality of life. And I passionately believe we can.”